Live/247 Rank/Montana

Montana 24/7 Rank

Every station in Montana 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.

898 stations ranked29.5% sent every report dueranked October 4, 2026page 1 of 4Montana instrumentsMontana 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 898 ranked here, 892 have a page of their own; the rest are platforms heard here that have not yet reported enough to be listed.

Every ranked station, first to last

1stLast

Each rank wears its colour: first in its state in bright green, last in deep red, and every rank between mixed along the band.

How they reported this week

The days behind it

7 days30 days90 days

every report90 to 99%under 90%

Every station, ranked

Rank	Station	Score	Network	County	Received	Reports	Arrives in	Longest silence
1	Cut Bank (AWOS)CTB	99.2	Airport	Glacier	100%	168 of 168	5 min	60 min
2	Glasgow INTL ArptGGW	99.2	Airport	Valley	98.8%	166 of 168	8 min	3 h
3	Glendive(AWOS)GDV	99.0	Airport	Prairie	100%	168 of 168	5 min	60 min
4	Billings/Logan INTLBIL	98.9	Airport	Yellowstone	99.4%	167 of 168	8 min	2 h
5	Dillon AirportDLN	98.3	Airport	Beaverhead	99.4%	167 of 168	8 min	2 h
5	Miles CityMLS	98.3	Airport	Custer	99.4%	167 of 168	8 min	2 h
5	Missoula/Bell FieldMSO	98.3	Airport	Missoula	99.4%	167 of 168	8 min	2 h
8	HavreHVR	98.2	Airport	Hill	99.4%	167 of 168	8 min	2 h
9	ShelbySBX	98.2	Airport	Toole	98.6%	497 of 504	6 min	85 min
10	Plentywood Sher-WoodPWD	98.1	Airport	Sheridan	99.2%	500 of 504	10 min	60 min
11	Sidney-RichlandSDY	98.0	Airport	Richland	100%	168 of 168	5 min	60 min
12	BakerBHK	97.8	Airport	Fallon	99.4%	167 of 168	10 min	2 h
13	HamiltonHRF	97.8	Airport	Ravalli	99.2%	500 of 504	6 min	60 min
14	Twin BridgesRVF	97.8	Airport	Madison	99.2%	500 of 504	6 min	60 min
15	West YellowstoneWYS	97.8	Airport	Fremont	99.2%	500 of 504	10 min	60 min
16	KalispellGPI	97.7	Airport	Flathead	100%	168 of 168	6 min	60 min
17	Big Horn County00U	97.7	Airport	Big Horn	99.2%	500 of 504	6 min	60 min
18	Scobey9S2	97.4	Airport	Daniels	99.2%	500 of 504	6 min	60 min
19	Great Falls INTLGTF	97.3	Airport	Cascade	99.4%	167 of 168	8 min	2 h
20	Kilo1KM	97.1	Airport	Wheatland	99.4%	167 of 168	16 min	1.6 h
21	PoplarPO1	96.9	Airport	Roosevelt	98.4%	496 of 504	11 min	75 min
22	Livingston/MissionLVM	96.8	Airport	Park	100%	168 of 168	8 min	60 min
23	Cannonball CkCACM8	96.6	Gauge	Fallon	99.4%	167 of 168	17 min	2 h
24	Bozeman/GallatinBZN	96.3	Airport	Gallatin	100%	168 of 168	5 min	60 min
25	Soda Springs RAWSSDAM8	96.3	Gauge	Yellowstone	99.4%	167 of 168	16 min	2 h
