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 4 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
751	Everett 5.5 NPA-BD-14	88.0	Volunteer	Bedford	66.6%	2 of 3	86 min	3 days
752	Jenkintown 0.2 SSEPA-MT-117	88.0	Volunteer	Montgomery	66.6%	2 of 3	2.4 h	2 days
753	Penn Hills 0.9 SSWPA-AL-149	88.0	Volunteer	Allegheny	66.6%	2 of 3	2.4 h	38.1 h
754	Butler 3.8 NEPA-BT-76	88.0	Volunteer	Butler	66.6%	2 of 3	2.4 h	35.1 h
755	Unionville 1.4 NNEPA-CN-37	88.0	Volunteer	Centre	66.6%	2 of 3	2.4 h	36.1 h
755	Washington 2.8 NPA-WS-42	88.0	Volunteer	Washington	66.6%	2 of 3	2.4 h	36.1 h
757	Plymouth Meeting 1.9 NNWPA-MT-170	87.6	Volunteer	Montgomery	66.6%	2 of 3	3.4 h	2 days
758	Bridgeville 1.0 SSEPA-AL-174	87.6	Volunteer	Allegheny	66.6%	2 of 3	3.4 h	2 days
759	Irwin 1.4 WPA-WT-96	87.6	Volunteer	Westmoreland	66.6%	2 of 3	3.4 h	2 days
760	Duryea 0.3 SEPA-LZ-15	87.6	Volunteer	Luzerne	66.6%	2 of 3	3.4 h	36.1 h
761	New Salem 0.7 NWPA-FY-32	87.6	Volunteer	Fayette	66.6%	2 of 3	3.4 h	37.1 h
762	Sayre 0.7 SPA-BF-20	87.1	Volunteer	Bradford	66.6%	2 of 3	4.4 h	2 days
763	KYTP1KYTP1	86.1	DCP	-	64.2%	9 of 14	20 min	2 days
764	Rock Springs PaS2036	86.0	Soil	Centre	94.1%	128 of 136	53 min	8 h
765	Mahantango CkS2028	85.8	Soil	Schuylkill	93.3%	127 of 136	53 min	8 h
766	Carlisle 3.3 WSWPA-CD-24	85.7	Volunteer	Cumberland	66.6%	2 of 3	7.4 h	37.1 h
767	Gardners 5.5 WNWPA-CD-30	85.7	Volunteer	Cumberland	66.6%	2 of 3	7.4 h	36.1 h
768	PA-LN-33PA-LN-33	85.7	COCORAHS	-	66.6%	2 of 3	7.4 h	2 days
769	Blawnox 2.1 NPA-AL-172	85.3	Volunteer	Allegheny	66.6%	2 of 3	8.4 h	37.1 h
770	Schuylkill River AT PhiladelphiaPADP1	85.1	Gauge	Philadelphia	78.5%	264 of 336	41 min	2 h
771	Philadelphia/Wings FieldLOM	84.9	Airport	Montgomery	84.9%	428 of 504	10 min	22.3 h
772	Tremont 0.4 NNWPA-SC-4	84.8	Volunteer	Schuylkill	66.6%	2 of 3	9.4 h	36.1 h
773	Laughlintown 1SERRFP1	84.7	Cooperative	Westmoreland	57.1%	4 of 7	2.1 h	2 days
774	Chambersburg 1SECHMP1	84.5	Gauge	Franklin	94.0%	158 of 168	7.3 h	8 h
775	TSVP1TSVP1	84.5	DCP	-	57.1%	4 of 7	2.8 h	2.5 days
776	Susquehanna River AT HarrisburgHARP1	84.4	Gauge	Dauphin	76.4%	257 of 336	41 min	2 h
777	YELLOW CREEK PA 3 NE Homer CityHMRP1	84.3	Gauge	Indiana	86.3%	145 of 168	30 min	23.8 h
778	Skippack 1.4 SSWPA-MT-20	83.9	Volunteer	Montgomery	66.6%	2 of 3	11.4 h	37.1 h
779	Farmington 0.5 ENEPA-FY-16	83.9	Volunteer	Fayette	66.6%	2 of 3	11.4 h	36.1 h
780	Bradford 1.8 SWPA-MC-8	83.9	Volunteer	McKean	66.6%	2 of 3	11.4 h	2 days
781	ARNP1ARNP1	83.8	DCP	-	57.1%	8 of 14	16 min	2 days
