Live/247 Rank/Iowa

Iowa 24/7 Rank

Every station in Iowa ranked by its 247 score out of 100: how reliably it reports, how accurate its readings are against a reference station, how they pass their checks and how they stand against the forecast, over the last seven days.

1,027 stations ranked28.4% sent every report dueranked October 4, 2026page 3 of 5Iowa instrumentsIowa weather

A station is ranked once its week holds enough reports to measure: 12, or 3 days for a gauge that reports once a day. Of the 1,027 ranked here, 1,020 have a page of their own; the rest are platforms heard here that have not yet reported enough to be listed.

Every station, ranked

Rank	Station	Score	Network	County	Received	Reports	Arrives in	Longest silence
418	Washington 2SW - WF Crooked CrrekWFCI4	95.7	Gauge	Washington	99.2%	667 of 672	29 min	45 min
418	West Fork Little Sioux River AT MovilleWFMI4	95.7	Gauge	Woodbury	99.2%	667 of 672	29 min	45 min
418	Riverton - West Nishnabotna J46WISI4	95.7	Gauge	Fremont	99.2%	667 of 672	29 min	45 min
418	Williamsburg - Clear Creek TribWLMI4	95.7	Gauge	Iowa	99.2%	667 of 672	29 min	45 min
418	Welsh LakeWLSI4	95.7	Gauge	Dickinson	99.2%	667 of 672	29 min	45 min
418	West Union - Otter CreekWUOI4	95.7	Gauge	Fayette	99.2%	667 of 672	29 min	45 min
418	Wyoming - Bear CreekWYOI4	95.7	Gauge	Jones	99.2%	667 of 672	29 min	45 min
508	Fourmile Creek 4 WNW IFC--Altoona NE 54th AveALFI4	95.7	Gauge	Polk	99.1%	666 of 672	29 min	45 min
508	Ames 2SSE - IFC Ioway Creek DuffAMDI4	95.7	Gauge	Story	99.1%	666 of 672	29 min	45 min
508	Ames 1W - IFC Ioway Creek at Stange RdAMQI4	95.7	Gauge	Story	99.1%	666 of 672	29 min	45 min
508	Atkins - Dry CreekATDI4	95.7	Gauge	Benton	99.1%	666 of 672	29 min	45 min
508	Elgin - Otter CreekBANI4	95.7	Gauge	Fayette	99.1%	666 of 672	29 min	45 min
508	Bassett - Beaver CreekBASI4	95.7	Gauge	Chickasaw	99.1%	666 of 672	29 min	45 min
508	Brandon - North Bear CreekBNNI4	95.7	Gauge	Benton	99.1%	666 of 672	29 min	45 min
508	BrightonBRII4	95.7	Gauge	Washington	99.1%	666 of 672	29 min	45 min
508	Littleton - Buck CreekBUCI4	95.7	Gauge	Buchanan	99.1%	666 of 672	29 min	45 min
508	Central CityCCTI4	95.7	Gauge	Linn	99.1%	666 of 672	29 min	45 min
508	Clive - Walnut Creek near NW 100thCLOI4	95.7	Gauge	Polk	99.1%	666 of 672	29 min	45 min
508	Middle Raccoon River 2 ESE IFC--Carroll Olympic AveCMOI4	95.7	Gauge	Carroll	99.1%	666 of 672	29 min	45 min
508	Masonville 2NE - Coffins CreekCOFI4	95.7	Gauge	Delaware	99.1%	666 of 672	29 min	45 min
508	Walnut Creek 4 W IFC--Clive NW 128th StCWAI4	95.7	Gauge	Polk	99.1%	666 of 672	29 min	45 min
508	Brushy Creek 3 SE IFC--Dedham IA 141DEDI4	95.7	Gauge	Carroll	99.1%	666 of 672	29 min	45 min
508	Dyersville 1NE - Hewitt CreekDHCI4	95.7	Gauge	Dubuque	99.1%	666 of 672	29 min	45 min
508	Boyer River 4 SW DunlapDNLI4	95.7	Gauge	Harrison	99.1%	666 of 672	29 min	45 min
508	Denison - Boyer River at K AveDSKI4	95.7	Gauge	Crawford	99.1%	666 of 672	29 min	45 min
508	Hargrave Creek 3 W IFC--Dumont Franklin AveDUMI4	95.7	Gauge	Franklin	99.1%	666 of 672	29 min	45 min