26	Golf1GM	96.2	Airport	Lewis and Clark	98.8%	166 of 168	16 min	2 h
27	Dillon AirportDLN	96.1	Gauge	Beaverhead	100%	14 of 14	47 min	12 h
27	Great Falls AirportGTF	96.1	Gauge	Cascade	100%	14 of 14	47 min	12 h
27	Helena AP ASOSHLN	96.1	Gauge	Lewis & Clark	100%	14 of 14	47 min	12 h
27	Harve AirportHVR	96.1	Gauge	Hill	100%	14 of 14	47 min	12 h
31	EnnisENSM8	96.1	Cooperative	Madison	100%	7 of 7	5 min	24 h
32	Kalispell 9 NNEKSPM8	96.1	Cooperative	Flathead	100%	7 of 7	6 min	24 h
33	BillingsBYZ	96.1	Cooperative	Yellowstone	100%	7 of 7	6 min	24 h
34	Mystic LakeMYSM8	96.1	Cooperative	Stillwater	100%	7 of 7	15 min	24 h
35	Brady 27 ENEKNEM8	96.1	Cooperative	Chouteau	100%	7 of 7	15 min	24 h
35	Huntley Experiment STNSBRM8	96.1	Cooperative	Yellowstone	100%	7 of 7	15 min	24 h
37	Ingomar 14 NeINEM8	96.1	Cooperative	Rosebud	100%	7 of 7	15 min	24 h
37	Ryegate 18 NNWRYGM8	96.1	Cooperative	Golden Valley	100%	7 of 7	15 min	24 h
39	Lolo Hot SpringsLHSM8	96.1	Cooperative	Missoula	100%	7 of 7	18 min	24.7 h
40	ChinookCNKM8	96.1	Cooperative	Blaine	100%	7 of 7	20 min	24.8 h
41	Pompeys Pillar 18 NPMPM8	96.1	Cooperative	Yellowstone	100%	7 of 7	25 min	24 h
42	Bozeman Montana State UnivBZEM8	96.1	Cooperative	Gallatin	100%	7 of 7	25 min	24 h
43	MaltaMLAM8	96.1	Cooperative	Phillips	100%	7 of 7	25 min	25 h
44	PlevnaPLEM8	96.1	Cooperative	Fallon	100%	7 of 7	26 min	26.5 h
45	Yaak 9NNEYAKM8	96.1	Cooperative	Lincoln	100%	7 of 7	27 min	25.2 h
46	Holter DamHLTM8	96.1	Cooperative	Lewis & Clark	100%	7 of 7	35 min	24 h
47	Libby Dam (Base)LIBM8	96.1	Cooperative	Lincoln	100%	7 of 7	35 min	24 h
48	GlendiveGNDM8	96.1	Cooperative	Dawson	100%	7 of 7	35 min	24 h
49	Dunkirk 19NNEDVNM8	96.1	Cooperative	Toole	100%	7 of 7	35 min	24 h
50	Fort BentonFTBM8	96.1	Cooperative	Chouteau	100%	7 of 7	44 min	24 h
51	Bozeman 6 W Exp FarmBZMM8	96.1	Cooperative	Gallatin	100%	7 of 7	45 min	24 h
52	Dillon WmceDLLM8	96.1	Cooperative	Beaverhead	100%	7 of 7	64 min	24 h
53	Billings Water PlantBWPM8	96.1	Cooperative	Yellowstone	100%	7 of 7	64 min	24 h
54	Great Falls MtTFX	96.1	Cooperative	Cascade	100%	7 of 7	76 min	24 h
55	Chinook 11SCIKM8	96.1	Gauge	Blaine	100%	7 of 7	1.8 h	24 h
56	Bigfork 3.2 ENEMT-FH-16	96.1	Volunteer	Flathead	100%	3 of 3	26 min	24 h
56	Kalispell 6.8 WSWMT-FH-38	96.1	Volunteer	Flathead	100%	3 of 3	26 min	24 h
56	Volborg 17.7 SWMT-PR-16	96.1	Volunteer	Powder River	100%	3 of 3	26 min	24 h
59	Whitefish 2.2 NEMT-FH-11	96.1	Volunteer	Flathead	100%	3 of 3	26 min	25 h
60	Geraldine 12.0 EMT-CH-6	96.1	Volunteer	Chouteau	100%	3 of 3	26 min	26 h