782	ChurchillCHHP1	83.4	Gauge	Allegheny	70.8%	119 of 168	21 min	10.6 h
783	Lansdale 1.1 WPA-MT-149	83.4	Volunteer	Montgomery	66.6%	2 of 3	12.4 h	2 days
784	Dunlevy 0.1 SSEPA-WS-25	83.4	Volunteer	Washington	66.6%	2 of 3	12.4 h	2 days
785	Linglestown 0.7 NNEPA-DP-39	83.4	Volunteer	Dauphin	66.6%	2 of 3	12.4 h	37.1 h
786	LehightonLHGP1	83.3	Cooperative	Carbon	57.1%	4 of 7	4.3 h	3.5 days
787	Monongahela 0.7 NWPA-WS-52	82.9	Volunteer	Washington	66.6%	2 of 3	13.4 h	2 days
788	Bridgeville 1.8 SWPA-AL-181	82.9	Volunteer	Allegheny	66.6%	2 of 3	13.4 h	37.1 h
789	Biglerville 3.0 WSWPA-AD-11	82.9	Volunteer	Adams	66.6%	2 of 3	13.4 h	37.1 h
790	Allison Park 2.0 NWPA-AL-158	82.5	Volunteer	Allegheny	66.6%	2 of 3	14.4 h	35.1 h
791	Gettysburg 4.9 SWPA-AD-12	82.5	Volunteer	Adams	66.6%	2 of 3	14.4 h	37.1 h
792	South Central AvenueCNBP1	82.1	Gauge	Washington	80.9%	544 of 672	26 min	9 h
793	Altoona 1.0 NNEPA-BL-10	82.0	Volunteer	Blair	66.6%	2 of 3	15.4 h	36.1 h
793	Reading 1.2 SWPA-BR-8	82.0	Volunteer	Berks	66.6%	2 of 3	15.4 h	36.1 h
795	Belmont 1.2 SEPA-CM-16	82.0	Volunteer	Cambria	66.6%	2 of 3	15.4 h	2 days
796	Ardmore 0.5 NWPA-MT-48	82.0	Volunteer	Montgomery	66.6%	2 of 3	15.4 h	3 days
797	SpringvilleVTTP1	81.7	Gauge	Venango	79.9%	537 of 672	26 min	9 h
798	Meadville 6.7 NWPA-CW-2	81.6	Volunteer	Crawford	66.6%	2 of 3	16.4 h	37.1 h
799	Reading 4.7 WSWPA-BR-29	81.5	Volunteer	Berks	66.6%	2 of 3	16.4 h	37.1 h
799	Unionville 2.2 NNEPA-CH-63	81.5	Volunteer	Chester	66.6%	2 of 3	16.4 h	37.1 h
799	Allentown 2.6 WNWPA-LH-24	81.5	Volunteer	Lehigh	66.6%	2 of 3	16.4 h	37.1 h
799	Mount Pocono 0.7 NPA-MN-16	81.5	Volunteer	Monroe	66.6%	2 of 3	16.4 h	37.1 h
799	Skippack 2.6 ESEPA-MT-85	81.5	Volunteer	Montgomery	66.6%	2 of 3	16.4 h	37.1 h
799	ShilohPA-YR-3	81.5	Volunteer	York	66.6%	2 of 3	16.4 h	37.1 h
805	Schuylkill River AT Philadelphia near 30th StreetPHDP1	81.4	Gauge	Philadelphia	79.3%	533 of 672	26 min	9.2 h
806	Swissvalle 1W - Nine Mile RunNMRP1	81.3	Gauge	Allegheny	78.8%	530 of 672	26 min	9 h
807	State CollegeUNV	81.3	Airport	Centre	52.7%	266 of 504	10 min	2 h
808	Doylestown 3.0 ENEPA-BK-87	81.1	Volunteer	Bucks	66.6%	2 of 3	17.4 h	37.1 h
808	Indiana 6.5 WNWPA-IN-9	81.1	Volunteer	Indiana	66.6%	2 of 3	17.4 h	37.1 h
810	Irwin 0.2 WPA-WT-22	81.1	Volunteer	Westmoreland	66.6%	2 of 3	17.4 h	38.1 h
811	Conway 0.5 ESEPA-BV-30	80.6	Volunteer	Beaver	66.6%	2 of 3	18.4 h	2 days
812	ShippensburgSPBP1	80.4	Cooperative	Cumberland	57.1%	4 of 7	11.7 h	2 days
813	Brackenridge 0.3 EPA-AL-179	79.7	Volunteer	Allegheny	66.6%	2 of 3	20.4 h	37.1 h