508	Beaver Creek 2 W IFC--Eldora IA 175EDBI4	95.7	Gauge	Hardin	99.1%	666 of 672	29 min	45 min
508	South Raccoon River 3 SW IFC--Redfield Dexfield RdEFDI4	95.7	Gauge	Dallas	99.1%	666 of 672	29 min	45 min
508	ElginEGNI4	95.7	Gauge	Fayette	99.1%	666 of 672	29 min	45 min
508	Indian Creek 3 NE EmersonEMNI4	95.7	Gauge	Montgomery	99.1%	666 of 672	29 min	45 min
508	Des Moines River 0 SSW IFC--Fraser Kale RdFRAI4	95.7	Gauge	Boone	99.1%	666 of 672	29 min	45 min
508	Garrison - Mud CreekGMUI4	95.7	Gauge	Benton	99.1%	666 of 672	29 min	45 min
508	Hills - Iowa RiverHILI4	95.7	Gauge	Johnson	99.1%	666 of 672	29 min	45 min
508	Hiawatha - Otter CreekHWOI4	95.7	Gauge	Linn	99.1%	666 of 672	29 min	45 min
508	Iowa City - Willow CreekICWI4	95.7	Gauge	Johnson	99.1%	666 of 672	29 min	45 min
508	Jerico -Crane CreekJCOI4	95.7	Gauge	Chickasaw	99.1%	666 of 672	29 min	45 min
508	North Skunk River 3 SE IFC--Kellogg S 12th Ave EKLGI4	95.7	Gauge	Jasper	99.1%	666 of 672	29 min	45 min
508	Larrabee - Mill CreekLARI4	95.7	Gauge	Cherokee	99.1%	666 of 672	29 min	45 min
508	Winnebago River 0 NNE IFC--Leland Hwy A38LELI4	95.7	Gauge	Winnebago	99.1%	666 of 672	29 min	45 min
508	Little Rock River - George IbexLRGI4	95.7	Gauge	Lyon	99.1%	666 of 672	29 min	45 min
508	Troublesome Creek 4 E IFC--Lorah Troublesome Creek RdLRHI4	95.7	Gauge	Cass	99.1%	666 of 672	29 min	45 min
508	Mosquito Creek 4 ENE Council BluffsMCBI4	95.7	Gauge	Pottawattamie	99.1%	666 of 672	29 min	45 min
508	Muscatine - Mad Creek No2MDCI4	95.7	Gauge	Muscatine	99.1%	666 of 672	29 min	45 min
508	Monticello - Maquoketa CreekMNTI4	95.7	Gauge	Jones	99.1%	666 of 672	29 min	45 min
508	Shell Rock River 2 SSE IFC--Marble Rock 290th StMRBI4	95.7	Gauge	Floyd	99.1%	666 of 672	29 min	45 min
508	Slough Creek 3 SE Orchard 3SEOSCI4	95.7	Gauge	Floyd	99.1%	666 of 672	29 min	45 min
508	Oxford - Clear CreekOXCI4	95.7	Gauge	Johnson	99.1%	666 of 672	29 min	45 min
508	Clear Creek SSW Oxford-IFC-Clear Creek - Eagle AveOXDI4	95.7	Gauge	Johnson	99.1%	666 of 672	29 min	45 min
508	Wapsipinicon River 1 S Oxford JctOXJI4	95.7	Gauge	Jones	99.1%	666 of 672	29 min	45 min
508	Oxford - Rhine CreekOXRI4	95.7	Gauge	Johnson	99.1%	666 of 672	29 min	45 min
508	Owens County - Willow CreekOYEI4	95.7	Gauge	Plymouth	99.1%	666 of 672	29 min	45 min
508	Beaver Creek 3 E IFC--Parkersburg Hwy T47PARI4	95.7	Gauge	Butler	99.1%	666 of 672	29 min	45 min
508	Spring Creek 4 ESE IFC--Pleasant Hill SE 32nd AvePLEI4	95.7	Gauge	Polk	99.1%	666 of 672	29 min	45 min
508	Rock Creek 2 WSW Orchard 2WSWRCOI4	95.7	Gauge	Floyd	99.1%	666 of 672	29 min	45 min
508	Riverdale - Duck CreekRIVI4	95.7	Gauge	Scott	99.1%	666 of 672	29 min	45 min
508	Roland - Long Dick CreekRLLI4	95.7	Gauge	Story	99.1%	666 of 672	29 min	45 min
508	North Raccoon River 3 NNW IFC--Sac City 230th StSARI4	95.7	Gauge	Sac	99.1%	666 of 672	29 min	45 min
508	Saude - Little Turkey RiverSDEI4	95.7	Gauge	Chickasaw	99.1%	666 of 672	29 min	45 min
508	Silver Creek AT Silver City Dobney AveSILI4	95.7	Gauge	Mills	99.1%	666 of 672	29 min	45 min
