Live/247 Rank/Maine

Maine 24/7 Rank

Every station in Maine 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.

312 stations ranked40.3% sent every report dueranked October 4, 2026page 1 of 2Maine instrumentsMaine 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 312 ranked here, 303 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	Clayton Lake40B	99.6	Airport	Aroostook	100%	168 of 168	5 min	60 min
2	Lincoln 5SWLNCM1	99.6	Cooperative	Penobscot	100%	7 of 7	17 min	25.1 h
3	West BuxtonHOLM1	99.6	Cooperative	York	100%	7 of 7	19 min	25 h
4	Bangor FssBGRM1	99.6	Cooperative	Penobscot	100%	7 of 7	19 min	24 h
4	Presque Isle HilltopPRQM1	99.6	Cooperative	Aroostook	100%	7 of 7	19 min	24 h
6	FarmingtonFARM1	99.6	Cooperative	Franklin	100%	7 of 7	19 min	23 h
7	Phillips 3PPSM1	99.6	Cooperative	Franklin	100%	7 of 7	19 min	25 h
8	BathBTHM1	99.6	Cooperative	Sagadahoc	100%	7 of 7	39 min	24.5 h
9	KingfieldKINM1	99.6	Cooperative	Franklin	100%	7 of 7	49 min	23.5 h
10	WinthropWTHM1	99.6	Cooperative	Kennebec	100%	7 of 7	49 min	24 h
11	RobbinstonROBM1	99.6	Cooperative	Washington	100%	7 of 7	49 min	24 h
12	New SharonNWSM1	99.6	Cooperative	Franklin	100%	7 of 7	58 min	24 h
13	Cape NeddickNEDM1	99.6	Cooperative	York	100%	7 of 7	69 min	24 h
14	Madison 4WMADM1	99.6	Cooperative	Somerset	100%	7 of 7	79 min	24 h
15	East SangervilleESGM1	99.6	Cooperative	Piscataquis	100%	7 of 7	1.6 h	24 h
15	OtisfieldOTFM1	99.6	Cooperative	Oxford	100%	7 of 7	1.6 h	24 h
17	TopsfieldTOPM1	99.6	Cooperative	Washington	100%	7 of 7	1.6 h	27 h
18	Churchill DamCHUM1	99.6	Cooperative	Piscataquis	100%	7 of 7	1.8 h	24 h
19	HartfordHRTM1	99.6	Cooperative	Oxford	100%	7 of 7	1.8 h	24 h
20	PITM1PITM1	99.6	DCP	-	100%	7 of 7	1.8 h	24 h
20	WBKM1WBKM1	99.6	DCP	-	100%	7 of 7	1.8 h	24 h
22	BGRM1BGRM1	99.6	DCP	-	100%	7 of 7	1.8 h	24 h
22	BTHM1BTHM1	99.6	DCP	-	100%	7 of 7	1.8 h	24 h
22	NWSM1NWSM1	99.6	DCP	-	100%	7 of 7	1.8 h	24 h
25	TurnerTURM1	99.6	Cooperative	Androscoggin	100%	7 of 7	2 h	24 h
26	West RockportWRKM1	99.6	Cooperative	Knox	100%	7 of 7	2.3 h	24 h
27	Greene 1.9 SME-AN-54	99.6	Volunteer	Androscoggin	100%	3 of 3	26 min	24 h
27	Presque Isle 1.3 WSWME-AR-15	99.6	Volunteer	Aroostook	100%	3 of 3	26 min	24 h
27	Gray 2.9 SSEME-CM-125	99.6	Volunteer	Cumberland	100%	3 of 3	26 min	24 h
27	Union 2.1 NNEME-KX-10	99.6	Volunteer	Knox	100%	3 of 3	26 min	24 h
27	Palmyra 3.5 NWME-SM-3	99.6	Volunteer	Somerset	100%	3 of 3	26 min	24 h
27	Palmyra 2.9 WSWME-SM-38	99.6	Volunteer	Somerset	100%	3 of 3	26 min	24 h