61	Anaconda 7.4 NWMT-DL-1	96.1	Volunteer	Deer Lodge	100%	3 of 3	26 min	24 h
61	Marion 1.1 SEMT-FH-12	96.1	Volunteer	Flathead	100%	3 of 3	26 min	24 h
61	Kalispell 2.6 NEMT-FH-29	96.1	Volunteer	Flathead	100%	3 of 3	26 min	24 h
61	Helena 10.6 NMT-LC-4	96.1	Volunteer	Lewis and Clark	100%	3 of 3	26 min	24 h
61	Missoula 4.4 WMT-MS-14	96.1	Volunteer	Missoula	100%	3 of 3	26 min	24 h
61	Livingston 6.6 ESEMT-PK-7	96.1	Volunteer	Park	100%	3 of 3	26 min	24 h
61	Hamilton 3.7 SEMT-RV-16	96.1	Volunteer	Ravalli	100%	3 of 3	26 min	24 h
61	Thompson Falls 9.3 NWMT-SN-4	96.1	Volunteer	Sanders	100%	3 of 3	26 min	24 h
61	Sunburst 3.4 SEMT-TL-4	96.1	Volunteer	Toole	100%	3 of 3	26 min	24 h
61	Billings 3.2 NNEMT-YS-27	96.1	Volunteer	Yellowstone	100%	3 of 3	26 min	24 h
71	Scobey 3.1 ESEMT-DN-5	96.1	Volunteer	Daniels	100%	3 of 3	26 min	24 h
71	Chester 15.6 NMT-LY-10	96.1	Volunteer	Liberty	100%	3 of 3	26 min	24 h
71	Brockton 11.6 NMT-RT-3	96.1	Volunteer	Roosevelt	100%	3 of 3	26 min	24 h
74	Tiber 2.2 NNEMT-LY-35	96.1	Volunteer	Liberty	100%	3 of 3	85 min	24 h
75	Hardin 0.6 ENEMT-BH-2	96.1	Volunteer	Big Horn	100%	3 of 3	86 min	25 h
76	Glendive 16.9 WSWMT-DW-2	96.1	Volunteer	Dawson	100%	3 of 3	86 min	24 h
77	Red Lodge 3.0 SWMT-CB-5	96.1	Volunteer	Carbon	100%	3 of 3	86 min	25 h
78	Ashland 9.7 ESEMT-PR-6	96.1	Volunteer	Powder River	100%	3 of 3	86 min	26 h
79	Kalispell 10.1 SWMT-FH-2	96.1	Volunteer	Flathead	100%	3 of 3	86 min	24 h
79	Plains 5.2 NMT-SN-5	96.1	Volunteer	Sanders	100%	3 of 3	86 min	24 h
81	Columbia Falls 7.7 SMT-FH-17	96.1	Volunteer	Flathead	100%	3 of 3	86 min	25 h
81	Park City 6.0 WSWMT-SW-12	96.1	Volunteer	Stillwater	100%	3 of 3	86 min	25 h
83	Dutton 3.3 ENEMT-TN-3	96.1	Volunteer	Teton	100%	3 of 3	86 min	24 h
84	Helena 2.0 NNWMT-LC-14	96.1	Volunteer	Lewis and Clark	100%	3 of 3	86 min	25 h
85	Fort Smith 0.5 ENEMT-BH-6	96.1	Volunteer	Big Horn	100%	3 of 3	86 min	24 h
85	Whitlash 13.5 EMT-LY-19	96.1	Volunteer	Liberty	100%	3 of 3	86 min	24 h
85	Missoula 2.9 EMT-MS-36	96.1	Volunteer	Missoula	100%	3 of 3	86 min	24 h
85	Trout Creek 4.0 NNWMT-SN-6	96.1	Volunteer	Sanders	100%	3 of 3	86 min	24 h
85	Nashua 0.3 NMT-VL-5	96.1	Volunteer	Valley	100%	3 of 3	86 min	24 h
90	Outlook 5.6 WNWMT-SH-3	96.1	Volunteer	Sheridan	100%	3 of 3	86 min	2 days
91	Seeley Lake 1.2 EMT-MS-26	96.1	Volunteer	Missoula	100%	3 of 3	86 min	28 h
92	Dillon 5.3 ENEMT-BV-2	96.1	Volunteer	Beaverhead	100%	3 of 3	2.4 h	24 h
92	Whitefish 4.9 WMT-FH-40	96.1	Volunteer	Flathead	100%	3 of 3	2.4 h	24 h
