Live/247 Rank/Pennsylvania

Pennsylvania 24/7 Rank

Every station in Pennsylvania 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.

956 stations ranked38.3% sent every report dueranked October 4, 2026page 3 of 4Pennsylvania instrumentsPennsylvania 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 956 ranked here, 929 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
490	First Fork Sinnemahoning Creek AT WhartonWHRP1	97.1	Gauge	Potter	98.8%	166 of 168	21 min	2 h
490	Codorus Creek AT YorkYRCP1	97.1	Gauge	York	98.8%	166 of 168	21 min	2 h
503	Crooked Creek AT Tioga (hammond Lake)TGHP1	97.1	Gauge	Tioga	98.8%	166 of 168	21 min	2 h
504	Freeport Lock No5FRTP1	97.1	Gauge	Beaver	98.8%	166 of 168	21 min	2 h
505	LACKAWAXEN AT Lackawaxen River At RowlandROWP1	97.1	Gauge	Pike	98.3%	661 of 672	20 min	31 min
506	LPWP1LPWP1	97.0	DCP	-	100%	7 of 7	8.2 h	24 h
507	Lackawaxen River AT HawleyHWYP1	97.0	Gauge	Wayne	98.2%	660 of 672	20 min	31 min
508	Cobbs Creek at Mt. Moriah CemeteryCMMP1	97.0	Gauge	Philadelphia	98.0%	659 of 672	20 min	45 min
509	Strausstown 1.5 NPA-BR-56	96.9	Volunteer	Berks	100%	3 of 3	8.4 h	24 h
510	Dauphin 2.6 NNEPA-DP-32	96.9	Volunteer	Dauphin	100%	3 of 3	8.4 h	24 h
511	Mohrsville 0.1 WPA-BR-49	96.9	Volunteer	Berks	100%	3 of 3	8.4 h	25 h
512	Monongahela River AT CharleroiCHRP1	96.9	Gauge	Westmoreland	98.2%	165 of 168	21 min	2 h
512	Marsh CRK NrDNTP1	96.9	Gauge	Chester	98.2%	165 of 168	21 min	2 h
512	Pequea Creek AT RonksRONP1	96.9	Gauge	Lancaster	98.2%	165 of 168	21 min	2 h
515	Frankford Creek AT FrankfordFCRP1	96.9	Gauge	Philadelphia	97.9%	658 of 672	20 min	45 min
516	East Branch Perkiomen AT SchwenksvilleSWVP1	96.8	Gauge	Montgomery	99.4%	167 of 168	23 min	2 h
517	Juniata River AT Mapleton DepotMPLP1	96.8	Gauge	Huntingdon	99.4%	167 of 168	23 min	2 h
518	OHIO RIVER AT Emsworth L/d TailEMSP1	96.7	Gauge	Allegheny	98.9%	665 of 672	15 min	75 min
519	REDSTONE CREEK AT WaltersburgWLTP1	96.6	Gauge	Fayette	100%	168 of 168	25 min	60 min
520	March Creek AT BlanchardBNDP1	96.6	Gauge	Centre	100%	168 of 168	26 min	60 min
521	West Branch Susquehanna AT LewisburgLWBP1	96.6	Gauge	Northumberland	100%	168 of 168	26 min	78 min
521	Susquehanna River AT TowandaTOWP1	96.6	Gauge	Bradford	100%	168 of 168	26 min	78 min
521	Antietam Creek AT WaynesboroWANP1	96.6	Gauge	Franklin	100%	168 of 168	26 min	78 min
524	Monocacy CreekBTHP1	96.6	Gauge	Northampton	100%	168 of 168	26 min	1.5 h
525	Susquehanna River Above FabridamFABP1	96.6	Gauge	Northumberland	100%	168 of 168	26 min	78 min
525	South Fork Tenmile Creek 1 SW JeffersonJFRP1	96.6	Gauge	Greene	100%	168 of 168	26 min	78 min