814	BiglervilleBGLP1	79.7	Cooperative	Adams	42.8%	3 of 7	39 min	30.1 h
815	LevittownLEVP1	79.7	Cooperative	Bucks	42.8%	3 of 7	39 min	2.5 days
816	Braddock Lock And DamBDDP1	79.7	Cooperative	Allegheny	42.8%	3 of 7	39 min	2.6 days
817	Donegal 2 NwACEP1	79.7	Cooperative	Westmoreland	42.8%	3 of 7	2.1 h	3 days
818	Hays - Streets RunSTHP1	79.1	Gauge	Allegheny	72.4%	487 of 672	26 min	9 h
819	Emsworth 1NNE - Lowries RunLRNP1	79.1	Gauge	Allegheny	72.4%	487 of 672	26 min	9 h
820	Latrobe/WestmorlandLBE	79.1	Airport	Somerset	54.7%	276 of 504	10 min	4.3 h
821	CHVP1CHVP1	79.0	DCP	-	42.8%	3 of 7	2.7 h	3.6 days
822	SAHP1SAHP1	78.8	DCP	-	42.8%	3 of 7	1.5 h	4 days
823	Francis E Walter DamWHNP1	78.5	Cooperative	Luzerne	42.8%	3 of 7	-	2.5 days
824	Gettysburg 4.1 EPA-AD-60	78.3	Volunteer	Adams	66.6%	2 of 3	23.4 h	2.1 days
825	Palmerton 5.8 ENEPA-CB-4	78.0	Volunteer	Carbon	66.6%	2 of 3	24.4 h	3 days
826	Ligonier 0.6 ESEPA-WT-80	78.0	Volunteer	Westmoreland	66.6%	2 of 3	24.4 h	36.1 h
827	Woodland 3.6 NPA-CF-4	78.0	Volunteer	Clearfield	66.6%	2 of 3	24.4 h	37.1 h
828	Slatington 6.0 WSWPA-LH-1	78.0	Volunteer	Lehigh	66.6%	2 of 3	25.4 h	37.1 h
829	Gettysburg 0.8 NNEPA-AD-5	78.0	Volunteer	Adams	66.6%	2 of 3	25.4 h	37.1 h
830	Peach Bottom 3.4 NPA-LN-40	78.0	Volunteer	Lancaster	66.6%	2 of 3	26.4 h	37.1 h
831	Furlong 0.9 SWPA-BK-85	76.4	Volunteer	Bucks	33.3%	1 of 3	26 min	2.5 days
831	Ephrata 0.6 NWPA-LN-28	76.4	Volunteer	Lancaster	33.3%	1 of 3	26 min	2.5 days
833	Doylestown 3.4 SWPA-BK-44	76.4	Volunteer	Bucks	33.3%	1 of 3	26 min	2.5 days
833	Schnecksville 1.7 ENEPA-LH-17	76.4	Volunteer	Lehigh	33.3%	1 of 3	26 min	2.5 days
835	Plum 1.6 SSEPA-AL-130	76.4	Volunteer	Allegheny	33.3%	1 of 3	86 min	2.5 days
836	Easton 2.4 NPA-NH-30	76.4	Volunteer	Northampton	33.3%	1 of 3	86 min	2.5 days
837	Mount Lebanon 0.9 WSWPA-AL-156	76.4	Volunteer	Allegheny	33.3%	1 of 3	86 min	2.5 days
837	Shelocta 3.1 NNWPA-AR-8	76.4	Volunteer	Armstrong	33.3%	1 of 3	86 min	2.5 days
837	Mechanicsburg 1.0 NNWPA-CD-6	76.4	Volunteer	Cumberland	33.3%	1 of 3	86 min	2.5 days
837	State College 1.3 SWPA-CN-39	76.4	Volunteer	Centre	33.3%	1 of 3	86 min	2.5 days
837	North Wales 1.3 SWPA-MT-72	76.4	Volunteer	Montgomery	33.3%	1 of 3	86 min	2.5 days
842	Swatara Creek near PalmyraPMYP1	76.3	Gauge	Dauphin	39.2%	66 of 168	21 min	60 min
843	Hermitage 2.2 SSWPA-MR-12	75.9	Volunteer	Mercer	33.3%	1 of 3	3.4 h	2.5 days
844	Raystown Branch Juniata AT Raystown Lake - DamRTDP1	75.4	Gauge	Huntingdon	63.3%	142 of 224	30 min	24 h