27	Liberty 2.6 WME-WL-36	99.6	Volunteer	Waldo	100%	3 of 3	26 min	24 h
27	Perry 3.8 NNWME-WS-34	99.6	Volunteer	Washington	100%	3 of 3	26 min	24 h
27	Hollis Center 5.4 NWME-YK-3	99.6	Volunteer	York	100%	3 of 3	26 min	24 h
36	Auburn 1.5 NNWME-AN-53	99.6	Volunteer	Androscoggin	100%	3 of 3	26 min	24 h
36	Portland 5.5 WNWME-CM-18	99.6	Volunteer	Cumberland	100%	3 of 3	26 min	24 h
36	Topsham 3.7 NEME-SG-16	99.6	Volunteer	Sagadahoc	100%	3 of 3	26 min	24 h
36	Cornish 5.6 ESEME-YK-67	99.6	Volunteer	York	100%	3 of 3	26 min	24 h
40	Manchester 0.5 NEME-KB-55	99.6	Volunteer	Kennebec	100%	3 of 3	26 min	25 h
40	Orono 0.1 ENEME-PN-60	99.6	Volunteer	Penobscot	100%	3 of 3	26 min	25 h
40	Prospect 2.6 WME-WL-27	99.6	Volunteer	Waldo	100%	3 of 3	26 min	25 h
43	Sebago 2.4 ESEME-CM-98	99.6	Volunteer	Cumberland	100%	3 of 3	26 min	26 h
44	Portland 5.1 NWME-CM-8	99.6	Volunteer	Cumberland	100%	3 of 3	85 min	24 h
45	Abbot 4.6 WNWME-PS-9	99.6	Volunteer	Piscataquis	100%	3 of 3	86 min	25 h
46	Portland 5.4 NWME-CM-143	99.6	Volunteer	Cumberland	100%	3 of 3	86 min	24 h
46	Wayne 3.2 SSEME-KB-10	99.6	Volunteer	Kennebec	100%	3 of 3	86 min	24 h
48	Milford 0.8 SSWME-PN-47	99.6	Volunteer	Penobscot	100%	3 of 3	86 min	25 h
48	Winterport 2.9 NME-WL-8	99.6	Volunteer	Waldo	100%	3 of 3	86 min	25 h
50	Presque Isle 4.2 SME-AR-28	99.6	Volunteer	Aroostook	100%	3 of 3	86 min	24 h
50	Harpswell 3.1 WSWME-CM-148	99.6	Volunteer	Cumberland	100%	3 of 3	86 min	24 h
50	Carrabassett 1.9 SSEME-FR-28	99.6	Volunteer	Franklin	100%	3 of 3	86 min	24 h
50	Winthrop 0.8 SME-KB-58	99.6	Volunteer	Kennebec	100%	3 of 3	86 min	24 h
50	Waldoboro 1.5 NNEME-LN-13	99.6	Volunteer	Lincoln	100%	3 of 3	86 min	24 h
50	Wiscasset 1.8 NNWME-LN-30	99.6	Volunteer	Lincoln	100%	3 of 3	86 min	24 h
50	Dresden 1.5 NWME-LN-4	99.6	Volunteer	Lincoln	100%	3 of 3	86 min	24 h
50	Bath 1.1 WSWME-SG-1	99.6	Volunteer	Sagadahoc	100%	3 of 3	86 min	24 h
50	Topsham 5.2 NME-SG-18	99.6	Volunteer	Sagadahoc	100%	3 of 3	86 min	24 h
50	North New Portland 0.3 WSWME-SM-10	99.6	Volunteer	Somerset	100%	3 of 3	86 min	24 h
50	Belfast 3.9 NNEME-WL-32	99.6	Volunteer	Waldo	100%	3 of 3	86 min	24 h
50	Eastport 1.4 ESEME-WS-31	99.6	Volunteer	Washington	100%	3 of 3	86 min	24 h
50	Biddeford 1.5 NNEME-YK-28	99.6	Volunteer	York	100%	3 of 3	86 min	24 h
50	York 4.7 NNWME-YK-63	99.6	Volunteer	York	100%	3 of 3	86 min	24 h
64	East SurryME-HN-2	99.6	Volunteer	Hancock	100%	3 of 3	86 min	26 h
65	Gorham 0.5 SSEME-CM-164	99.6	Volunteer	Cumberland	100%	3 of 3	86 min	24 h