527	Bears HeadBHDP1	96.6	Gauge	Schuylkill	99.4%	167 of 168	13 min	2 h
528	Tohicken CreekPSVP1	96.6	Gauge	Bucks	98.8%	166 of 168	23 min	2 h
529	Beaver River AT Beaver FallsBEAP1	96.5	Gauge	Beaver	99.4%	167 of 168	25 min	2 h
529	E Branch Perkiomen NearDBLP1	96.5	Gauge	Bucks	99.4%	167 of 168	25 min	2 h
529	Swatara Creek AT Harper TavernHTVP1	96.5	Gauge	Lebanon	99.4%	167 of 168	25 min	2 h
532	North EastNREP1	96.5	Gauge	Erie	97.0%	163 of 168	21 min	2 h
533	Biglerville 6.4 WNWPA-AD-76	96.4	Volunteer	Adams	100%	3 of 3	9.4 h	24 h
533	Bryn Mawr 0.7 WPA-DL-15	96.4	Volunteer	Delaware	100%	3 of 3	9.4 h	24 h
535	Harford 1.4 NNEPA-SS-19	96.4	Volunteer	Susquehanna	100%	3 of 3	9.4 h	24 h
535	Webster 0.9 NNWPA-WT-97	96.4	Volunteer	Westmoreland	100%	3 of 3	9.4 h	24 h
535	York 1.8 ESEPA-YR-53	96.4	Volunteer	York	100%	3 of 3	9.4 h	24 h
538	Spring City 4.9 WPA-CH-66	96.4	Volunteer	Chester	100%	3 of 3	9.4 h	24 h
539	Little Conewago CreekLCCP1	96.4	Gauge	Lebanon	99.4%	167 of 168	26 min	1.8 h
539	OIL CREEK AT RousevilleROSP1	96.4	Gauge	Venango	99.4%	167 of 168	26 min	1.8 h
539	Conemaugh River AT SewardSWDP1	96.4	Gauge	Westmoreland	99.4%	167 of 168	26 min	1.8 h
539	TIONESTA CREEK AT Tionesta Dam TwTNTP1	96.4	Gauge	Forest	99.4%	167 of 168	26 min	1.8 h
539	French Creek AT Union City LakeUCTP1	96.4	Gauge	Erie	99.4%	167 of 168	26 min	1.8 h
544	Allegheny River AT CW Bill Young DamACMP1	96.4	Gauge	Allegheny	99.4%	167 of 168	26 min	2 h
544	West Branch Susquehanna River AT AllenwoodALWP1	96.4	Gauge	Northumberland	99.4%	167 of 168	26 min	2 h
544	Little Lehigh AT Allentown 10th St BridgeAPAP1	96.4	Gauge	Lehigh	99.4%	167 of 168	26 min	2 h
544	OHIO RIVER AT Emsworth L/d PoolEMXP1	96.4	Gauge	Allegheny	99.4%	167 of 168	26 min	2 h
544	Swatara Creek AT HersheyHERP1	96.4	Gauge	Dauphin	99.4%	167 of 168	26 min	2 h
544	PymatuningJMSP1	96.4	Gauge	Crawford	99.4%	167 of 168	26 min	2 h
544	LOYALHANNA CREEK AT KingstonKINP1	96.4	Gauge	Westmoreland	99.4%	167 of 168	26 min	2 h
544	LOYALHANNA CREEK 2 S Loyalhanna Dam PoolLYLP1	96.4	Gauge	Westmoreland	99.4%	167 of 168	26 min	2 h
544	NorthbrookNBKP1	96.4	Gauge	Chester	99.4%	167 of 168	26 min	2 h
544	Sinnemahoning Creek AT SinnemahoningSNNP1	96.4	Gauge	Cameron	99.4%	167 of 168	26 min	2 h
544	Little Juniata River AT Spruce CreekSPKP1	96.4	Gauge	Huntingdon	99.4%	167 of 168	26 min	2 h
544	TIONESTA CREEK AT Tionesta Dam PoolTIOP1	96.4	Gauge	Forest	99.4%	167 of 168	26 min	2 h
544	SHENANGO RIVER AT TransferTRNP1	96.4	Gauge	Mercer	99.4%	167 of 168	26 min	2 h
544	Lehigh River AT F.E. Walter DamWHNP1	96.4	Gauge	Luzerne	99.4%	167 of 168	26 min	2 h