845	US 15 S/B Bloss Mtn @ Liberty Ti PA US PADOTPA002	75.0	Road	Tioga	61.5%	310 of 504	18 min	21.1 h
845	SR 219 N/B @ Meyersdale Bypass S PA US PADOTPA006	75.0	Road	Somerset	61.5%	310 of 504	18 min	21.1 h
845	SR-77 @ Green HillPA012	75.0	Road	Crawford	61.5%	310 of 504	18 min	21.1 h
845	I-84 E/B @ Exit 17 Newfoundland/ PA US PADOTPA021	75.0	Road	Wayne	61.5%	310 of 504	18 min	21.1 h
845	I-81 S/B @ Exit 77 PA 39 Manada PA US PADOTPA025	75.0	Road	Dauphin	61.5%	310 of 504	18 min	21.1 h
845	I-81 N/B @ Exit 145 Hazleton Luz PA US PADOTPA026	75.0	Road	Luzerne	61.5%	310 of 504	18 min	21.1 h
845	I-81 N/B @ Exit 223 New Milford PA US PADOTPA027	75.0	Road	Susquehanna	61.5%	310 of 504	18 min	21.1 h
845	I-81 S/B @ Exit 134 Delano Schuy PA US PADOTPA029	75.0	Road	Schuylkill	61.5%	310 of 504	18 min	21.1 h
845	I-80 MM 67 @ CL School Rd Clario PA US PADOTPA030	75.0	Road	Clarion	61.5%	310 of 504	18 min	21.1 h
845	I-81 N/B @ Exit 211 Lenox SR 92 PA US PADOTPA031	75.0	Road	Susquehanna	61.5%	310 of 504	18 min	21.1 h
845	I-80 E/B @ Exit 90 Dubois Region PA US PADOTPA035	75.0	Road	Jefferson	61.5%	310 of 504	18 min	21.1 h
845	I-76 & MM 336PA036	75.0	Road	Montgomery	61.5%	310 of 504	18 min	21.1 h
845	I-80 E/B @ MM 11 /Exit 15 Mercer PA US PADOTPA040	75.0	Road	Mercer	61.5%	310 of 504	18 min	21.1 h
845	I-80 W/B @ Exit 120 Clearfield-S PA US PADOTPA041	75.0	Road	Clearfield	61.5%	310 of 504	18 min	21.1 h
845	I-80 E/B MM 246 @ Roadside Rest PA US PADOTPA043	75.0	Road	Columbia	61.5%	310 of 504	18 min	21.1 h
845	SR31 & Laurel RidgePA048	75.0	Road	Somerset	61.5%	310 of 504	18 min	21.1 h
845	SR22 & CressonPA050	75.0	Road	Cambria	61.5%	310 of 504	18 min	21.1 h
845	I-78 W/B @ MM 27 Berks Co.PA052	75.0	Road	Berks	61.5%	310 of 504	18 min	21.1 h
845	I-70 E/B MM 170 @ MD / PA Border PA US PADOTPA058	75.0	Road	Fulton	61.5%	310 of 504	18 min	21.1 h
845	I-79 N/B MM 136.4 @ Crawford / M PA US PADOTPA061	75.0	Road	Mercer	61.5%	310 of 504	18 min	21.1 h
845	I-376 W/B @ Exit 10A Churchill A PA US PADOTPA064	75.0	Road	Allegheny	61.5%	310 of 504	18 min	21.1 h
845	I-80 E/B @ MM 146.4 Rest Area Ce PA US PADOTPA065	75.0	Road	Centre	61.5%	310 of 504	18 min	21.1 h
845	I-79 N/B @ Exit 60 Crafton Alleg PA US PADOTPA066	75.0	Road	Allegheny	61.5%	310 of 504	18 min	21.1 h
845	I-80 W/B MM 287.2 @ Stoney Hollo PA US PADOTPA067	75.0	Road	Monroe	61.5%	310 of 504	18 min	21.1 h
845	I-95 @ Welcome Center Delaware C PA US PADOTPA068	75.0	Road	Delaware	61.5%	310 of 504	18 min	21.1 h
845	SR 422 E/B @ Penn Run Indiana Co PA US PADOTPA070	75.0	Road	Indiana	61.5%	310 of 504	18 min	21.1 h