65	Mariaville 1.4 ESEME-HN-4	99.6	Volunteer	Hancock	100%	3 of 3	86 min	24 h
65	Albion 0.1 NEME-KB-57	99.6	Volunteer	Kennebec	100%	3 of 3	86 min	24 h
65	ME-WL-38ME-WL-38	99.6	COCORAHS	-	100%	3 of 3	86 min	24 h
65	North Berwick 5.3 WME-YK-65	99.6	Volunteer	York	100%	3 of 3	86 min	24 h
70	Houlton 2.5 NNWME-AR-42	99.6	Volunteer	Aroostook	100%	3 of 3	86 min	24 h
70	Readfield 2.0 NNEME-KB-53	99.6	Volunteer	Kennebec	100%	3 of 3	86 min	24 h
72	Hermon 1.2 WME-PN-51	99.6	Volunteer	Penobscot	100%	3 of 3	2.4 h	24 h
73	New Sweden 4.9 NNWME-AR-18	99.6	Volunteer	Aroostook	100%	3 of 3	2.4 h	24 h
73	Castle Hill 1.0 SME-AR-41	99.6	Volunteer	Aroostook	100%	3 of 3	2.4 h	24 h
73	Trevett 0.3 NEME-LN-26	99.6	Volunteer	Lincoln	100%	3 of 3	2.4 h	24 h
73	Wells 3.5 SWME-YK-18	99.6	Volunteer	York	100%	3 of 3	2.4 h	24 h
73	Kennebunk 1.8 WNWME-YK-5	99.6	Volunteer	York	100%	3 of 3	2.4 h	24 h
78	Sullivan 2.4 SSEME-HN-58	99.6	Volunteer	Hancock	100%	3 of 3	2.4 h	25 h
78	Belmont 2.7 SSEME-WL-3	99.6	Volunteer	Waldo	100%	3 of 3	2.4 h	25 h
80	New Sharon 2.0 NWME-FR-4	99.6	Volunteer	Franklin	100%	3 of 3	2.4 h	24 h
81	GreenvilleGNR	99.5	Airport	Piscataquis	100%	168 of 168	9 min	65 min
82	Rockwood - Pittson FarmPSFM1	99.5	Gauge	Somerset	100%	168 of 168	11 min	70 min
83	Spencer Stream At Grand FallsSPEM1	99.5	Gauge	Somerset	100%	168 of 168	11 min	61 min
83	Aroostook River AT WashburnWSHM1	99.5	Gauge	Aroostook	100%	168 of 168	11 min	61 min
85	Caribou MunicipalCAR	99.5	Airport	Penobscot	99.4%	167 of 168	11 min	2 h
86	FrenchvilleFVE	99.5	Airport	Aroostook	99.4%	167 of 168	12 min	2 h
87	New SharonNESM1	99.4	Gauge	Franklin	100%	168 of 168	11 min	71 min
88	Moosehorn National Wildlife Refuge RAWSMWRM1	99.3	Gauge	Washington	100%	168 of 168	12 min	60 min
89	Jonesboro - McoopJONM1	99.3	Gauge	Washington	99.4%	167 of 168	11 min	1.8 h
90	Seboeis River AT Shin Pond - RiverSBSM1	99.3	Gauge	Penobscot	99.4%	167 of 168	11 min	2 h
91	HartfordHRTM1	99.2	Gauge	Oxford	99.4%	167 of 168	11 min	2 h
92	Hardwood Brook Near Caribou MaineHWBM1	99.2	Gauge	Aroostook	99.4%	167 of 168	11 min	1.9 h
93	Presque Isle (AWOS)PQI	99.2	Airport	Aroostook	98.8%	166 of 168	9 min	3 h
94	Auburn-LewistonLEW	99.1	Airport	Cumberland	100%	168 of 168	9 min	65 min
95	Harmony 3.0 SSEME-SM-17	99.1	Volunteer	Somerset	100%	3 of 3	3.4 h	24 h
96	Rockland 1.4 EME-KX-18	99.1	Volunteer	Knox	100%	3 of 3	3.4 h	24 h
96	Oxford 5.3 SWME-OX-26	99.1	Volunteer	Oxford	100%	3 of 3	3.4 h	24 h
96	Kittery Point 0.8 WSWME-YK-2	99.1	Volunteer	York	100%	3 of 3	3.4 h	24 h