92	Roundup 0.6 NWMT-MH-23	96.1	Volunteer	Musselshell	100%	3 of 3	2.4 h	24 h
95	Bigfork 3.5 ESEMT-LK-15	96.1	Volunteer	Lake	100%	3 of 3	2.4 h	24 h
96	Ismay 3.4 NEMT-CS-11	96.1	Volunteer	Custer	100%	3 of 3	2.4 h	24 h
97	Ronan 4.1 NEMT-LK-10	96.1	Volunteer	Lake	100%	3 of 3	2.4 h	24 h
98	Livingston 0.9 WSWMT-PK-14	96.1	Volunteer	Park	100%	3 of 3	2.4 h	24 h
99	Hebgen Lake RAWSHBRM8	96.0	Gauge	Gallatin	99.4%	167 of 168	18 min	2 h
100	St. Regis RAWSSTGM8	95.9	Gauge	Mineral	100%	168 of 168	15 min	60 min
101	Frenchman Creek 22 NE WhitewaterFREM8	95.8	Gauge	Phillips	100%	168 of 168	12 min	60 min
102	TONGUE RIVER 21 N Ashland/Brandenberg BridgeASLM8	95.8	Gauge	Rosebud	100%	168 of 168	12 min	75 min
103	Boorman RAWSBOOM8	95.8	Gauge	Flathead	100%	168 of 168	12 min	60 min
103	Eureka RAWSEURM8	95.8	Gauge	Lincoln	100%	168 of 168	12 min	60 min
103	Beaver Creek 13 SW SacoGSCM8	95.8	Gauge	Phillips	100%	168 of 168	12 min	60 min
103	LomaLOMM8	95.8	Gauge	Chouteau	100%	168 of 168	12 min	60 min
103	Philipsburg RAWSPHGM8	95.8	Gauge	Granite	100%	168 of 168	12 min	60 min
103	Smith River 25 NNW Fort Logan below Eagle CreekSMHM8	95.8	Gauge	Meagher	100%	168 of 168	12 min	60 min
103	Timbercrest RAWSTCTM8	95.8	Gauge	Carbon	100%	168 of 168	12 min	60 min
110	Libby 1NELBYM8	95.8	Gauge	Lincoln	100%	168 of 168	12 min	75 min
110	Lolo Hot Springs 2NELOLM8	95.8	Gauge	Missoula	100%	168 of 168	12 min	75 min
110	OvandoOVNM8	95.8	Gauge	Powell	100%	168 of 168	12 min	75 min
110	PolebridgePOLM8	95.8	Gauge	Flathead	100%	168 of 168	12 min	75 min
110	Whitehorse Canal Near SilesiaWHCM8	95.8	Gauge	Carbon	100%	168 of 168	12 min	75 min
115	Plains RAWSPLAM8	95.8	Gauge	Sanders	99.4%	167 of 168	20 min	2 h
116	Rudyard 21NRDYM8	95.7	Cooperative	Hill	100%	7 of 7	3.4 h	24 h
117	Libby 17N - Big Creek Baldy RAWSBIFM8	95.6	Gauge	Lincoln	100%	168 of 168	13 min	60 min
117	Stevensville RAWS NearSTVM8	95.6	Gauge	Ravalli	100%	168 of 168	13 min	60 min
117	West Fork RAWSWSFM8	95.6	Gauge	Ravalli	100%	168 of 168	13 min	60 min
120	Elkhorn RAWSEKHM8	95.6	Gauge	Broadwater	100%	168 of 168	13 min	68 min
120	Ekalaka IwosEKIM8	95.6	Gauge	Carter	100%	168 of 168	13 min	68 min
120	Steele Creek RAWSSLCM8	95.6	Gauge	Beaverhead	100%	168 of 168	13 min	68 min
120	White Sulphur SpringsWSSM8	95.6	Gauge	Meagher	100%	168 of 168	13 min	68 min
124	Hungry Horse RAWSHNYM8	95.6	Gauge	Flathead	100%	168 of 168	16 min	60 min
125	Gardner River AT MammothGDRM8	95.6	Gauge	Unknown MTC113	99.4%	167 of 168	12 min	2 h
125	HarknessHRKM8	95.6	Gauge	Beaverhead	99.4%	167 of 168	12 min	2 h