845	SR 322 W/B @ Venango-Mercer Co. PA US PADOTPA071	75.0	Road	Venango	61.5%	310 of 504	18 min	21.1 h
845	I-90 near Clark Rd Overpass Erie PA US PADOTPA073	75.0	Road	Erie	61.5%	310 of 504	18 min	21.1 h
845	US 220 SB @ Loyalsock CreekPA075	75.0	Road	Sullivan	61.5%	310 of 504	18 min	21.1 h
845	US 219 SB Garrett BypassPA076	75.0	Road	Somerset	61.5%	310 of 504	18 min	21.1 h
845	I-80/I-79 JCT Mercer CoPA077	75.0	Road	Mercer	61.5%	310 of 504	18 min	21.1 h
876	SR 22 W/B @ Penn View Mtn Indian PA US PADOTPA003	75.0	Road	Indiana	61.5%	310 of 504	18 min	21.1 h
876	US 30 @ Wrights Ferry Bridge Yor PA US PADOTPA004	75.0	Road	York	61.5%	310 of 504	18 min	21.1 h
876	SR 54 W/B Natalie Mtn @ Natalie PA US PADOTPA005	75.0	Road	Northumberland	61.5%	310 of 504	18 min	21.1 h
876	US 322 W/B @ Exit PA-34 Newport PA US PADOTPA009	75.0	Road	Perry	61.5%	310 of 504	18 min	21.1 h
876	US-322/22 W/B @ Lewistown Narrow PA US PADOTPA010	75.0	Road	Juniata	61.5%	310 of 504	18 min	21.1 h
876	SR6 Gobbler KnobPA014	75.0	Road	Bradford	61.5%	310 of 504	18 min	21.1 h
876	SR219 & SR6PA015	75.0	Road	McKean	61.5%	310 of 504	18 min	21.1 h
876	I-95 @ Rest Area Bucks CntyPA016	75.0	Road	Bucks	61.5%	310 of 504	18 min	21.1 h
876	I-83 S/B @ Exit 4 Shrewsbury Yor PA US PADOTPA018	75.0	Road	York	61.5%	310 of 504	18 min	21.1 h
876	I-90 E/B @ MM 1 / Exit 3 Welcome PA US PADOTPA020	75.0	Road	Erie	61.5%	310 of 504	18 min	21.1 h
876	I-81 S/B @ MM 40 Newville Roadsi PA US PADOTPA023	75.0	Road	Cumberland	61.5%	310 of 504	18 min	21.1 h
876	I-81 N/B @ Exit 112 Hegins Schuy PA US PADOTPA028	75.0	Road	Schuylkill	61.5%	310 of 504	18 min	21.1 h
876	I-80 W/B @ MM 153.8 Centre Co.PA032	75.0	Road	Centre	61.5%	310 of 504	18 min	21.1 h
876	I-80 W/B @ Exit 133 Kylertown SR PA US PADOTPA033	75.0	Road	Clearfield	61.5%	310 of 504	18 min	21.1 h
876	I-80 E/B MM 55 @ Knox Clarion Co PA US PADOTPA034	75.0	Road	Clarion	61.5%	310 of 504	18 min	21.1 h
876	SR33 & Wind GapPA037	75.0	Road	Northampton	61.5%	310 of 504	18 min	21.1 h
876	I-80 E/B @ MM 190.6 Clinton Co. PA US PADOTPA045	75.0	Road	Clinton	61.5%	310 of 504	18 min	21.1 h
876	I-99 Exit 41 BellwoodPA046	75.0	Road	Blair	61.5%	310 of 504	18 min	21.1 h
876	I-99 MP 62.5 Centre CountyPA047	75.0	Road	Centre	61.5%	310 of 504	18 min	21.1 h
876	SR30 @ Business 30PA049	75.0	Road	Chester	61.5%	310 of 504	18 min	21.1 h
876	I-70 W/B @ Exit 156 Town Hill Fu PA US PADOTPA056	75.0	Road	Fulton	61.5%	310 of 504	18 min	21.1 h
876	I-79 S/B @ MM 100 Coopers Lake B PA US PADOTPA060	75.0	Road	Butler	61.5%	310 of 504	18 min	21.1 h