99	Rangeley NEPPRNLM1	99.1	Gauge	Franklin	98.8%	166 of 168	11 min	2 h
99	West RockportWRKM1	99.1	Gauge	Knox	98.8%	166 of 168	11 min	2 h
101	Turner Brook RAWSTNBM1	99.0	Gauge	Somerset	99.4%	167 of 168	12 min	2 h
102	Isle Au Hart RAWSIAHM1	98.9	Gauge	Knox	99.4%	167 of 168	13 min	2 h
103	Estcourt Station MawsESCM1	98.8	Gauge	Aroostook	100%	168 of 168	14 min	75 min
103	Saint ZacharieSTZM1	98.8	Gauge	Somerset	100%	168 of 168	14 min	75 min
105	Limestone CRNLIZM1	98.5	Gauge	Aroostook	100%	168 of 168	16 min	65 min
105	Old Town 2WOLDM1	98.5	Gauge	Penobscot	100%	168 of 168	16 min	65 min
107	Bangor INTL ArptBGR	98.5	Airport	Hancock	97.1%	168 of 173	12 min	2 h
108	Saco River At CornishCNHM1	98.3	Gauge	Cumberland	99.4%	167 of 168	16 min	1.8 h
108	Precipitation Gage At KingsburyKNBM1	98.3	Gauge	Piscataquis	99.4%	167 of 168	16 min	1.8 h
108	Precipitation Gage ShirleySHRM1	98.3	Gauge	Piscataquis	99.4%	167 of 168	16 min	1.8 h
108	Westfield - NERONWFDM1	98.3	Gauge	Aroostook	99.4%	167 of 168	16 min	1.8 h
112	Androscoggin River AT AuburnAUBM1	98.3	Gauge	Androscoggin	99.4%	167 of 168	16 min	2 h
112	Williams Brook AT Williams Brook - RiverPHRM1	98.3	Gauge	Aroostook	99.4%	167 of 168	16 min	2 h
112	Stony Brook At East SebagoSBOM1	98.3	Gauge	Cumberland	99.4%	167 of 168	16 min	2 h
115	EastportEPOM1	98.3	Gauge	Washington	99.4%	167 of 168	16 min	1.8 h
115	Oxbow - McoopOXBM1	98.3	Gauge	Aroostook	99.4%	167 of 168	16 min	1.8 h
117	Fish River AT Fish River At Fort KentFIHM1	98.3	Gauge	Aroostook	99.4%	167 of 168	16 min	2 h
117	Lewy LakeLWYM1	98.3	Gauge	Washington	99.4%	167 of 168	16 min	2 h
119	Penobscot AT BangorBPRM1	98.3	Gauge	Penobscot	98.8%	166 of 168	15 min	2 h
120	Dixmont 4.5 NEME-PN-63	98.2	Volunteer	Penobscot	100%	3 of 3	5.4 h	24 h
121	Durham 0.8 SME-AN-46	98.2	Volunteer	Androscoggin	100%	3 of 3	5.4 h	24 h
122	Gardiner 3.5 WSWME-KB-63	98.2	Volunteer	Kennebec	100%	3 of 3	5.4 h	24 h
123	Lisbon 0.6 SME-AN-43	98.2	Volunteer	Androscoggin	100%	3 of 3	5.4 h	24 h
124	Surry 2.5 SSEME-HN-56	98.2	Volunteer	Hancock	100%	3 of 3	5.4 h	24 h
125	Kenduskeag StreamKENM1	98.2	Gauge	Penobscot	99.4%	167 of 168	16 min	1.8 h
125	Aroostook River AT MasardisMASM1	98.2	Gauge	Aroostook	99.4%	167 of 168	16 min	1.8 h
125	Mattawamkeag River 1 E MattawamkeagMATM1	98.2	Gauge	Aroostook	99.4%	167 of 168	16 min	1.8 h
125	Wytopitlock Stream 5 NNE Wytopitlock Stream - RiverWYTM1	98.2	Gauge	Aroostook	99.4%	167 of 168	16 min	1.8 h
129	Ducktrap River At LincolnvilleLINM1	98.2	Gauge	Waldo	99.4%	167 of 168	16 min	2 h