125	Porphyry Peak RAWSPHYM8	95.6	Gauge	Meagher	99.4%	167 of 168	12 min	2 h
128	Derby Mountain RAWSDBYM8	95.6	Gauge	Sweet Grass	99.4%	167 of 168	12 min	2 h
129	PlainsS34	95.6	Airport	Sanders	99.2%	500 of 504	6 min	60 min
130	Fisher RiverFIRM8	95.4	Gauge	Lincoln	100%	168 of 168	14 min	60 min
130	Lincoln RAWSLNCM8	95.4	Gauge	Lewis & Clark	100%	168 of 168	14 min	60 min
132	Polebridge RAWSPOEM8	95.4	Gauge	Flathead	100%	168 of 168	14 min	69 min
132	South Fork Judith RAWSSFJM8	95.4	Gauge	Judith Basin	100%	168 of 168	14 min	69 min
134	Yellow Mule RAWSYLWM8	95.4	Gauge	Gallatin	99.4%	167 of 168	13 min	2 h
135	Gibson LakeGDMM8	95.4	Gauge	Lewis & Clark	98.8%	166 of 168	12 min	2 h
135	Libby RAWSLBBM8	95.4	Gauge	Lincoln	98.8%	166 of 168	12 min	2 h
135	Lodge Creek 31 N HavreLGEM8	95.4	Gauge	Hill	98.8%	166 of 168	12 min	2 h
135	Silver Bow Creek At Silver Bow CreekOPPM8	95.4	Gauge	Deer Lodge	98.8%	166 of 168	12 min	2 h
135	Swan LakeSWLM8	95.4	Gauge	Lake	98.8%	166 of 168	12 min	2 h
140	BIGHORN RIVER 14 W St. XavierSTXM8	95.4	Gauge	Big Horn	98.8%	166 of 168	12 min	2 h
141	Jordan (RAMOS)JDN	95.4	Airport	Garfield	98.8%	166 of 168	12 min	2 h
142	Milk River 2 WNW HavreHVRM8	95.3	Gauge	Hill	100%	168 of 168	22 min	60 min
143	MaltaM75	95.3	Airport	Phillips	98.6%	497 of 504	11 min	85 min
144	Red RockRRDM8	95.2	Gauge	Beaverhead	100%	168 of 168	15 min	60 min
144	Thompson Falls RAWSTHAM8	95.2	Gauge	Sanders	100%	168 of 168	15 min	60 min
146	Seeley Lake RAWSSEEM8	95.2	Gauge	Powell	100%	168 of 168	15 min	60 min
146	West Glacier RAWSWGRM8	95.2	Gauge	Flathead	100%	168 of 168	15 min	60 min
148	Zortman MineALDM8	95.2	Gauge	Phillips	100%	168 of 168	15 min	60 min
148	Litl Bullwhacker Ck RAWSLBCM8	95.2	Gauge	Blaine	100%	168 of 168	15 min	60 min
150	Glasgow 14.6 NNEMT-VL-24	95.2	Volunteer	Valley	100%	3 of 3	4.4 h	24 h
151	Bonner-West Riverside 4.0 SEMT-MS-23	95.2	Volunteer	Missoula	100%	3 of 3	4.4 h	24 h
152	Ginger RAWSGINM8	95.2	Gauge	Broadwater	99.4%	167 of 168	14 min	2 h
152	Jette RAWSJETM8	95.2	Gauge	Lake	99.4%	167 of 168	14 min	2 h
154	Buffalo Rapids-Glendive AgrimetBRGM8	95.2	Gauge	Dawson	99.4%	167 of 168	21 min	1.8 h
155	Along Bluff CRKBLUM8	95.2	Gauge	Valley	98.8%	166 of 168	13 min	2 h
155	Bradshaw Ck RAWS NrBSHM8	95.2	Gauge	Powder River	98.8%	166 of 168	13 min	2 h
155	In King Coulee Along Ft. Peck RsvrKIGM8	95.2	Gauge	Valley	98.8%	166 of 168	13 min	2 h
155	Pine Hill RAWSPNHM8	95.2	Gauge	Wibaux	98.8%	166 of 168	13 min	2 h
159	Blackfeet Agrimet Nr Seville ColonyBFAM8	95.2	Gauge	Glacier	98.2%	165 of 168	12 min	1.8 h