508	Spring Run CreekSPGI4	95.7	Gauge	Dickinson	99.1%	666 of 672	29 min	45 min
508	Tiffin - Buffalo CreekTFGI4	95.7	Gauge	Johnson	99.1%	666 of 672	29 min	45 min
508	North Walnut Creek 1 NW IFC--Windsor Heights College DrWNDI4	95.7	Gauge	Polk	99.1%	666 of 672	29 min	45 min
508	Spillville - Wonder CreekWONI4	95.7	Gauge	Winneshiek	99.1%	666 of 672	29 min	45 min
564	Cedar Rapids 2.1 NWIA-LN-49	95.6	Volunteer	Linn	100%	3 of 3	11.4 h	27 h
565	CEDAR RIVER 2 S St. AnsgarAGRI4	95.6	Gauge	Mitchell	98.9%	665 of 672	29 min	45 min
565	Fourmile Creek 3 NNE IFC--Ankeny NE 47th StANFI4	95.6	Gauge	Polk	98.9%	665 of 672	29 min	45 min
565	Onion Creek 4 WNW IFC--Ames Hwy R38AONI4	95.6	Gauge	Story	98.9%	665 of 672	29 min	45 min
565	Big Spirit Lake SpillwayBSPI4	95.6	Gauge	Dickinson	98.9%	665 of 672	29 min	45 min
565	Lovilia - Cedar CreekCDVI4	95.6	Gauge	Monroe	98.9%	665 of 672	29 min	45 min
565	East Nishnabotna River 1 WSW Coburg Hwy H54COBI4	95.6	Gauge	Montgomery	98.9%	665 of 672	29 min	45 min
565	Dundee - Maquoketa RiverDUDI4	95.6	Gauge	Delaware	98.9%	665 of 672	29 min	45 min
565	Dyersville - NF Maquoketa RiverDYVI4	95.6	Gauge	Dubuque	98.9%	665 of 672	29 min	45 min
565	Riverton - East Nishnabotna River L68EISI4	95.6	Gauge	Fremont	98.9%	665 of 672	29 min	45 min
565	Brockcamp Creek AT FestinaFSTI4	95.6	Gauge	Winneshiek	98.9%	665 of 672	29 min	45 min
565	Homestead - Clear Creek TribHMTI4	95.6	Gauge	Iowa	98.9%	665 of 672	29 min	45 min
565	Kesley - EF Cedar RiverKESI4	95.6	Gauge	Butler	98.9%	665 of 672	29 min	45 min
565	Little Cedar River 5 E Orchard 5ELCOI4	95.6	Gauge	Mitchell	98.9%	665 of 672	29 min	45 min
565	Littleton - Little Wapsipinicon RiverLTNI4	95.6	Gauge	Buchanan	98.9%	665 of 672	29 min	45 min
565	May CityMAYI4	95.6	Gauge	Osceola	98.9%	665 of 672	29 min	45 min
565	Keg Creek 1 WSW Mineola Hwy H12MKCI4	95.6	Gauge	Mills	98.9%	665 of 672	29 min	45 min
565	Camp Creek 5 S IFC--Mitchellville IA 163MTCI4	95.6	Gauge	Polk	98.9%	665 of 672	29 min	45 min
565	Olin 1N - Wapsipinicon RiverOLII4	95.6	Gauge	Jones	98.9%	665 of 672	29 min	45 min
565	Burchfield Creek 4 NNW IFC--Panora Sage TrlPNBI4	95.6	Gauge	Guthrie	98.9%	665 of 672	29 min	45 min
565	Robins - Dry CreekRBDI4	95.6	Gauge	Linn	98.9%	665 of 672	29 min	45 min
565	Spillville - Turkey RiverSPVI4	95.6	Gauge	Winneshiek	98.9%	665 of 672	29 min	45 min
565	Delhi 4W - Upper Lake DelhiULDI4	95.6	Gauge	Delaware	98.9%	665 of 672	29 min	45 min
565	Soap Creek 5 N IFC--Unionville 313th AveUSOI4	95.6	Gauge	Appanoose	98.9%	665 of 672	29 min	45 min
565	Avoca 1W - West Nishnabotna RiverWAVI4	95.6	Gauge	Pottawattamie	98.9%	665 of 672	29 min	45 min
565	Walnut Creek SSW Olin-IFC-Walnut Creek - 35th StWCRI4	95.6	Gauge	Jones	98.9%	665 of 672	29 min	45 min
590	East Fork Des Moines River 8 S IFC--Algona Hwy B63AGAI4	95.6	Gauge	Kossuth	98.8%	664 of 672	29 min	45 min
590	TURKEY RIVER AT ClermontCMTI4	95.6	Gauge	Fayette	98.8%	664 of 672	29 min	45 min
590	Dubuque - N Fork CatfishDBFI4	95.6	Gauge	Dubuque	98.8%	664 of 672	29 min	45 min
590	Colo - Dye CreekDCLI4	95.6	Gauge	Story	98.8%	664 of 672	29 min	45 min
