Counties in Pennsylvania by annual precipitation

Carbon County had the highest annual precipitation of 67 counties in 2020, at 52.69 inches. Bradford County had the lowest, at 36.57 inches. The median was 42.53 inches and the figure for Pennsylvania was 43.26 inches. Source: NOAA National Centers for Environmental Information.

Keep it in a collection in your library.
Highest52.69Carbon County
Lowest36.57Bradford County
Median42.5367 counties
Pennsylvania43.26History

Map of counties, 2020

Adams County: 39.59 inchesAllegheny County: 39.72 inchesArmstrong County: 44.27 inchesBeaver County: 42 inchesBedford County: 41.08 inchesBerks County: 50.88 inchesBlair County: 40.18 inchesBradford County: 36.57 inchesBucks County: 49.18 inchesButler County: 43.85 inchesCambria County: 44.27 inchesCameron County: 41.87 inchesCarbon County: 52.69 inchesCentre County: 40.18 inchesChester County: 52.64 inchesClarion County: 41.81 inchesClearfield County: 40.63 inchesClinton County: 39.19 inchesColumbia County: 42.6 inchesCrawford County: 45.24 inchesCumberland County: 39.11 inchesDauphin County: 40.84 inchesDelaware County: 52.45 inchesElk County: 43.84 inchesErie County: 45.82 inchesFayette County: 45.65 inchesForest County: 41.85 inchesFranklin County: 38.51 inchesFulton County: 40.83 inchesGreene County: 41.39 inchesHuntingdon County: 39.47 inchesIndiana County: 45.62 inchesJefferson County: 40.42 inchesJuniata County: 40.73 inchesLackawanna County: 41.58 inchesLancaster County: 48.35 inchesLawrence County: 45.86 inchesLebanon County: 47.09 inchesLehigh County: 51.82 inchesLuzerne County: 44.18 inchesLycoming County: 39.3 inchesMcKean County: 43.35 inchesMercer County: 45.76 inchesMifflin County: 40.82 inchesMonroe County: 49.04 inchesMontgomery County: 51.61 inchesMontour County: 38.37 inchesNorthampton County: 50.97 inchesNorthumberland County: 39.53 inchesPerry County: 40.06 inchesPhiladelphia County: 51.18 inchesPike County: 43.98 inchesPotter County: 39.88 inchesSchuylkill County: 49.83 inchesSnyder County: 40.77 inchesSomerset County: 47.97 inchesSullivan County: 41.96 inchesSusquehanna County: 42.53 inchesTioga County: 36.97 inchesUnion County: 38.82 inchesVenango County: 44.85 inchesWarren County: 44.19 inchesWashington County: 40.75 inchesWayne County: 42.93 inchesWestmoreland County: 45.69 inchesWyoming County: 41.01 inchesYork County: 42.82 inches
  • Under 40
  • 40 to 41
  • 41 to 43
  • 43 to 44
  • 44 to 48
  • 48 and over
inches, 2020. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2020