558	Monongahela River AT BraddockBDDP1	96.4	Gauge	Allegheny	97.6%	656 of 672	18 min	60 min
559	CHEAT RIVER AT Lake Lynn Dam TailwaterLLDP1	96.3	Gauge	Fayette	97.7%	657 of 672	15 min	75 min
560	Beaver Falls ArptBVI	96.3	Airport	Beaver	97.2%	490 of 504	10 min	2 h
561	Dunning Creek AT BeldenBELP1	96.3	Gauge	Bedford	96.4%	162 of 168	21 min	2.1 h
562	Tulpehocken Creek AT Blue Marsh Dam OutflBMRP1	96.1	Gauge	Berks	98.8%	166 of 168	26 min	2 h
562	Tulpehocken CreekBRVP1	96.1	Gauge	Berks	98.8%	166 of 168	26 min	2 h
562	Conewago Creek AT BellaireCCBP1	96.1	Gauge	Lancaster	98.8%	166 of 168	26 min	2 h
562	Chillisquaque Creek AT Potts GroveCCPP1	96.1	Gauge	Northumberland	98.8%	166 of 168	26 min	2 h
562	West Branch Brandywine Creek AT CoatesvilleCOTP1	96.1	Gauge	Chester	98.8%	166 of 168	26 min	2 h
562	SAW MILL RUN 1 S Duquesne HeightsDQHP1	96.1	Gauge	Allegheny	98.8%	166 of 168	26 min	2 h
562	East Branch Clarion River Lake 2 NE Glen HazelEBRP1	96.1	Gauge	Elk	98.8%	166 of 168	26 min	2 h
562	BLACKLICK CREEK AT JosephineJOSP1	96.1	Gauge	Indiana	98.8%	166 of 168	26 min	2 h
562	Red Clay Creek AT Kennet SquareKNSP1	96.1	Gauge	Chester	98.8%	166 of 168	26 min	2 h
562	Strickler - Kreutz CreekKRZP1	96.1	Gauge	York	98.8%	166 of 168	26 min	2 h
562	Lycoming Creek AT WilliamsportLYCP1	96.1	Gauge	Lycoming	98.8%	166 of 168	26 min	2 h
562	Corey Creek 1 W MainesburgMBGP1	96.1	Gauge	Tioga	98.8%	166 of 168	26 min	2 h
562	French Creek AT MeadvilleMEDP1	96.1	Gauge	Crawford	98.8%	166 of 168	26 min	2 h
562	MercerMRGP1	96.1	Gauge	Mercer	98.8%	166 of 168	26 min	2 h
562	Monongahela River AT Point MarionPMRP1	96.1	Gauge	Greene	98.8%	166 of 168	26 min	2 h
562	Aquashicola CRKPRTP1	96.1	Gauge	Carbon	98.8%	166 of 168	26 min	2 h
562	Schuylkill River AT PottstownPTNP1	96.1	Gauge	Chester	98.8%	166 of 168	26 min	2 h
562	PunxsutawneyPXTP1	96.1	Gauge	Jefferson	98.8%	166 of 168	26 min	2 h
562	Schuylkill River AT ReadingRDRP1	96.1	Gauge	Berks	98.8%	166 of 168	26 min	2 h
562	Susquehanna River AT SunburySBYP1	96.1	Gauge	Snyder	98.8%	166 of 168	26 min	2 h
562	First Fork Sinnemahoning Creek AT SinnemahoningSFFP1	96.1	Gauge	Cameron	98.8%	166 of 168	26 min	2 h
562	Sherman Creek AT Shermans DaleSMDP1	96.1	Gauge	Perry	98.8%	166 of 168	26 min	2 h
562	Lehigh River NrSTDP1	96.1	Gauge	Monroe	98.8%	166 of 168	26 min	2 h
562	Little Schuylkill RiverTQAP1	96.1	Gauge	Schuylkill	98.8%	166 of 168	26 min	2 h
562	Tulpehocken Creek AT ReadingTULP1	96.1	Gauge	Berks	98.8%	166 of 168	26 min	2 h
562	Cowanesque River AT WestfieldWFDP1	96.1	Gauge	Tioga	98.8%	166 of 168	26 min	2 h