590	Maurice - StrubleFRSI4	95.6	Gauge	Sioux	98.8%	664 of 672	29 min	45 min
590	Fort Atkinson - Turkey RiverFTKI4	95.6	Gauge	Winneshiek	98.8%	664 of 672	29 min	45 min
590	Homestead - Clear CreekHMCI4	95.6	Gauge	Iowa	98.8%	664 of 672	29 min	45 min
590	Iowa City - Deer CreekICDI4	95.6	Gauge	Johnson	98.8%	664 of 672	29 min	45 min
590	Iowa City - Ralston CreekICRI4	95.6	Gauge	Johnson	98.8%	664 of 672	29 min	45 min
590	Kinross - South EnglishKRSI4	95.6	Gauge	Washington	98.8%	664 of 672	29 min	45 min
590	Wolf Creek 0 WNW IFC--La Porte City W Main StLAPI4	95.6	Gauge	Black Hawk	98.8%	664 of 672	29 min	45 min
590	Maple River AT GalvaMRGI4	95.6	Gauge	Ida	98.8%	664 of 672	29 min	45 min
590	Rock Creek 6 W Osage 6WOSRI4	95.6	Gauge	Mitchell	98.8%	664 of 672	29 min	45 min
590	South Beaver Creek 3 WSW IFC--Owasa US 65OWSI4	95.6	Gauge	Hardin	98.8%	664 of 672	29 min	45 min
590	Raven Creek 5 W IFC--Tama Hwy E49TARI4	95.6	Gauge	Tama	98.8%	664 of 672	29 min	45 min
590	Volga River AT VolgaVGAI4	95.6	Gauge	Clayton	98.8%	664 of 672	29 min	45 min
606	BlairsburgBLBI4	95.6	Gauge	Hamilton	96.4%	162 of 168	25 min	2 h
607	Skunk River AT AugustaAGSI4	95.5	Gauge	Des Moines	98.8%	166 of 168	30 min	2 h
607	White Fox Creek 1 E ClarionCWFI4	95.5	Gauge	Wright	98.8%	166 of 168	30 min	2 h
607	Milford Creek 4 NW MilfordOBJI4	95.5	Gauge	Dickinson	98.8%	166 of 168	30 min	2 h
607	Lake Odessa 4 ENE Lake OdessaODSI4	95.5	Gauge	Louisa	98.8%	166 of 168	30 min	2 h
611	Charlotte - Deep CreekCHDI4	95.5	Gauge	Clinton	98.6%	663 of 672	29 min	45 min
611	East Nodaway River 3 ESE Clarinda Hwy 2CNOI4	95.5	Gauge	Page	98.6%	663 of 672	29 min	45 min
611	Chequest Creek 5 SSW IFC--Selma Wheat AveFLCI4	95.5	Gauge	Davis	98.6%	663 of 672	29 min	45 min
611	Willow Creek 1 W IFC--Mason City N Pierce AveMSPI4	95.5	Gauge	Cerro Gordo	98.6%	663 of 672	29 min	45 min
611	Roland - Bear CreekROLI4	95.5	Gauge	Story	98.6%	663 of 672	29 min	45 min
616	Story City 8W - IFC Ioway Creek 120thBSCI4	95.5	Gauge	Boone	98.5%	662 of 672	29 min	45 min
616	Des Moines River 4 NW IFC--Fort Dodge Hwy D14FDDI4	95.5	Gauge	Webster	98.5%	662 of 672	29 min	45 min
616	Goldfield - Boone RiverGOLI4	95.5	Gauge	Wright	98.5%	662 of 672	29 min	45 min
616	Homestead - Clear CreekHMSI4	95.5	Gauge	Iowa	98.5%	662 of 672	29 min	45 min
616	Lester - Mud CreekLMCI4	95.5	Gauge	Lyon	98.5%	662 of 672	29 min	45 min
621	Ames - Ioway CreekESQI4	95.5	Gauge	Boone	97.6%	164 of 168	25 min	3.5 h
622	Cascade - NF Maquoketa RiverCSCI4	95.4	Gauge	Dubuque	98.3%	661 of 672	29 min	45 min
622	Tipton Creek 4 E IFC--Hubbard N AveHTII4	95.4	Gauge	Hardin	98.3%	661 of 672	29 min	45 min
622	North Washington 1SSE - Little WapsiNWSI4	95.4	Gauge	Chickasaw	98.3%	661 of 672	29 min	45 min
625	Cedar Rapids - Dry CreekCDDI4	95.4	Gauge	Linn	98.2%	660 of 672	29 min	45 min
625	North Raccoon River 1 N IFC--Dawson Hwy P46DAWI4	95.4	Gauge	Dallas	98.2%	660 of 672	29 min	45 min
625	Rockford 3 SSERKFI4	95.4	Gauge	Floyd	98.2%	660 of 672	29 min	45 min
628	AlgonaAXA	95.4	Airport	Kossuth	97.8%	493 of 504	14 min	2.7 h
