Counties in Pennsylvania by annual precipitation

Fayette County had the highest annual precipitation of 67 counties in 2017, at 55.78 inches. York County had the lowest, at 39.71 inches. The median was 45.32 inches and the figure for Pennsylvania was 46.61 inches. Source: NOAA National Centers for Environmental Information.

Keep it in a collection in your library.
Highest55.78Fayette County
Lowest39.71York County
Median45.3267 counties
Pennsylvania46.61History

Map of counties, 2017

Adams County: 41.71 inchesAllegheny County: 47.74 inchesArmstrong County: 49.9 inchesBeaver County: 44.21 inchesBedford County: 44.72 inchesBerks County: 46.64 inchesBlair County: 45.06 inchesBradford County: 41.23 inchesBucks County: 44.22 inchesButler County: 48.8 inchesCambria County: 50.23 inchesCameron County: 45.32 inchesCarbon County: 45.89 inchesCentre County: 44.62 inchesChester County: 42.05 inchesClarion County: 49.14 inchesClearfield County: 43.25 inchesClinton County: 46.13 inchesColumbia County: 45.69 inchesCrawford County: 49 inchesCumberland County: 42.64 inchesDauphin County: 44.13 inchesDelaware County: 40.48 inchesElk County: 50.53 inchesErie County: 50.04 inchesFayette County: 55.78 inchesForest County: 51.79 inchesFranklin County: 42.97 inchesFulton County: 44.65 inchesGreene County: 52.25 inchesHuntingdon County: 43.7 inchesIndiana County: 53.85 inchesJefferson County: 45.59 inchesJuniata County: 43.43 inchesLackawanna County: 42.77 inchesLancaster County: 41.38 inchesLawrence County: 46.13 inchesLebanon County: 47.72 inchesLehigh County: 47.67 inchesLuzerne County: 44.35 inchesLycoming County: 47.81 inchesMcKean County: 52.02 inchesMercer County: 48.33 inchesMifflin County: 43.76 inchesMonroe County: 45.52 inchesMontgomery County: 41.19 inchesMontour County: 43.12 inchesNorthampton County: 46.56 inchesNorthumberland County: 42.36 inchesPerry County: 43.24 inchesPhiladelphia County: 40.24 inchesPike County: 43.65 inchesPotter County: 44.74 inchesSchuylkill County: 49.06 inchesSnyder County: 42.51 inchesSomerset County: 55.68 inchesSullivan County: 47.98 inchesSusquehanna County: 47.39 inchesTioga County: 43.04 inchesUnion County: 42.87 inchesVenango County: 53.1 inchesWarren County: 53.13 inchesWashington County: 47.47 inchesWayne County: 43.23 inchesWestmoreland County: 54.41 inchesWyoming County: 44.2 inchesYork County: 39.71 inches
  • Under 43
  • 43 to 44
  • 44 to 45
  • 45 to 48
  • 48 to 50
  • 50 and over
inches, 2017. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2017

Fayette County: 55.78 inchesFayette County55.78Somerset County: 55.68 inchesSomerset County55.68Westmoreland County: 54.41 inchesWestmoreland County54.41Indiana County: 53.85 inchesIndiana County53.85Warren County: 53.13 inchesWarren County53.13Venango County: 53.1 inchesVenango County53.1Greene County: 52.25 inchesGreene County52.25McKean County: 52.02 inchesMcKean County52.02Forest County: 51.79 inchesForest County51.79Elk County: 50.53 inchesElk County50.53Cambria County: 50.23 inchesCambria County50.23Erie County: 50.04 inchesErie County50.04Armstrong County: 49.9 inchesArmstrong County49.9Clarion County: 49.14 inchesClarion County49.14Schuylkill County: 49.06 inchesSchuylkill County49.06Crawford County: 49 inchesCrawford County49Butler County: 48.8 inchesButler County48.8Mercer County: 48.33 inchesMercer County48.33Sullivan County: 47.98 inchesSullivan County47.98Lycoming County: 47.81 inchesLycoming County47.81Allegheny County: 47.74 inchesAllegheny County47.74Lebanon County: 47.72 inchesLebanon County47.72Lehigh County: 47.67 inchesLehigh County47.67Washington County: 47.47 inchesWashington County47.47Susquehanna County: 47.39 inchesSusquehanna County47.39Berks County: 46.64 inchesBerks County46.64Northampton County: 46.56 inchesNorthampton County46.56Clinton County: 46.13 inchesClinton County46.13Lawrence County: 46.13 inchesLawrence County46.13Carbon County: 45.89 inchesCarbon County45.89Columbia County: 45.69 inchesColumbia County45.69Jefferson County: 45.59 inchesJefferson County45.59Monroe County: 45.52 inchesMonroe County45.52Cameron County: 45.32 inchesCameron County45.32Blair County: 45.06 inchesBlair County45.06Potter County: 44.74 inchesPotter County44.74Bedford County: 44.72 inchesBedford County44.72Fulton County: 44.65 inchesFulton County44.65Centre County: 44.62 inchesCentre County44.62Luzerne County: 44.35 inchesLuzerne County44.35Fayette County: 55.78 inchesFayette County55.78Somerset County: 55.68 inchesSomerset County55.68Westmoreland County: 54.41 inchesWestmoreland County54.41Indiana County: 53.85 inchesIndiana County53.85Warren County: 53.13 inchesWarren County53.13Venango County: 53.1 inchesVenango County53.1Greene County: 52.25 inchesGreene County52.25McKean County: 52.02 inchesMcKean County52.02Forest County: 51.79 inchesForest County51.79Elk County: 50.53 inchesElk County50.53Cambria County: 50.23 inchesCambria County50.23Erie County: 50.04 inchesErie County50.04Armstrong County: 49.9 inchesArmstrong County49.9Clarion County: 49.14 inchesClarion County49.14Schuylkill County: 49.06 inchesSchuylkill County49.06Crawford County: 49 inchesCrawford County49Butler County: 48.8 inchesButler County48.8Mercer County: 48.33 inchesMercer County48.33Sullivan County: 47.98 inchesSullivan County47.98Lycoming County: 47.81 inchesLycoming County47.81Allegheny County: 47.74 inchesAllegheny County47.74Lebanon County: 47.72 inchesLebanon County47.72Lehigh County: 47.67 inchesLehigh County47.67Washington County: 47.47 inchesWashington County47.47Susquehanna County: 47.39 inchesSusquehanna County47.39Berks County: 46.64 inchesBerks County46.64Northampton County: 46.56 inchesNorthampton County46.56Clinton County: 46.13 inchesClinton County46.13Lawrence County: 46.13 inchesLawrence County46.13Carbon County: 45.89 inchesCarbon County45.89Columbia County: 45.69 inchesColumbia County45.69Jefferson County: 45.59 inchesJefferson County45.59Monroe County: 45.52 inchesMonroe County45.52Cameron County: 45.32 inchesCameron County45.32Blair County: 45.06 inchesBlair County45.06Potter County: 44.74 inchesPotter County44.74Bedford County: 44.72 inchesBedford County44.72Fulton County: 44.65 inchesFulton County44.65Centre County: 44.62 inchesCentre County44.62Luzerne County: 44.35 inchesLuzerne County44.35
inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