588	Swatara Creek AT MiddletownMTLP1	96.1	Gauge	Dauphin	98.8%	166 of 168	26 min	2.3 h
589	Muir AAF/IndiantownMUI	96.1	Airport	Lebanon	97.0%	163 of 168	10 min	3.7 h
590	Clearfield-Lawrence Apt(Was N97)FIG	96.1	Airport	Clearfield	96.4%	162 of 168	11 min	5.6 h
591	Jordan CRK NrSNVP1	96.1	Gauge	Lehigh	95.8%	161 of 168	21 min	2.1 h
592	Kettle Creek AT Alvin R. Bush LakeBUSP1	96.1	Gauge	Clinton	95.8%	161 of 168	21 min	2 h
592	Tuscarora Creek AT Port RoyalPORP1	96.1	Gauge	Juniata	95.8%	161 of 168	21 min	2 h
594	Aughwick Creek AT Three SpringsAUGP1	96.1	Gauge	Huntingdon	95.8%	161 of 168	21 min	2.1 h
594	Raystown Branch Juniata AT BedfordBEDP1	96.1	Gauge	Bedford	95.8%	161 of 168	21 min	2.1 h
594	Kinzua Creek 2 W GuffeyGUFP1	96.1	Gauge	Mckean	95.8%	161 of 168	21 min	2.1 h
594	Allegheny River AT Kinzua DamKNZP1	96.1	Gauge	Warren	95.8%	161 of 168	21 min	2.1 h
594	Bixler Run 4 W LoysvilleLYVP1	96.1	Gauge	Perry	95.8%	161 of 168	21 min	2.1 h
594	Manchester BeachWCRP1	96.1	Gauge	Erie	95.8%	161 of 168	21 min	2.1 h
594	BEAVER RIVER AT WampumWPMP1	96.1	Gauge	Lawrence	95.8%	161 of 168	21 min	2.1 h
594	Allegheny River AT WarrenWRRP1	96.1	Gauge	Warren	95.8%	161 of 168	21 min	2.1 h
602	Chestnut SpringsCNUP1	96.0	Gauge	Mifflin	100%	168 of 168	10 min	60 min
603	Gap 0.3 NWPA-LN-23	96.0	Volunteer	Lancaster	100%	3 of 3	10.4 h	24 h
604	LACKAWANNA RIVER AT Parker Street BridgePKIP1	96.0	Gauge	Lackawanna	98.3%	661 of 672	26 min	45 min
605	PhiladelphiaTACP1	95.9	Gauge	Philadelphia	98.2%	165 of 168	26 min	2 h
605	Tobyhanna Creek NrTBYP1	95.9	Gauge	Carbon	98.2%	165 of 168	26 min	2 h
607	Kishacoquillas Creek AT ReedsvilleREEP1	95.9	Gauge	Mifflin	95.2%	160 of 168	21 min	2.1 h
608	Mount Carmel - Roaring CreekROAP1	95.8	Gauge	Northumberland	100%	168 of 168	12 min	60 min
609	Ohio River AT MontgomeryMGYP1	95.8	Gauge	Beaver	98.8%	664 of 672	19 min	75 min
610	Perkiomen Creek AT GraterfordGRAP1	95.7	Gauge	Montgomery	99.4%	167 of 168	26 min	2 h
611	North Branch Neshaminy CrNEBP1	95.7	Gauge	Montgomery	97.6%	164 of 168	26 min	2 h
611	Crum CRK NrNTSP1	95.7	Gauge	Delaware	97.6%	164 of 168	26 min	2 h
613	Clarion River AT CooksburgCOKP1	95.6	Gauge	Clarion	100%	168 of 168	31 min	63 min
613	Sandy Lick Creek AT DuboisDUBP1	95.6	Gauge	Clearfield	100%	168 of 168	31 min	63 min
615	Monongahela River AT Grays LandingGYLP1	95.6	Gauge	Fayette	98.2%	660 of 672	19 min	75 min
616	ConnellsvilleVVS	95.6	Airport	Fayette	97.4%	491 of 504	10 min	2.7 h
617	Oxford 2.1 ENEPA-CH-48	95.5	Volunteer	Chester	100%	3 of 3	11.4 h	24 h
618	Wyndmoor 3.0 SSWPA-PH-6	95.5	Volunteer	Philadelphia	100%	3 of 3	11.4 h	24 h