876	I-380 N/B @ Exit 20 Daleville La PA US PADOTPA063	75.0	Road	Lackawanna	61.5%	310 of 504	18 min	21.1 h
876	US-522N/22E @ US-322 Interchange PA US PADOTPA069	75.0	Road	Mifflin	61.5%	310 of 504	18 min	21.1 h
876	US-322 E/B Seven Mountains @ Run PA US PADOTPA072	75.0	Road	Mifflin	61.5%	310 of 504	18 min	21.1 h
876	SR6 @ Coudersport Potter CoPA074	75.0	Road	Potter	61.5%	310 of 504	18 min	21.1 h
876	I-81 Franklin MM11 NBPA078	75.0	Road	Franklin	61.5%	310 of 504	18 min	21.1 h
903	I-81 S/B @ Exit 65 US 11/15 Geor PA US PADOTPA022	75.0	Road	Cumberland	61.5%	310 of 504	18 min	21.1 h
903	I-80 E/B @ MM 194.8 Clinton Co. PA US PADOTPA044	75.0	Road	Clinton	61.5%	310 of 504	18 min	21.1 h
905	I-176 E/B @ SR 422 Interchange B PA US PADOTPA062	74.9	Road	Berks	61.1%	308 of 504	18 min	21.1 h
906	York 2.5 NNWPA-YR-17	74.9	Volunteer	York	33.3%	1 of 3	5.4 h	2.5 days
907	I-79 N/B @ MM 6 Welcome Center G PA US PADOTPA053	74.8	Road	Greene	61.5%	310 of 504	19 min	21.1 h
908	SR 8 N/B @ SR 308 Venango Co.PA001	74.8	Road	Venango	61.5%	310 of 504	19 min	21.2 h
908	I-80 E/B Exit 260 @ I-81 Junctio PA US PADOTPA042	74.8	Road	Luzerne	61.5%	310 of 504	19 min	21.2 h
910	NorristownNRSP1	74.7	Cooperative	Montgomery	57.1%	4 of 7	24.8 h	2 days
911	I-70 E/B MM 5 @ Welcome Center WashingtoPA011	74.0	Road	Washington	61.3%	309 of 504	23 min	21.2 h
911	I-80 E/B MM 246 @ Roadside Rest ColumbiaPA013	74.0	Road	Columbia	61.3%	309 of 504	23 min	21.2 h
913	Palmyra 0.9 SWPA-LB-25	74.0	Volunteer	Lebanon	33.3%	1 of 3	7.4 h	2.5 days
914	I-83 S/B @ Exit 38 Reeser Summit PA US PADOTPA019	73.9	Road	York	61.5%	310 of 504	18 min	21.1 h
915	SR 309 N/B @ I-276 Ft Washington PA US PADOTPA008	73.5	Road	Montgomery	57.7%	291 of 504	18 min	21.1 h
916	Dubois 2SDJBP1	73.3	Cooperative	Clearfield	28.5%	2 of 7	4.3 h	3.5 days
917	Montrose 0.4 ENEPA-SS-22	73.1	Volunteer	Susquehanna	33.3%	1 of 3	9.4 h	3 days
918	I-80 W/B @ Exit 111 Clearfield-P PA US PADOTPA039	72.9	Road	Clearfield	61.5%	310 of 504	19 min	21.2 h
919	Cooperstown 1.3 EPA-VN-7	72.6	Volunteer	Venango	33.3%	1 of 3	10.4 h	2.5 days
920	SR56 & Babcock MtnPA051	72.1	Road	Somerset	61.5%	310 of 504	18 min	21.1 h
921	McCandless Township 1.9 SPA-AL-64	71.2	Volunteer	Allegheny	33.3%	1 of 3	13.4 h	2.6 days
922	Dillsburg 3.3 SWPA-YR-56	71.2	Volunteer	York	33.3%	1 of 3	13.4 h	2.5 days
923	Landisville 0.8 WSWPA-LN-46	70.8	Volunteer	Lancaster	33.3%	1 of 3	14.4 h	2.5 days
924	Fox Run 0.9 SSWPA-BT-69	70.3	Volunteer	Butler	33.3%	1 of 3	15.4 h	2.5 days
924	Auburn 0.1 WNWPA-SC-10	70.3	Volunteer	Schuylkill	33.3%	1 of 3	15.4 h	2.5 days