129	Little Androscoggin At South ParisSPSM1	98.2	Gauge	Oxford	99.4%	167 of 168	16 min	2 h
131	Otter CreekOTRM1	98.1	Gauge	Hancock	98.8%	166 of 168	15 min	2 h
132	DixmontDIXM1	98.1	Gauge	Penobscot	98.8%	166 of 168	16 min	1.8 h
132	Eagle LakeEGLM1	98.1	Gauge	Aroostook	98.8%	166 of 168	16 min	1.8 h
132	Kokadjo - McoopKKJM1	98.1	Gauge	Piscataquis	98.8%	166 of 168	16 min	1.8 h
132	Princeton - McoopPNNM1	98.1	Gauge	Washington	98.8%	166 of 168	16 min	1.8 h
136	Androscoggin River AT RumfordRMFM1	98.0	Gauge	Oxford	98.6%	663 of 672	16 min	45 min
137	Rachel Carson RAWSRCWM1	97.9	Gauge	York	100%	168 of 168	19 min	60 min
138	Danforth - McoopDANM1	97.9	Gauge	Washington	98.2%	165 of 168	16 min	1.8 h
139	Meduxnekeag River Above South BranchMXKM1	97.9	Gauge	Aroostook	98.2%	165 of 168	16 min	2 h
140	Hallowell - Kennebec RiverHALM1	97.8	Gauge	Kennebec	99.1%	666 of 672	16 min	50 min
141	Mechanic Falls 2.7 SME-AN-40	97.7	Volunteer	Androscoggin	100%	3 of 3	6.4 h	2 days
142	Kennebec River AT Bingham Wyman DamBNGM1	97.5	Gauge	Somerset	100%	336 of 336	21 min	31 min
142	Androscoggin At Gulf Island DamGLFM1	97.5	Gauge	Androscoggin	100%	336 of 336	21 min	31 min
142	Harris DamHARM1	97.5	Gauge	Somerset	100%	336 of 336	21 min	31 min
142	Saco River At Hiram FallsHIFM1	97.5	Gauge	Cumberland	100%	336 of 336	21 min	31 min
142	Dayton - Skelton DamSKLM1	97.5	Gauge	York	100%	336 of 336	21 min	31 min
142	Kennebec River AT SkowheganSKOM1	97.5	Gauge	Somerset	100%	336 of 336	21 min	31 min
142	Williams Dam At Solon MeSLNM1	97.5	Gauge	Somerset	100%	336 of 336	21 min	31 min
142	Saco River AT West BuxtonWBXM1	97.5	Gauge	York	100%	336 of 336	21 min	31 min
150	AbbotABBM1	97.5	Gauge	Piscataquis	100%	168 of 168	21 min	61 min
151	Piscataquis River AT Dover-foxcroftDOVM1	97.4	Gauge	Piscataquis	100%	168 of 168	21 min	60 min
152	Brassua LakeBRAM1	97.4	Gauge	Somerset	100%	168 of 168	21 min	61 min
153	Moosehead LakeRKWM1	97.4	Gauge	Piscataquis	100%	168 of 168	21 min	61 min
154	St John River AT Fort KentFTKM1	97.4	Gauge	Aroostook	99.4%	167 of 168	20 min	2 h
155	Dolby DamDLBM1	97.3	Gauge	Penobscot	100%	336 of 336	22 min	32 min
156	Northport 0.7 NEME-WL-35	97.3	Volunteer	Waldo	100%	3 of 3	7.4 h	24 h
157	Kingsbury Stream AT Abbot Village - RiverABTM1	97.3	Gauge	Piscataquis	99.4%	167 of 168	21 min	2 h
157	Austin Stream At BinghamAUSM1	97.3	Gauge	Somerset	99.4%	167 of 168	21 min	2 h
157	Piscataquis River AT BlanchardBLAM1	97.3	Gauge	Piscataquis	99.4%	167 of 168	21 min	2 h
157	Black StreamBSTM1	97.3	Gauge	Piscataquis	99.4%	167 of 168	21 min	2 h