629	Osage 2 WOSGI4	95.3	Gauge	Mitchell	98.0%	659 of 672	29 min	45 min
629	SheldonSFRI4	95.3	Gauge	Sioux	98.0%	659 of 672	29 min	45 min
629	Little Sioux River 3 NW Spencer / Highway 18SPII4	95.3	Gauge	Clay	98.0%	659 of 672	29 min	45 min
629	Walnut Creek 6 E IFC--Runnells Adkins StWLRI4	95.3	Gauge	Marion	98.0%	659 of 672	29 min	45 min
633	Forest CityFXY	95.3	Airport	Hancock	97.8%	493 of 504	14 min	2.7 h
634	AudubonADU	95.3	Airport	Audubon	97.6%	492 of 504	14 min	2.7 h
634	Boone MuniBNW	95.3	Airport	Boone	97.6%	492 of 504	14 min	2.7 h
634	DecorahDEH	95.3	Airport	Winneshiek	97.6%	492 of 504	14 min	2.7 h
634	ShenandoahSDA	95.3	Airport	Fremont	97.6%	492 of 504	14 min	2.7 h
634	Storm LakeSLB	95.3	Airport	Buena Vista	97.6%	492 of 504	14 min	2.7 h
639	Center Point 0.6 NNWIA-LN-30	95.2	Volunteer	Linn	100%	3 of 3	12.4 h	24 h
640	Frederika - EF Wapsipinicon RiverFRDI4	95.2	Gauge	Bremer	97.9%	658 of 672	29 min	45 min
641	New Vienna - NF Maquoketa RiverNWVI4	95.2	Gauge	Dubuque	97.7%	657 of 672	29 min	45 min
642	Council BluffsCBF	95.2	Airport	Pottawattamie	97.2%	490 of 504	14 min	2.7 h
642	Charles CityCCY	95.2	Airport	Floyd	97.2%	490 of 504	14 min	2.7 h
644	AnkenyIKV	95.2	Airport	Polk	97.0%	489 of 504	13 min	2.7 h
645	ClarindaICL	95.2	Airport	Page	97.0%	489 of 504	13 min	2.7 h
645	SheldonSHL	95.2	Airport	Obrien	97.0%	489 of 504	13 min	2.7 h
647	Sheffield 11SE - WF Cedar RiverSFLI4	95.1	Gauge	Franklin	97.6%	656 of 672	29 min	45 min
648	OsceolaI75	95.1	Airport	Clarke	97.6%	492 of 504	14 min	2.7 h
649	CrestonCSQ	95.1	Airport	Union	97.0%	489 of 504	14 min	2.7 h
650	OelweinOLZ	95.1	Airport	Fayette	96.8%	488 of 504	13 min	2.7 h
651	Sioux CountySXK	95.1	Airport	Sioux	96.8%	488 of 504	14 min	2.7 h
652	Alpha - Gouldsburg County ParkGPKI4	95.0	Gauge	Fayette	97.1%	653 of 672	29 min	45 min
653	PerryPRO	95.0	Airport	Dallas	97.2%	490 of 504	14 min	2.7 h
654	HarlanHNR	95.0	Airport	Shelby	97.0%	489 of 504	13 min	2.7 h
655	Newton MuniTNU	95.0	Airport	Jasper	96.6%	487 of 504	14 min	2.7 h
656	CharitonCNC	95.0	Airport	Lucas	96.6%	487 of 504	14 min	2.7 h
657	Red Rock DamRRMI4	94.9	Gauge	Marion	100%	168 of 168	35 min	61 min
658	Mississippi River AT Keokuk LD19EOKI4	94.9	Gauge	Lee	99.1%	333 of 336	24 min	60 min
659	FairfieldFFL	94.9	Airport	Jefferson	97.8%	493 of 504	14 min	2.7 h
660	Keokuk MuniEOK	94.9	Airport	Lee	97.6%	492 of 504	14 min	2.7 h
661	Gilbert - Montgomery CreekGLBI4	94.9	Gauge	Boone	97.0%	163 of 168	25 min	4 h
662	Maple River AT Ida GroveMIGI4	94.9	Gauge	Ida	96.8%	651 of 672	29 min	45 min
662	Packard 2ENE - Flood CreekPKFI4	94.9	Gauge	Butler	96.8%	651 of 672	29 min	45 min
664	DenisonDNS	94.9	Airport	Crawford	96.4%	486 of 504	13 min	2.7 h
665	HamptonHPTI4	94.8	Cooperative	Franklin	85.7%	6 of 7	13 min	36 h
666	New HamptonNHPI4	94.8	Cooperative	Chickasaw	85.7%	6 of 7	13 min	36 h
667	Osage 1WOSAI4	94.8	Cooperative	Mitchell	85.7%	6 of 7	22 min	24.3 h
668	Cedar Rapids No 1CRPI4	94.8	Cooperative	Linn	85.7%	6 of 7	22 min	26 h
669	FairfieldFRFI4	94.8	Cooperative	Jefferson	85.7%	6 of 7	23 min	2 days