159	Teton Rvr Wx Station Nr FarmingtonFRMM8	95.2	Gauge	Teton	98.2%	165 of 168	12 min	1.8 h
159	Goat Haunt MtnGTOM8	95.2	Gauge	Glacier	98.2%	165 of 168	12 min	1.8 h
159	Lower Musselshell Agrimet Station Nr MelLMMM8	95.2	Gauge	Musselshell	98.2%	165 of 168	12 min	1.8 h
159	Buffalo Rapids Terry Agrimet StationTWSM8	95.2	Gauge	Prairie	98.2%	165 of 168	12 min	1.8 h
159	West GlacierWGLM8	95.2	Gauge	Flathead	98.2%	165 of 168	12 min	1.8 h
165	Saco 6NE - Frenchman CreekFRCM8	95.2	Gauge	Phillips	98.2%	165 of 168	12 min	2 h
165	Yellowstone River AT ForsythFRYM8	95.2	Gauge	Rosebud	98.2%	165 of 168	12 min	2 h
165	Missouri River 3 SE Wolf Creek below Holter RsvrHTRM8	95.2	Gauge	Lewis & Clark	98.2%	165 of 168	12 min	2 h
165	Little Prickly Pear Creek AT Wolf CreekLPPM8	95.2	Gauge	Lewis & Clark	98.2%	165 of 168	12 min	2 h
165	Middle CreekMCRM8	95.2	Gauge	Gallatin	98.2%	165 of 168	12 min	2 h
165	Madison River 6 NE McAllister above Ennis LakeMRPM8	95.2	Gauge	Madison	98.2%	165 of 168	12 min	2 h
165	Ruby River 6 S Alder below Ruby RsvrRRBM8	95.2	Gauge	Madison	98.2%	165 of 168	12 min	2 h
165	Ruby River 9 S Alder above Ruby RsvrRRRM8	95.2	Gauge	Madison	98.2%	165 of 168	12 min	2 h
165	Soda Butte Creek AT Silver GateSBCM8	95.2	Gauge	Unknown MTC113	98.2%	165 of 168	12 min	2 h
165	Teton River 20 NW ChoteauTSFM8	95.2	Gauge	Teton	98.2%	165 of 168	12 min	2 h
165	Warm Springs Creek AtWSPM8	95.2	Gauge	Deer Lodge	98.2%	165 of 168	12 min	2 h
176	Musselshell River 1 WSW MosbyMSBM8	95.2	Gauge	Garfield	98.2%	165 of 168	12 min	2 h
177	SBRM8SBRM8	95.1	DCP	-	100%	7 of 7	4.6 h	24 h
178	Badger PeakBAFM8	95.0	Gauge	Rosebud	100%	168 of 168	16 min	61 min
179	St MarySRYM8	95.0	Gauge	Glacier	100%	168 of 168	16 min	60 min
180	Fielding RAWSFIEM8	95.0	Gauge	Flathead	99.4%	167 of 168	15 min	2 h
180	FishtailFSLM8	95.0	Gauge	Stillwater	99.4%	167 of 168	15 min	2 h
180	Obrien Ridge RAWSOBRM8	95.0	Gauge	Granite	99.4%	167 of 168	15 min	2 h
183	Tenmile Creek 3 N RiminiRIMM8	94.9	Gauge	Lewis & Clark	97.6%	164 of 168	12 min	2 h
184	Glasgow WfoGGWM8	94.9	Cooperative	Valley	96.4%	27 of 28	6 min	12 h
185	Gate Park Raws Near Choteau 35WswGPKM8	94.8	Gauge	Lewis & Clark	100%	168 of 168	17 min	60 min
185	St. Mary River 13 NE Babb International BoundarySMBM8	94.8	Gauge	Glacier	100%	168 of 168	17 min	60 min
187	Stillwater RAWSSTWM8	94.8	Gauge	Flathead	100%	168 of 168	17 min	62 min
188	Clarks Fork Of The Yellowstone 10 SW BelfryBFYM8	94.8	Gauge	Carbon	100%	168 of 168	17 min	2 h