619	Cambridge SpringsCBSP1	95.5	Gauge	Crawford	99.4%	169 of 170	30 min	63 min
620	AllentownXLL	95.5	Airport	Lehigh	97.0%	489 of 504	10 min	2.7 h
621	West Branch Perkiomen Creek AT HillegassHLGP1	95.5	Gauge	Montgomery	97.0%	163 of 168	26 min	2 h
622	TURTLE CREEK AT WilmerdingWRDP1	95.4	Gauge	Allegheny	99.4%	167 of 168	30 min	2 h
623	RACCOON CREEK AT Moffats MillMFFP1	95.4	Gauge	Beaver	99.4%	167 of 168	30 min	2 h
624	Muncy Creek AT MuncyMNYP1	95.4	Gauge	Lycoming	99.4%	167 of 168	31 min	2 h
625	CONNOQUENESSING CK 5 WNW ZelienopleZLPP1	95.4	Gauge	Beaver	98.2%	660 of 672	20 min	75 min
626	Juniata River AT LewistownLWSP1	95.3	Gauge	Mifflin	99.4%	167 of 168	31 min	2 h
627	East Branch Brandywine Creek AT DowningtownDWNP1	95.3	Gauge	Chester	98.9%	665 of 672	26 min	60 min
628	Marcus Hook NWLONMRCP1	95.3	Gauge	Delaware	97.6%	820 of 840	23 min	48 min
628	Delaware River AT Newbold IslandNBLP1	95.3	Gauge	Bucks	97.6%	820 of 840	23 min	48 min
630	Delaware River AT USCG Washington St PhiladelphiaPHBP1	95.3	Gauge	Philadelphia	97.3%	818 of 840	23 min	48 min
631	Bridesburg - 8546252BDSP1	95.3	Gauge	Philadelphia	97.2%	817 of 840	25 min	42 min
632	ChalkhillFNSP1	95.2	Gauge	Fayette	98.8%	168 of 170	30 min	63 min
632	IndianaINIP1	95.2	Gauge	Indiana	98.8%	168 of 170	30 min	63 min
634	Somerset2G9	95.2	Airport	Somerset	97.4%	491 of 504	10 min	2.7 h
635	Red Hill 2.7 SWPA-MT-108	95.1	Volunteer	Montgomery	100%	3 of 3	12.4 h	24 h
636	Clearfield 1.0 WSWPA-CF-3	95.1	Volunteer	Clearfield	100%	3 of 3	12.4 h	24 h
637	Curwensville - Andersen CreekACCP1	95.1	Gauge	Clearfield	98.8%	166 of 168	31 min	2 h
637	Paxton Creek AT GlenwoodGLWP1	95.1	Gauge	Dauphin	98.8%	166 of 168	31 min	2 h
637	West Branch Susquehanna AT West MiltonILTP1	95.1	Gauge	Union	98.8%	166 of 168	31 min	2 h
637	Loyalsock Creek AT LoyalsockvilleLOYP1	95.1	Gauge	Lycoming	98.8%	166 of 168	31 min	2 h
637	Schuylkill River AT NorristownNRSP1	95.1	Gauge	Montgomery	98.8%	166 of 168	31 min	2 h
637	Redbank Creek AT Saint CharlesSNCP1	95.1	Gauge	Armstrong	98.8%	166 of 168	31 min	2 h
643	Allegheny River AT FreeportFREP1	95.1	Gauge	Armstrong	98.8%	166 of 168	31 min	2 h
643	SLIPPERY ROCK CREEK AT WurtemburgWURP1	95.1	Gauge	Lawrence	98.8%	166 of 168	31 min	2 h
645	Clarion River AT RidgwayRDYP1	95.1	Gauge	Elk	98.3%	661 of 672	26 min	60 min
646	North Branch Neshaminy CreekCHLP1	95.1	Gauge	Bucks	95.8%	161 of 168	26 min	2 h
646	Perkiomen Creek AT East GreenvilleEGRP1	95.1	Gauge	Montgomery	95.8%	161 of 168	26 min	2 h
648	Chillisquaque 1 N WashingtonvilleWVQP1	95.0	Gauge	Montour	98.2%	660 of 672	26 min	60 min