669	Mapleton No. 2MPTI4	94.8	Cooperative	Monona	85.7%	6 of 7	23 min	2 days
671	Guttenberg L & D 10GTTI4	94.8	Cooperative	Clayton	85.7%	6 of 7	23 min	37 h
672	Grinnell 3 SWGRII4	94.8	Cooperative	Poweshiek	85.7%	6 of 7	23 min	2 days
673	Williamsburg 3 SEWLBI4	94.8	Cooperative	Iowa	85.7%	6 of 7	23 min	2 days
674	Spirit LakeSPRI4	94.8	Cooperative	Dickinson	85.7%	6 of 7	33 min	24 h
675	SheldonSHDI4	94.8	Cooperative	Obrien	85.7%	6 of 7	33 min	24 h
676	ShenandoahSDHI4	94.8	Cooperative	Page	85.7%	6 of 7	33 min	2 days
677	CarrollCINI4	94.8	Cooperative	Carroll	85.7%	6 of 7	53 min	2 days
678	ClarindaCLDI4	94.8	Cooperative	Page	85.7%	6 of 7	62 min	34 h
679	Fayette 3NNWFYTI4	94.8	Cooperative	Fayette	85.7%	6 of 7	63 min	2 days
680	Elkader 5SSWEKRI4	94.8	Cooperative	Clayton	85.7%	6 of 7	68 min	2 days
681	St AnsgarSANI4	94.8	Cooperative	Mitchell	85.7%	6 of 7	73 min	36.5 h
682	CherokeeCKPI4	94.8	Cooperative	Cherokee	85.7%	6 of 7	1.5 h	35 h
683	RandolphRANI4	94.8	Cooperative	Fremont	85.7%	6 of 7	1.5 h	2 days
684	Rathbun DamRADI4	94.8	Cooperative	Appanoose	85.7%	6 of 7	1.7 h	36 h
685	Holly Springs 1NWHLYI4	94.8	Cooperative	Woodbury	85.7%	6 of 7	2 h	36 h
686	Strawberry PointSPTI4	94.8	Cooperative	Clayton	85.7%	6 of 7	2 h	36 h
687	Bennett Creek 4 WSW IFC--Tama G AveTMBI4	94.7	Gauge	Tama	98.8%	664 of 672	29 min	60 min
688	Freeport - Upper Iowa RiverFREI4	94.7	Gauge	Winneshiek	98.6%	663 of 672	29 min	59 min
689	IndependenceIIB	94.7	Airport	Buchanan	97.0%	489 of 504	14 min	2.7 h
689	PellaPEA	94.7	Airport	Marion	97.0%	489 of 504	14 min	2.7 h
691	Iowa FallsIFA	94.7	Airport	Hardin	96.6%	487 of 504	14 min	2.7 h
692	Le MarsLRJ	94.7	Airport	Plymouth	96.4%	486 of 504	14 min	2.7 h
693	EllsworthELSI4	94.7	Gauge	Hamilton	94.0%	158 of 168	25 min	3 h
694	Big Sioux River 1 NW AkronAKRI4	94.7	Gauge	Plymouth	93.7%	210 of 224	25 min	61 min
695	Little Sioux River AT CherokeeCHKI4	94.6	Gauge	Cherokee	99.1%	333 of 336	35 min	60 min
695	Floyd River AT Le MarsLMRI4	94.6	Gauge	Plymouth	99.1%	333 of 336	35 min	60 min
695	Floyd River 1 N SheldonSHLI4	94.6	Gauge	O Brien	99.1%	333 of 336	35 min	60 min
695	Little Sioux River AT SpencerSPWI4	94.6	Gauge	Clay	99.1%	333 of 336	35 min	60 min
695	Struble 2 NSTUI4	94.6	Gauge	Sioux	99.1%	333 of 336	35 min	60 min
700	GrinnellGGI	94.6	Airport	Poweshiek	97.6%	492 of 504	14 min	2.7 h
700	HamptonHPT	94.6	Airport	Franklin	97.6%	492 of 504	14 min	2.7 h
702	Volga River AT WadenaWADI4	94.6	Gauge	Fayette	96.1%	646 of 672	29 min	45 min
703	StanhopeSTHI4	94.6	Gauge	Hamilton	94.0%	158 of 168	26 min	2.5 h
704	AudubonAUDI4	94.6	Cooperative	Audubon	85.7%	6 of 7	2.9 h	2 days
705	CherokeeCKP	94.5	Airport	Cherokee	97.2%	490 of 504	14 min	3.3 h
705	Red OakRDK	94.5	Airport	Montgomery	97.2%	490 of 504	14 min	3.3 h
707	KnoxvilleOXV	94.5	Airport	Marion	95.6%	482 of 504	14 min	2.7 h
708	South Skunk River 4 NNE Ames McFarland ParkMCPI4	94.5	Gauge	Story	94.0%	158 of 168	26 min	2.5 h
709	CarrollCIN	94.4	Airport	Carroll	97.6%	492 of 504	14 min	2.7 h
710	Little Sioux River 4 SSE TurinTURI4	94.3	Gauge	Monona	92.8%	208 of 224	25 min	61 min