188	ROCK CREEK 5 SW Red LodgeROKM8	94.8	Gauge	Carbon	100%	168 of 168	17 min	2 h
190	Big Hole River 15 NE WisdomBHDM8	94.8	Gauge	Deer Lodge	100%	168 of 168	17 min	60 min
190	Tongue River 7 NE BirneyBNYM8	94.8	Gauge	Rosebud	100%	168 of 168	17 min	60 min
190	Big Sandy Creek 7 WSW HavreBSMM8	94.8	Gauge	Hill	100%	168 of 168	17 min	60 min
190	TONGUE RIVER 8 NE DeckerDKRM8	94.8	Gauge	Big Horn	100%	168 of 168	17 min	60 min
190	Swiftcurrent Creek 11 SW Babb Many GlacierMGGM8	94.8	Gauge	Glacier	100%	168 of 168	17 min	60 min
190	Smith River 22 SE Fort LoganSFLM8	94.8	Gauge	Meagher	100%	168 of 168	17 min	60 min
190	Musselshell River 1 N ShawmutSHAM8	94.8	Gauge	Wheatland	100%	168 of 168	17 min	60 min
197	Bredette 4SE USCRNGOMM8	94.8	Gauge	Roosevelt	100%	168 of 168	17 min	62 min
197	Judith River Wma CRNJRWM8	94.8	Gauge	Judith Basin	100%	168 of 168	17 min	62 min
199	Bannack State ParkBSPM8	94.8	Gauge	Beaverhead	100%	168 of 168	17 min	70 min
199	St. MaryMRYM8	94.8	Gauge	Glacier	100%	168 of 168	17 min	70 min
201	Rock Creek 21 NW OpheimORHM8	94.8	Gauge	Valley	100%	168 of 168	17 min	75 min
202	Armells Ck RAWS NrARMM8	94.8	Gauge	Fergus	99.4%	167 of 168	16 min	2 h
202	Browning BfaBGRM8	94.8	Gauge	Glacier	99.4%	167 of 168	16 min	2 h
202	Dry Blood CRK RAWS NrDBCM8	94.8	Gauge	Petroleum	99.4%	167 of 168	16 min	2 h
202	Deep Creek RAWSDCRM8	94.8	Gauge	Glacier	99.4%	167 of 168	16 min	2 h
202	Miles City - Cow CreekMCCM8	94.8	Gauge	Rosebud	99.4%	167 of 168	16 min	2 h
202	Nning Corral DogtownMCDM8	94.8	Gauge	Phillips	99.4%	167 of 168	16 min	2 h
202	Pistol Creek RAWSPSTM8	94.8	Gauge	Lake	99.4%	167 of 168	16 min	2 h
202	Steamboat RAWSSTBM8	94.8	Gauge	Yellowstone	99.4%	167 of 168	16 min	2 h
210	Ronan RAWSRONM8	94.8	Gauge	Lake	99.4%	167 of 168	16 min	2 h
211	Burnt CreekBTKM8	94.8	Gauge	Madison	98.2%	165 of 168	14 min	2 h
212	Hot SpringsHOTM8	94.7	Gauge	Sanders	100%	168 of 168	12 min	60 min
213	Missouri River AT CascadeCASM8	94.7	Gauge	Cascade	100%	168 of 168	17 min	60 min
214	Tiber Dam 7.6 SMT-LY-28	94.7	Volunteer	Liberty	100%	3 of 3	5.4 h	24 h
215	Joplin 17.5 NMT-LY-15	94.7	Volunteer	Liberty	100%	3 of 3	5.4 h	24 h
216	Harlem - Alfalfa Valley Canal DiversionAVCM8	94.7	Gauge	Blaine	97.0%	163 of 168	12 min	2 h
216	HarlemFBKM8	94.7	Gauge	Blaine	97.0%	163 of 168	12 min	2 h
216	Little Prickly Pear Creek 10 E HelenaHVDM8	94.7	Gauge	Lewis & Clark	97.0%	163 of 168	12 min	2 h
216	Sun River 20 NNW AugustaPISM8	94.7	Gauge	Teton	97.0%	163 of 168	12 min	2 h
216	Paridise Valley Main DiversionPRVM8	94.7	Gauge	Blaine	97.0%	163 of 168	12 min	2 h