649	Neshaminy Creek AT Penns ParkPEPP1	94.9	Gauge	Bucks	98.2%	165 of 168	31 min	2 h
650	CLARION RIVER AT Piney Dam TwPNDP1	94.8	Gauge	Clarion	98.5%	662 of 672	21 min	1.5 h
651	Allegheny River AT SharpsburgSHRP1	94.8	Gauge	Allegheny	97.6%	164 of 168	30 min	2 h
652	West Branch Susquehanna AT Jersey ShoreJRSP1	94.7	Gauge	Lycoming	97.6%	164 of 168	31 min	2 h
653	STPP1STPP1	94.7	DCP	-	85.7%	12 of 14	21 min	18.7 h
654	BGVP1BGVP1	94.7	DCP	-	85.7%	12 of 14	21 min	19.5 h
655	Tionesta DamTIOP1	94.7	Cooperative	Forest	85.7%	6 of 7	19 min	37.1 h
656	Slippery RockSPPP1	94.7	Cooperative	Butler	85.7%	6 of 7	19 min	46.9 h
657	Natrona DamNATP1	94.7	Cooperative	Allegheny	85.7%	6 of 7	29 min	2 days
658	Mahoning LakePNYP1	94.7	Cooperative	Armstrong	85.7%	6 of 7	29 min	47 h
659	Pine Grive 1SWPGSP1	94.7	Gauge	Schuylkill	85.7%	6 of 7	31 min	26 h
660	WaynesburgWYNP1	94.7	Cooperative	Greene	85.7%	6 of 7	2.3 h	47 h
661	Brodhead Creek AT Minisink HillsMNSP1	94.5	Gauge	Bucks	97.0%	163 of 168	31 min	2 h
662	Palmerton 2.5 NNEPA-CB-39	94.1	Volunteer	Carbon	100%	3 of 3	14.4 h	2 days
663	BedfordHMZ	93.8	Airport	Bedford	97.8%	493 of 504	10 min	2.7 h
664	SUNP1SUNP1	93.8	DCP	-	85.7%	6 of 7	4.3 h	24 h
665	Lebanon 3.1 SSEPA-LB-21	93.7	Volunteer	Lebanon	100%	3 of 3	15.4 h	27 h
666	Imperial 1.6 WNWPA-AL-137	93.7	Volunteer	Allegheny	100%	3 of 3	15.4 h	2 days
667	Susquehanna River AT MeshoppenMHPP1	93.7	Gauge	Wyoming	94.6%	636 of 672	26 min	61 min
668	Bradford RegionalBFD	93.7	Airport	Mckean	83.1%	178 of 214	12 min	2 h
669	Iron Bridge - Buffalo CreekIRNP1	93.5	Gauge	Armstrong	88.6%	149 of 168	21 min	3 h
670	Wolf PondWLFP1	93.4	Gauge	Dauphin	99.4%	167 of 168	13 min	2 h
671	Schuylkill River AT BerneBREP1	93.4	Gauge	Berks	99.4%	167 of 168	41 min	2 h
672	Tulpehocken Creek AT Blue Marsh LakePLVP1	93.4	Gauge	Berks	99.4%	167 of 168	41 min	2 h
673	CHARTIERS CREEK AT CarnegieCARP1	93.4	Gauge	Allegheny	96.4%	162 of 168	31 min	4 h
674	Ephrata 0.9 EPA-LN-32	93.2	Volunteer	Lancaster	100%	3 of 3	16.4 h	24 h
674	Tatamy 0.2 WNWPA-NH-18	93.2	Volunteer	Northampton	100%	3 of 3	16.4 h	24 h
676	Newtown 1.6 SPA-BK-76	93.2	Volunteer	Bucks	100%	3 of 3	16.4 h	25 h
677	Gettysburg 4.3 NPA-AD-86	93.2	Volunteer	Adams	100%	3 of 3	16.4 h	2 days
677	Sellersville 1.7 SEPA-BK-61	93.2	Volunteer	Bucks	100%	3 of 3	16.4 h	2 days
677	Green Lane 2.2 WSWPA-MT-160	93.2	Volunteer	Montgomery	100%	3 of 3	16.4 h	2 days
677	Pennsburg 1.6 SSWPA-MT-92	93.2	Volunteer	Montgomery	100%	3 of 3	16.4 h	2 days
681	PerkasieCKZ	93.0	Airport	Bucks	93.2%	470 of 504	10 min	4.3 h
681	ShamokinN79	93.0	Airport	Northumberland	93.2%	470 of 504	10 min	4.3 h