711	VintonVTI	94.2	Airport	Benton	97.2%	490 of 504	14 min	3.3 h
712	Muscatine - Mad CreekMUTI4	94.1	Gauge	Muscatine	97.3%	654 of 672	29 min	60 min
713	ClarionCAV	94.1	Airport	Wright	96.4%	486 of 504	14 min	2.7 h
714	Merrill County - Floyd RiverMELI4	94.1	Gauge	Plymouth	94.6%	636 of 672	29 min	45 min
714	Washburn - Miller CreekWASI4	94.1	Gauge	Black Hawk	94.6%	636 of 672	29 min	45 min
716	Story City - SkunkESKI4	94.1	Gauge	Story	93.4%	157 of 168	25 min	3.5 h
717	HPTI4HPTI4	94.1	DCP	-	85.7%	6 of 7	3.9 h	36 h
718	CentervilleTVK	94.0	Airport	Appanoose	97.2%	490 of 504	14 min	2.7 h
719	Des Moines River 2 W SaylorvilleSDTI4	94.0	Gauge	Polk	95.3%	641 of 672	23 min	74 min
720	Maple River AT MapletonMAPI4	94.0	Gauge	Monona	91.9%	206 of 224	25 min	61 min
720	East Nishnabotna River AT Red OakRDOI4	94.0	Gauge	Montgomery	91.9%	206 of 224	25 min	61 min
722	IOWIOW	94.0	DCP	-	85.7%	6 of 7	4 h	24 h
723	Fort MadisonFSW	93.9	Airport	Lee	97.4%	491 of 504	14 min	3.3 h
724	Webster CityEBS	93.9	Airport	Hamilton	97.0%	489 of 504	14 min	3.3 h
725	Webster CountyWBAI4	93.9	Gauge	Boone	92.2%	155 of 168	26 min	2.5 h
726	Mount PleasantMPZ	93.8	Airport	Henry	97.4%	491 of 504	14 min	2.7 h
727	MerrillMRLI4	93.8	Gauge	Plymouth	97.0%	326 of 336	35 min	60 min
728	JohnstonUBSI4	93.8	Cooperative	Polk	85.7%	6 of 7	4.5 h	36 h
729	Monticello MuniMXO	93.7	Airport	Jones	97.2%	490 of 504	14 min	2.7 h
730	Monona-Harrison Ditch 4 SSW TurinTRNI4	93.7	Gauge	Monona	91.0%	204 of 224	25 min	1.8 h
731	Winnebago River 5 ESE IFC--Mason City Hwy S56MCRI4	93.6	Gauge	Cerro Gordo	97.7%	657 of 672	29 min	75 min
732	WashingtonAWG	93.6	Airport	Washington	96.4%	486 of 504	13 min	2.7 h
733	Upper Iowa River 3 NW Decorah 3NWUIDI4	93.5	Gauge	Winneshiek	92.8%	624 of 672	29 min	45 min
734	MuscatineMUT	93.3	Airport	Muscatine	97.0%	489 of 504	14 min	2.7 h
735	De Soto (I-80/US 169)RDEI4	93.3	Road	Dallas	87.7%	884 of 1,008	17 min	40 min
735	Des Moines (I-235)RDMI4	93.3	Road	Polk	87.7%	884 of 1,008	17 min	40 min
735	Fort Dodge (US 20)RFDI4	93.3	Road	Webster	87.7%	884 of 1,008	17 min	40 min
735	Missouri Valley (I-29)RMVI4	93.3	Road	Harrison	87.7%	884 of 1,008	17 min	40 min
735	Osceola (US 34)ROSI4	93.3	Road	Clarke	87.7%	884 of 1,008	17 min	40 min
735	Pella (IA 163)RPLI4	93.3	Road	Marion	87.7%	884 of 1,008	17 min	40 min
735	MovilleRSCI4	93.3	Road	Woodbury	87.7%	884 of 1,008	17 min	40 min
735	Sigourney (IA 92)RSGI4	93.3	Road	Keokuk	87.7%	884 of 1,008	17 min	40 min
735	Storm Lake (US 71/IA 3)RSLI4	93.3	Road	Buena Vista	87.7%	884 of 1,008	17 min	40 min
735	Sloan I-29RSOI4	93.3	Road	Monona	87.7%	884 of 1,008	17 min	40 min
735	Tipton (I-80)RTPI4	93.3	Road	Cedar	87.7%	884 of 1,008	17 min	40 min
746	BedfordRBFI4	93.2	Road	Taylor	87.6%	883 of 1,008	17 min	40 min
746	Creston (US 34)RCEI4	93.2	Road	Union	87.6%	883 of 1,008	17 min	40 min
746	Colfax - I-80RCFI4	93.2	Road	Jasper	87.6%	883 of 1,008	17 min	40 min
746	CantrilRCLI4	93.2	Road	Van Buren	87.6%	883 of 1,008	17 min	40 min
746	De Witt (US 30/US 61)RDWI4	93.2	Road	Clinton	87.6%	883 of 1,008	17 min	40 min