926	Mount Bethel 2.4 SEPA-NH-22	69.9	Volunteer	Northampton	33.3%	1 of 3	16.4 h	2.5 days
927	Neshaminy Creek AT LanghorneLNGP1	69.6	Gauge	Bucks	57.7%	97 of 168	46 min	40.3 h
928	I-80 E/B @ Exit 35 @ MM 37.5 Cli PA US PADOTPA038	69.2	Road	Venango	46.1%	310 of 672	18 min	21.1 h
928	I-79 N/B @ Exit 40 Meadow Lands PA US PADOTPA054	69.2	Road	Washington	46.1%	310 of 672	18 min	21.1 h
928	I-70 E/B MM 5 @ Welcome Center W PA US PADOTPA057	69.2	Road	Washington	46.1%	310 of 672	18 min	21.1 h
931	I-79 S/B MM 86 @ Evans City Butl PA US PADOTPA055	69.0	Road	Butler	46.1%	310 of 672	19 min	21.2 h
932	Williamsport 2.3 WNWPA-LY-13	68.9	Volunteer	Lycoming	33.3%	1 of 3	18.4 h	2.6 days
933	MurrysvilleMRVP1	68.8	Cooperative	Westmoreland	42.8%	3 of 7	26.6 h	4 days
934	Mohnton 0.1 SWPA-BR-33	68.0	Volunteer	Berks	33.3%	1 of 3	20.4 h	2 days
935	Tionesta 4.9 ENEPA-FR-4	68.0	Volunteer	Forest	33.3%	1 of 3	20.4 h	2.5 days
936	York Springs 2.9 SEPA-AD-62	66.4	Volunteer	Adams	33.3%	1 of 3	24.4 h	2.5 days
937	I-70 E/B @ MM 48 Youghiogheny Ri PA US PADOTPA059	66.2	Road	Westmoreland	37.3%	188 of 504	18 min	3.2 days
938	TyroneTYRP1	66.0	Gauge	Blair	44.0%	148 of 336	31 min	3.9 days
939	MilroyMLYP1	65.9	Gauge	Mifflin	43.7%	147 of 336	31 min	3.9 days
940	Mount UnionMUNP1	65.8	Gauge	Mifflin	43.4%	146 of 336	31 min	3.9 days
941	Oswayo 1ENEOSWP1	65.3	Gauge	Potter	41.9%	141 of 336	31 min	3.9 days
942	MTBP1MTBP1	65.1	DCP	-	16.9%	9 of 53	19 min	2.3 days
943	UnityvilleUNVP1	64.9	Gauge	Lycoming	41.0%	138 of 336	31 min	3.9 days
944	Slate RunSLRP1	64.5	Gauge	Lycoming	39.8%	134 of 336	31 min	3.9 days
945	Minersville 6W - Schuylkill AirportSULP1	64.4	Gauge	Schuylkill	39.5%	133 of 336	31 min	3.8 days
946	McconnelsburgMCCP1	62.7	Gauge	Fulton	43.1%	145 of 336	46 min	3.9 days
947	LaporteLAPP1	62.3	Gauge	Sullivan	41.9%	141 of 336	46 min	3.4 days
948	BACP1BACP1	62.1	DCP	-	12.2%	10 of 82	16 min	2 days
949	RLTP1RLTP1	60.6	DCP	-	9.8%	10 of 102	21 min	36 h
950	SizervilleSZRP1	58.5	Gauge	Cameron	22.6%	76 of 336	31 min	4.7 days
951	ConnellsvilleCNLP1	57.9	Cooperative	Fayette	19.1%	13 of 68	4.3 h	22 h
952	SaxtonSAXP1	56.7	Gauge	Bedford	26.1%	88 of 336	46 min	4 days
953	LewisburgLBGP1	56.3	Cooperative	Union	16.6%	14 of 84	4.3 h	23 h
954	RenovoRVOP1	51.2	Cooperative	Clinton	8.3%	14 of 168	4.3 h	23 h
955	Carlisle Water PlantCSLP1	51.2	Gauge	Cumberland	8.3%	14 of 168	4.3 h	23 h
956	Cowanesque DamCQDP1	48.5	Cooperative	Tioga	7.1%	12 of 168	4.3 h	47 h

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.