683	CoatesvilleMQS	93.0	Airport	Chester	93.0%	469 of 504	10 min	4.3 h
684	Thomasville/YorkTHV	92.7	Airport	York	83.3%	140 of 168	12 min	3 h
685	Avondale 2 N03761	92.4	Reference	Chester	100%	67 of 67	1.5 h	3.1 h
686	Du Bois (AWOS)DUJ	92.3	Airport	Jefferson	79.4%	182 of 229	12 min	2 h
687	West ChesterOQN	92.2	Airport	Chester	92.4%	466 of 504	10 min	4.7 h
688	WellsboroN38	92.2	Airport	Tioga	91.2%	460 of 504	10 min	4.3 h
689	CLGP1CLGP1	92.2	DCP	-	78.5%	11 of 14	12 min	36 h
690	PBWP1PBWP1	92.2	DCP	-	78.5%	11 of 14	13 min	36 h
691	BDWP1BDWP1	92.2	DCP	-	78.5%	11 of 14	15 min	36 h
692	USCP1USCP1	92.2	DCP	-	78.5%	11 of 14	18 min	36 h
693	PHSP1PHSP1	92.2	DCP	-	78.5%	11 of 14	19 min	36 h
694	Erie - 9063038EREP1	91.6	Gauge	Erie	85.6%	719 of 840	23 min	42 min
695	Delaware River AT Port JervisMTMP1	91.5	Gauge	Pike	88.3%	198 of 224	31 min	60 min
696	CowansvilleWFTP1	91.4	Gauge	Armstrong	99.4%	167 of 168	50 min	2 h
697	HillmanBKTP1	91.3	Gauge	Indiana	99.4%	167 of 168	51 min	2 h
697	CooksburgCKFP1	91.3	Gauge	Clarion	99.4%	167 of 168	51 min	2 h
697	BrockwayMDRP1	91.3	Gauge	Jefferson	99.4%	167 of 168	51 min	2 h
700	Monongahela River AT MaxwellMAXP1	91.3	Gauge	Fayette	91.0%	153 of 168	21 min	8 h
701	UOPP1UOPP1	91.3	DCP	-	78.5%	11 of 14	22 min	2 days
702	Wilkes-Barre/ScrantonAVP	91.0	Airport	Luzerne	74.8%	193 of 258	11 min	2 h
703	Indiana/Stewart FldIDI	90.9	Airport	Westmoreland	89.8%	453 of 504	10 min	5.3 h
704	Delaware River AT New Hope-LambertvilleNHPP1	90.9	Gauge	Bucks	88.1%	592 of 672	25 min	75 min
705	New HollandNHDP1	90.8	Cooperative	Lancaster	85.7%	6 of 7	10.8 h	44.1 h
706	Mahantango Ck ScanMHCP1	90.3	Gauge	Schuylkill	95.2%	160 of 168	41 min	5 h
706	Rock Springs Pa ScanRSPP1	90.3	Gauge	Centre	95.2%	160 of 168	41 min	5 h
708	ReedsvilleRVL	90.1	Airport	Mifflin	90.2%	455 of 504	10 min	4.3 h
709	Mt PoconoMPO	90.0	Airport	Monroe	72.4%	197 of 272	12 min	1.7 h
710	CONNOQUENESSING CREEK AT ButlerBTRP1	89.9	Gauge	Butler	83.5%	183 of 219	30 min	63 min
710	Graysville 2ESEGRYP1	89.9	Gauge	Greene	83.5%	183 of 219	30 min	63 min
710	Guys MillsGUYP1	89.9	Gauge	Crawford	83.5%	183 of 219	30 min	63 min
713	Lackawanna River AT Stillwater DamSTIP1	89.9	Gauge	Susquehanna	83.4%	187 of 224	30 min	2 h
714	Harleysville 3.9 WNWPA-MT-87	89.7	Volunteer	Montgomery	100%	3 of 3	25.4 h	24 h
715	Langhorne 2.8 NEPA-BK-18	89.7	Volunteer	Bucks	100%	3 of 3	26.4 h	24 h
716	AnnandaleANAP1	89.7	Gauge	Butler	92.8%	156 of 168	30 min	9 h
717	Allentown-BethlehemABE	89.7	Airport	Lehigh	88.1%	148 of 168	12 min	13.2 h
718	CNGP1CNGP1	89.7	DCP	-	71.4%	10 of 14	20 min	36 h