157	Penobscot River AT EddingtonEDDM1	97.3	Gauge	Penobscot	99.4%	167 of 168	21 min	2 h
157	Little Madawaska River 1 N Little Madawaska - RiverLMRM1	97.3	Gauge	Aroostook	99.4%	167 of 168	21 min	2 h
157	Pearce Brook 1 S Pearce Brook - RiverPEAM1	97.3	Gauge	Aroostook	99.4%	167 of 168	21 min	2 h
157	Penobscot River AT West EnfieldWENM1	97.3	Gauge	Penobscot	99.4%	167 of 168	21 min	2 h
157	Old Stream AT Old Stream - RiverWSLM1	97.3	Gauge	Washington	99.4%	167 of 168	21 min	2 h
157	Yarmouth - Royal RiverYARM1	97.3	Gauge	Cumberland	99.4%	167 of 168	21 min	2 h
167	Wells - Webhannett RiverWEBM1	97.2	Gauge	York	96.4%	162 of 168	16 min	2 h
168	Eustis - Flagstaff LakeFLGM1	97.2	Gauge	Somerset	96.4%	162 of 168	16 min	3 h
169	Narraguagus River AT Cherryfield - RiverCFDM1	97.1	Gauge	Washington	98.8%	166 of 168	20 min	2 h
169	Grand Lake Stream AT Grand Lake Stream - RiverGLSM1	97.1	Gauge	Washington	98.8%	166 of 168	20 min	2 h
169	West Grand LakeWGLM1	97.1	Gauge	Washington	98.8%	166 of 168	20 min	2 h
172	Fox BrookFOXM1	97.1	Gauge	Aroostook	98.8%	166 of 168	21 min	2 h
172	Libby Brook AT Libby Brook - RiverLIBM1	97.1	Gauge	Washington	98.8%	166 of 168	21 min	2 h
172	Ellis River At South AndoverSADM1	97.1	Gauge	Oxford	98.8%	166 of 168	21 min	2 h
172	Sebec - Sebec RiverSECM1	97.1	Gauge	Piscataquis	98.8%	166 of 168	21 min	2 h
176	Allagash River AT AllagashALLM1	97.0	Gauge	Aroostook	98.8%	166 of 168	21 min	2 h
176	Big Black River AT Big BlackBBRM1	97.0	Gauge	Aroostook	98.8%	166 of 168	21 min	2 h
178	Hadley Lakes Ground Water WellHWWM1	96.9	Gauge	Washington	98.2%	165 of 168	20 min	2 h
179	Wild River At GileadGILM1	96.9	Gauge	Oxford	98.0%	659 of 672	16 min	60 min
180	East SurryESUM1	96.6	Cooperative	Hancock	100%	7 of 7	8.8 h	24 h
181	Smith BrookSMBM1	96.6	Gauge	Piscataquis	98.8%	166 of 168	23 min	2 h
182	Meduxnekeag River At Lowery RoadMXLM1	96.5	Gauge	Aroostook	100%	168 of 168	26 min	76 min
183	Canada Falls Lake - SB Penobscot RiverGDFM1	96.4	Gauge	Somerset	98.3%	661 of 672	15 min	75 min
184	St Croix River AT Baring - RiverBARM1	96.4	Gauge	Washington	98.3%	661 of 672	15 min	75 min
185	Caratunk - Dead RiverDEDM1	96.4	Gauge	Somerset	98.3%	661 of 672	15 min	75 min
186	KennebunkKNKM1	96.3	Gauge	York	99.4%	167 of 168	26 min	2 h
186	Kennebec River Near MadisonMDSM1	96.3	Gauge	Somerset	99.4%	167 of 168	26 min	2 h
186	Penobscot River At Comstock TownshipSBMM1	96.3	Gauge	Somerset	99.4%	167 of 168	26 min	2 h
189	Acadia National Park RAWSANPM1	96.2	Gauge	Hancock	98.8%	166 of 168	13 min	2 h