How a station is ranked

The 247 Rank answers one question about a weather station: can its readings be relied on? A station has to deliver: its reports arrive when due, soon, without long silences. And its readings have to be right: close to a trusted station nearby, passing their checks, and in step with the weather the forecast and its neighbours confirm.

The 247 score

Storm Station's poller asks every network on its own schedule, around the clock, and keeps the time of every report it hears; the reference comparison and the forecast engine keep the rest. From the last seven days of that record each station is scored out of 100 on six parts, and its 247 score is their weighted mean:

Reports receivedweight 35The share of its scheduled reports received. A station that sends every 5 minutes is due 2,016 reports in a week; one that reports once a day is due 7. Each report is counted in a slot centred on the station's own report time, so a report a minute early or late is still on time, and the week ends an hour back, so a report still on its way is never counted missed.Full marks: 100% received. No marks: none received.
Arrivalweight 10The median time its reports took to arrive from the moment a reading was taken to the moment it reached Storm Station.Full marks: within 10 minutes, or a tenth of its schedule for a station that reports less often. No marks: an hour, or its whole schedule.
Continuityweight 10Its longest silence against its own schedule, so a daily gauge is not marked down for a day between reports.Full marks: a silence of 3 reports or less. No marks: 72 reports, falling evenly on a log scale between.
Accuracyweight 20How closely its temperature follows its reference station the nearest airport or climate reference station that reported within half an hour, up to 15 miles away, reading by reading. A steady offset is taken out, and where both heights are known only the offset beyond 3 F that the height difference does not explain is counted.Full marks: within 1.5 F, allowing 0.1 F more for each mile to the reference. No marks: 6.5 F beyond that.
Instrument checksweight 15The share of its readings that pass a check. For an airfield, the check the forecast engine runs the next day: each reading against the stations around it, as weather services check their own. For any other station, a reading 20 F or more from its reference fails, unless the two stand 3,000 ft or more apart.Full marks: none failed. No marks: 5% failed.
Forecast checkweight 10How closely its temperature matched Storm Station's forecast for the same hours, checked the next day, for every airfield the forecast engine scores. A station whose readings stray far from a forecast its neighbours confirm is one to doubt.Full marks: within 2 F on average. No marks: 8 F.

A part is scored once the week holds 24 readings or comparisons for it. A part that cannot be measured where a station stands counts at the middle of its state's measured stations, so the station is neither lifted nor sunk by it. A part measured nowhere in the state is left out, and the others carry its weight.

From score to rank

Each state's stations are ranked by their score, to the tenth. At an equal score the longer record comes first: a station that sent 2,016 of 2,016 reports has shown more than one that sent 7 of 7. Then the faster arrival, then the shorter silence. Ties on all of them share a rank, as a race is scored: three stations tied for third are all third, and the next is sixth.

A station is ranked once its week holds enough reports to measure: 12, or 3 days for a gauge that reports once a day. The rank is made again every day, so a station that falls silent or starts to read wrong drops, and one that recovers climbs back. Every page shows the same ranking: a station's rank here, in its state's list and on its own page come from one run, and a new run reaches them together. Each station's page shows its score part by part, with the figures behind each.

The same figures as data

/api/ranks for a state and /api/rank for one station, its score in parts; the developer page has every field.