719	Altoona 2ALOP1	89.7	Cooperative	Blair	71.4%	5 of 7	9 min	3 days
720	WarrenWRRP1	89.7	Cooperative	Warren	71.4%	5 of 7	19 min	2.5 days
721	Tunkhannock - Wyoming County EOCWYOP1	89.7	Cooperative	Wyoming	71.4%	5 of 7	29 min	36.1 h
722	Blue Marsh LakePLVP1	89.7	Cooperative	Berks	71.4%	5 of 7	49 min	36.6 h
723	Wellsboro 4 SWWLLP1	89.7	Cooperative	Tioga	71.4%	5 of 7	2.1 h	2.5 days
724	PottsvilleZER	89.5	Airport	Schuylkill	97.4%	491 of 504	10 min	2.7 h
725	Cowanesque River AT CowanesqueCOWP1	89.4	Gauge	Tioga	82.1%	184 of 224	30 min	2 h
726	Crooked Creek AT Middlebury CenterMBYP1	89.4	Gauge	Tioga	82.1%	184 of 224	30 min	63 min
727	First Fork Sinnemahoning AT Stevenson DamSTVP1	89.4	Gauge	Cameron	82.1%	184 of 224	30 min	2 h
728	Sewage PlantLOKP1	89.4	Cooperative	Clinton	71.4%	5 of 7	3 h	37.1 h
729	Johnstown/CambriaJST	89.3	Airport	Cambria	70.9%	193 of 272	11 min	2 h
730	LITTLE SHENANGO RIVER 1 NE GreenvilleGNVP1	89.0	Gauge	Mercer	82.7%	139 of 168	16 min	9 h
731	Frankfort SpringsFFSP1	88.9	Gauge	Beaver	97.6%	164 of 168	61 min	2 h
732	Pottstown Limerick AirportPTW	88.4	Airport	Chester	85.7%	144 of 168	11 min	21.5 h
733	Media 3.1 WNWPA-DL-20	88.0	Volunteer	Delaware	66.6%	2 of 3	26 min	37.1 h
733	North East 1.3 SSWPA-ER-24	88.0	Volunteer	Erie	66.6%	2 of 3	26 min	37.1 h
735	Sayre 2.8 WNWPA-BF-14	88.0	Volunteer	Bradford	66.6%	2 of 3	26 min	2 days
736	Lancaster 3.9 NPA-LN-27	88.0	Volunteer	Lancaster	66.6%	2 of 3	26 min	2 days
737	Palmyra 0.6 NWPA-LB-30	88.0	Volunteer	Lebanon	66.6%	2 of 3	86 min	37.1 h
738	Boalsburg 0.4 EPA-CN-13	88.0	Volunteer	Centre	66.6%	2 of 3	86 min	36.1 h
739	Nazareth 1.1 WPA-NH-14	88.0	Volunteer	Northampton	66.6%	2 of 3	86 min	37.1 h
740	New Wilmington 0.3 WNWPA-LW-16	88.0	Volunteer	Lawrence	66.6%	2 of 3	86 min	37.1 h
741	York Springs 2.5 NPA-AD-81	88.0	Volunteer	Adams	66.6%	2 of 3	86 min	37.1 h
741	Bridgeville 0.9 NWPA-AL-124	88.0	Volunteer	Allegheny	66.6%	2 of 3	86 min	37.1 h
741	Haverford 1.7 WSWPA-DL-31	88.0	Volunteer	Delaware	66.6%	2 of 3	86 min	37.1 h
741	Seneca 0.7 NNEPA-VN-5	88.0	Volunteer	Venango	66.6%	2 of 3	86 min	37.1 h
745	Villanova 0.9 SWPA-DL-25	88.0	Volunteer	Delaware	66.6%	2 of 3	86 min	3 days
746	Orrtanna 2.5 NNEPA-AD-88	88.0	Volunteer	Adams	66.6%	2 of 3	86 min	35.1 h
747	Butler 6.3 SEPA-BT-64	88.0	Volunteer	Butler	66.6%	2 of 3	86 min	36.1 h
747	North East 2.0 SPA-ER-15	88.0	Volunteer	Erie	66.6%	2 of 3	86 min	36.1 h
747	Latrobe 5.4 SWPA-WT-71	88.0	Volunteer	Westmoreland	66.6%	2 of 3	86 min	36.1 h
750	Souderton 1.4 ENEPA-BK-55	88.0	Volunteer	Bucks	66.6%	2 of 3	86 min	2 days

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.