216	Zurich Main DiversionZRDM8	94.7	Gauge	Blaine	97.0%	163 of 168	12 min	2 h
222	Little Big Horn RAWSLBHM8	94.6	Gauge	Big Horn	100%	168 of 168	18 min	63 min
223	HornetCYFM8	94.6	Gauge	Flathead	100%	168 of 168	18 min	60 min
224	HarlowtonUMHM8	94.6	Gauge	Wheatland	100%	168 of 168	22 min	77 min
225	Knowlton RAWSKTFM8	94.6	Gauge	Custer	99.4%	167 of 168	17 min	2 h
226	Battle Creek 30 N ChinookBATM8	94.6	Gauge	Blaine	99.4%	167 of 168	17 min	2 h
226	Cut Bank Creek AT Cut BankCBKM8	94.6	Gauge	Glacier	99.4%	167 of 168	17 min	2 h
226	ClearwaterCLWM8	94.6	Gauge	Missoula	99.4%	167 of 168	17 min	2 h
226	DearbornDBOM8	94.6	Gauge	Lewis & Clark	99.4%	167 of 168	17 min	2 h
226	EssexESXM8	94.6	Gauge	Flathead	99.4%	167 of 168	17 min	2 h
226	Flathead River W Near PolsonFPOM8	94.6	Gauge	Lake	99.4%	167 of 168	17 min	2 h
226	Missouri River 3 S FrazerFRAM8	94.6	Gauge	Valley	99.4%	167 of 168	17 min	2 h
226	Deer Creek - Gallatin RiverGBSM8	94.6	Gauge	Gallatin	99.4%	167 of 168	17 min	2 h
226	Big Hole River 7 SE GlenGNLM8	94.6	Gauge	Madison	99.4%	167 of 168	17 min	2 h
226	Hyalite Creek 6 ESE Hyalite Creek near Hyalite RS nr Gallatin GaHCCM8	94.6	Gauge	Gallatin	99.4%	167 of 168	17 min	2 h
226	Hungry Horse DamHGHM8	94.6	Gauge	Flathead	99.4%	167 of 168	17 min	2 h
226	Judith River 6 SW UticaJRUM8	94.6	Gauge	Judith Basin	99.4%	167 of 168	17 min	2 h
226	Flathead Lake 5 WSW KERR DAM POLSONKERM8	94.6	Gauge	Lake	99.4%	167 of 168	17 min	2 h
226	Lost Creek Near GalenLCGM8	94.6	Gauge	Deer Lodge	99.4%	167 of 168	17 min	2 h
226	Big Spring Creek 2 NW Lewistown near R&B Trading PostLTPM8	94.6	Gauge	Fergus	99.4%	167 of 168	17 min	2 h
226	Bassoo Creek - Mill CreekMCNM8	94.6	Gauge	Sanders	99.4%	167 of 168	17 min	2 h
226	Rock Creek 15 SW Middle Fork Rock Cr.MFRM8	94.6	Gauge	Granite	99.4%	167 of 168	17 min	2 h
226	BIGHORN RIVER AT St. Xavier BridgeSXVM8	94.6	Gauge	Big Horn	99.4%	167 of 168	17 min	2 h
226	Eureka - Tobacco RiverTBAM8	94.6	Gauge	Lincoln	99.4%	167 of 168	17 min	2 h
226	Bighorn River AT Two Leggins BridgeTLBM8	94.6	Gauge	Big Horn	99.4%	167 of 168	17 min	2 h
226	Missouri River 6 E Great Falls-Flood RdULMM8	94.6	Gauge	Cascade	99.4%	167 of 168	17 min	2 h
247	FlatwillowFLWM8	94.5	Gauge	Petroleum	96.4%	162 of 168	12 min	2 h
248	Big Horn Mtn RAWSBHMM8	94.4	Gauge	Big Horn	100%	168 of 168	19 min	60 min
248	Fort Belknap AgencyFBLM8	94.4	Gauge	Blaine	100%	168 of 168	19 min	60 min
248	Pryor Mtn RAWSPMRM8	94.4	Gauge	Big Horn	100%	168 of 168	19 min	60 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.