190	Cobbosseecontee Stream At GardinerGDRM1	96.1	Gauge	Kennebec	98.8%	166 of 168	26 min	2 h
190	Matagamon - EB PenobscatGLMM1	96.1	Gauge	Penobscot	98.8%	166 of 168	26 min	2 h
190	Branch Brook Near KennebunkKBKM1	96.1	Gauge	York	98.8%	166 of 168	26 min	2 h
190	Piscataquis River AT MedfordMFDM1	96.1	Gauge	Piscataquis	98.8%	166 of 168	26 min	2 h
190	Mousam River At Route 4 Near SanfordMOUM1	96.1	Gauge	York	98.8%	166 of 168	26 min	2 h
190	Sheepscot River At North WhitefieldNWFM1	96.1	Gauge	Lincoln	98.8%	166 of 168	26 min	2 h
190	OquossocOQOM1	96.1	Gauge	Franklin	98.8%	166 of 168	26 min	2 h
190	Kennebec River AT North SidneySIDM1	96.1	Gauge	Kennebec	98.8%	166 of 168	26 min	2 h
190	StandishSTDM1	96.1	Gauge	Cumberland	98.8%	166 of 168	26 min	2 h
190	Mousam River Near West KennebunkWKBM1	96.1	Gauge	York	98.8%	166 of 168	26 min	2 h
200	Carrabassett River 3 WNW North AnsonNANM1	96.0	Gauge	Somerset	95.8%	161 of 168	21 min	2 h
201	Kennebec River At GardinerGIRM1	96.0	Gauge	Kennebec	95.8%	161 of 168	21 min	2 h
201	MadridMDIM1	96.0	Gauge	Franklin	95.8%	161 of 168	21 min	2 h
201	Wells NERRWQQM1	96.0	Gauge	York	95.8%	161 of 168	21 min	2 h
204	Farmington 4.2 NWME-FR-23	95.9	Volunteer	Franklin	100%	3 of 3	10.4 h	24 h
205	Kennebec River At BinghamBINM1	95.9	Gauge	Somerset	98.2%	165 of 168	26 min	2 h
206	Kennebec River AT AugustaASTM1	95.8	Gauge	Kennebec	99.0%	832 of 840	15 min	78 min
207	AthensATHM1	95.8	Gauge	Somerset	95.2%	160 of 168	21 min	2 h
208	Saco - Saco River near Camp EllisCPEM1	95.7	Gauge	York	98.6%	829 of 840	15 min	78 min
209	Waterville (AWOS)WVL	95.7	Airport	Kennebec	88.8%	175 of 197	9 min	65 min
210	St John River AT Nine Mile BridgeNINM1	95.5	Gauge	Aroostook	100%	168 of 168	31 min	61 min
211	St Croix River AT Vanceboro - RiverVBOM1	95.5	Gauge	Washington	98.9%	665 of 672	21 min	75 min
212	St John River AT DickeyDICM1	95.5	Gauge	Aroostook	98.8%	664 of 672	21 min	75 min
212	Kennebec River At The ForksFRKM1	95.5	Gauge	Somerset	98.8%	664 of 672	21 min	75 min
214	Brooklin 2.5 NWME-HN-8	95.4	Volunteer	Hancock	100%	3 of 3	11.4 h	24 h
215	Ripogenus Dam - McoopRIPM1	95.4	Gauge	Piscataquis	94.1%	243 of 258	21 min	61 min
216	FryebergIZG	95.2	Airport	Oxford	90.5%	172 of 190	11 min	75 min
217	East Branch Penobscot River AT GrindstoneGRNM1	95.1	Gauge	Penobscot	98.8%	166 of 168	31 min	2 h
218	Cutler Farris Wharf - 8411060CFWM1	95.1	Gauge	Washington	97.8%	822 of 840	24 min	48 min
219	Bar Harbor - 8413320ATGM1	95.1	Gauge	Hancock	97.8%	822 of 840	24 min	48 min