RankCounties2017
inches
Change on 2016
1Fayette County55.78+22%
2Somerset County55.68+28.2%
3Westmoreland County54.41+21.7%
4Indiana County53.85+28.2%
5Warren County53.13+10.8%
6Venango County53.1+21.9%
7Greene County52.25+18.4%
8McKean County52.02+15.3%
9Forest County51.79+17%
10Elk County50.53+22.7%
11Cambria County50.23+24.2%
12Erie County50.04+3.5%
13Armstrong County49.9+22.9%
14Clarion County49.14+18.6%
15Schuylkill County49.06+17.5%
16Crawford County49+7.2%
17Butler County48.8+19.9%
18Mercer County48.33+15.5%
19Sullivan County47.98+27%
20Lycoming County47.81+32.4%
21Allegheny County47.74+22%
22Lebanon County47.72+29.4%
23Lehigh County47.67+22.5%
24Washington County47.47+14.4%
25Susquehanna County47.39+17.2%
26Berks County46.64+22.7%
27Northampton County46.56+22.5%
28Clinton County46.13+26.9%
28Lawrence County46.13+16.2%
30Carbon County45.89+7.9%
31Columbia County45.69+20.4%
32Jefferson County45.59+16.7%
33Monroe County45.52+9.9%
34Cameron County45.32+18.1%
35Blair County45.06+30.2%
36Potter County44.74+16.8%
37Bedford County44.72+42%
38Fulton County44.65+41.5%
39Centre County44.62+26.4%
40Luzerne County44.35+17.2%
41Bucks County44.22+17%
42Beaver County44.21+11.5%
43Wyoming County44.2+20.4%
44Dauphin County44.13+19.5%
45Mifflin County43.76+35.4%
46Huntingdon County43.7+33.2%
47Pike County43.65+17.9%
48Juniata County43.43+33.6%
49Clearfield County43.25+15.1%
50Perry County43.24+25.1%
51Wayne County43.23+8.6%
52Montour County43.12+29.4%
53Tioga County43.04+25.6%
54Franklin County42.97+25.9%
55Union County42.87+33.5%
56Lackawanna County42.77+12.4%
57Cumberland County42.64+22.3%
58Snyder County42.51+32.1%
59Northumberland County42.36+26.3%
60Chester County42.05+3.4%
61Adams County41.71+12.1%
62Lancaster County41.38+7.8%
63Bradford County41.23+19.3%
64Montgomery County41.19+10.5%
65Delaware County40.48+5.1%
66Philadelphia County40.24+6%
67York County39.71+2.3%

Other periods

About this ranking

Total precipitation from January to December, in inches: rain plus the water content of snow and other frozen precipitation. NOAA computes it from its climate divisional dataset (nClimDiv): station readings interpolated onto a 5 km grid and averaged over the area.

Values are area averages, not the reading at one weather station. NOAA revises the last two years every month.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December precipitation, counties (Counties in Pennsylvania by annual precipitation, 2017) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping

MLA 9

NOAA Climate at a Glance, January to December precipitation, counties, Counties in Pennsylvania by annual precipitation, 2017. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Invokely, https://invokely.ai/rankings/annual-precipitation/pennsylvania-counties?period=2017. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December precipitation, counties. Counties in Pennsylvania by annual precipitation, 2017. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Also distributed by Invokely, https://invokely.ai/rankings/annual-precipitation/pennsylvania-counties?period=2017.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Pennsylvania by annual precipitation, 2017 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/annual-precipitation/pennsylvania-counties?period=2017 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_counties_in_pennsylvania_by_2017,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Pennsylvania by annual precipitation, 2017}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/pennsylvania-counties?period=2017. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December precipitation, counties: Counties in Pennsylvania by annual precipitation, 2017
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
L2  - https://invokely.ai/rankings/annual-precipitation/pennsylvania-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/pennsylvania-counties?period=2017.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.
ER  - 
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Rank Counties in Pennsylvania by annual precipitation using official data, and cite the source.
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Questions

Which county has the highest annual precipitation?

Fayette County, with 55.78 inches in 2017, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

York County, with 39.71 inches in 2017.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Annual precipitation: other rankings

Counties in Pennsylvania: more rankings