220	Portland - 8418150CASM1	95.1	Gauge	Cumberland	97.7%	821 of 840	24 min	48 min
221	Eastport - 8410140PSBM1	95.1	Gauge	Washington	97.7%	821 of 840	24 min	48 min
222	Seavey IslandSEIM1	95.0	Gauge	York	97.7%	821 of 840	24 min	48 min
223	Millinocket WWTPMWTM1	94.6	Cooperative	Penobscot	85.7%	6 of 7	23 min	44.7 h
224	JackmanJKMM1	94.6	Cooperative	Somerset	85.7%	6 of 7	28 min	26.5 h
225	DurhamDURM1	94.6	Cooperative	Androscoggin	85.7%	6 of 7	1.6 h	47 h
226	HOLM1HOLM1	94.2	DCP	-	85.7%	6 of 7	3.2 h	2 days
227	BrunswickBXM	94.1	Airport	Cumberland	97.0%	489 of 504	10 min	3.3 h
228	Penobscot River AT Weldon DamWLDM1	94.1	Gauge	Penobscot	91.3%	307 of 336	22 min	1.6 h
229	Southwest Harbor 2.2 SEME-HN-68	94.0	Volunteer	Hancock	100%	3 of 3	14.4 h	24 h
230	West Falmouth - Presumpscot RiverWFAM1	93.9	Gauge	Cumberland	98.6%	663 of 672	25 min	1.5 h
231	Swift River AT RoxburyROXM1	93.5	Gauge	Oxford	98.6%	663 of 672	30 min	75 min
232	Millinocket MuniMLT	93.3	Airport	Penobscot	84.2%	177 of 210	12 min	1.9 h
233	Auburn 2.5 NNEME-AN-52	93.1	Volunteer	Androscoggin	100%	3 of 3	16.4 h	24 h
234	Millinocket Ground Water WellMWWM1	92.9	Gauge	Penobscot	98.2%	165 of 168	41 min	2 h
235	Sandy River AT MercerMERM1	92.8	Gauge	Somerset	86.6%	194 of 224	21 min	61 min
236	Old Town 2 W94644	92.3	Reference	Penobscot	100%	67 of 67	1.5 h	3 h
236	Limestone 4 NNW94645	92.3	Reference	Aroostook	100%	67 of 67	1.5 h	3 h
238	Gray NWS WFOGYX	92.1	Cooperative	Cumberland	78.5%	11 of 14	28 min	19 h
239	Nerrs Meteorological Site At Wells ReserveWEXM1	91.5	Gauge	York	86.6%	194 of 224	21 min	61 min
240	Kenduskeag Ground Water WellKWWM1	91.2	Gauge	Penobscot	99.4%	167 of 168	51 min	2 h
241	Houlton INTL ArptHUL	91.0	Airport	Aroostook	75.1%	184 of 245	11 min	2 h
242	Milbridge (Jordan's Pier) MLLWMIGM1	90.8	Gauge	Washington	84.3%	654 of 775	26 min	41 min
243	Bucksport Tidal GageBKPM1	90.0	Gauge	Hancock	81.5%	685 of 840	21 min	48 min
244	Augusta State ArptAUG	89.7	Airport	Lincoln	72.4%	192 of 265	12 min	1.8 h
245	Calais Ground Water WellCWWM1	89.6	Gauge	Washington	100%	168 of 168	71 min	2 h
246	Stonington Harbor (MLLW)STHM1	89.6	Gauge	Hancock	82.3%	692 of 840	22 min	59 min
247	North AnsonNNNM1	89.6	Gauge	Somerset	71.4%	5 of 7	21 min	2 days
248	Wyman DamBNGM1	89.6	Cooperative	Somerset	71.4%	5 of 7	39 min	37 h
249	CHUM1CHUM1	89.6	DCP	-	71.4%	5 of 7	1.8 h	2 days
250	ScarboroughSCRM1	89.5	Gauge	Cumberland	82.9%	643 of 775	26 min	53 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.