Carbon County: 52.69 inchesCarbon County52.69Chester County: 52.64 inchesChester County52.64Delaware County: 52.45 inchesDelaware County52.45Lehigh County: 51.82 inchesLehigh County51.82Montgomery County: 51.61 inchesMontgomery County51.61Philadelphia County: 51.18 inchesPhiladelphia County51.18Northampton County: 50.97 inchesNorthampton County50.97Berks County: 50.88 inchesBerks County50.88Schuylkill County: 49.83 inchesSchuylkill County49.83Bucks County: 49.18 inchesBucks County49.18Monroe County: 49.04 inchesMonroe County49.04Lancaster County: 48.35 inchesLancaster County48.35Somerset County: 47.97 inchesSomerset County47.97Lebanon County: 47.09 inchesLebanon County47.09Lawrence County: 45.86 inchesLawrence County45.86Erie County: 45.82 inchesErie County45.82Mercer County: 45.76 inchesMercer County45.76Westmoreland County: 45.69 inchesWestmoreland County45.69Fayette County: 45.65 inchesFayette County45.65Indiana County: 45.62 inchesIndiana County45.62Crawford County: 45.24 inchesCrawford County45.24Venango County: 44.85 inchesVenango County44.85Armstrong County: 44.27 inchesArmstrong County44.27Cambria County: 44.27 inchesCambria County44.27Warren County: 44.19 inchesWarren County44.19Luzerne County: 44.18 inchesLuzerne County44.18Pike County: 43.98 inchesPike County43.98Butler County: 43.85 inchesButler County43.85Elk County: 43.84 inchesElk County43.84McKean County: 43.35 inchesMcKean County43.35Wayne County: 42.93 inchesWayne County42.93York County: 42.82 inchesYork County42.82Columbia County: 42.6 inchesColumbia County42.6Susquehanna County: 42.53 inchesSusquehanna County42.53Beaver County: 42 inchesBeaver County42Sullivan County: 41.96 inchesSullivan County41.96Cameron County: 41.87 inchesCameron County41.87Forest County: 41.85 inchesForest County41.85Clarion County: 41.81 inchesClarion County41.81Lackawanna County: 41.58 inchesLackawanna County41.58Carbon County: 52.69 inchesCarbon County52.69Chester County: 52.64 inchesChester County52.64Delaware County: 52.45 inchesDelaware County52.45Lehigh County: 51.82 inchesLehigh County51.82Montgomery County: 51.61 inchesMontgomery County51.61Philadelphia County: 51.18 inchesPhiladelphia County51.18Northampton County: 50.97 inchesNorthampton County50.97Berks County: 50.88 inchesBerks County50.88Schuylkill County: 49.83 inchesSchuylkill County49.83Bucks County: 49.18 inchesBucks County49.18Monroe County: 49.04 inchesMonroe County49.04Lancaster County: 48.35 inchesLancaster County48.35Somerset County: 47.97 inchesSomerset County47.97Lebanon County: 47.09 inchesLebanon County47.09Lawrence County: 45.86 inchesLawrence County45.86Erie County: 45.82 inchesErie County45.82Mercer County: 45.76 inchesMercer County45.76Westmoreland County: 45.69 inchesWestmoreland County45.69Fayette County: 45.65 inchesFayette County45.65Indiana County: 45.62 inchesIndiana County45.62Crawford County: 45.24 inchesCrawford County45.24Venango County: 44.85 inchesVenango County44.85Armstrong County: 44.27 inchesArmstrong County44.27Cambria County: 44.27 inchesCambria County44.27Warren County: 44.19 inchesWarren County44.19Luzerne County: 44.18 inchesLuzerne County44.18Pike County: 43.98 inchesPike County43.98Butler County: 43.85 inchesButler County43.85Elk County: 43.84 inchesElk County43.84McKean County: 43.35 inchesMcKean County43.35Wayne County: 42.93 inchesWayne County42.93York County: 42.82 inchesYork County42.82Columbia County: 42.6 inchesColumbia County42.6Susquehanna County: 42.53 inchesSusquehanna County42.53Beaver County: 42 inchesBeaver County42Sullivan County: 41.96 inchesSullivan County41.96Cameron County: 41.87 inchesCameron County41.87Forest County: 41.85 inchesForest County41.85Clarion County: 41.81 inchesClarion County41.81Lackawanna County: 41.58 inchesLackawanna County41.58
inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

RankCounties2020
inches
Change on 2019
1Carbon County52.69-7.4%
2Chester County52.64+2%
3Delaware County52.45+9%
4Lehigh County51.82-11.9%
5Montgomery County51.61-4.1%
6Philadelphia County51.18+0.4%
7Northampton County50.97-13.1%
8Berks County50.88-10.5%
9Schuylkill County49.83-8.5%
10Bucks County49.18-8%
11Monroe County49.04-15.7%
12Lancaster County48.35-4.4%
13Somerset County47.97-7.4%
14Lebanon County47.09-13.8%
15Lawrence County45.86-11.8%
16Erie County45.82-10.1%
17Mercer County45.76-15.6%
18Westmoreland County45.69-15.5%
19Fayette County45.65-13.2%
20Indiana County45.62-10%
21Crawford County45.24-17.9%
22Venango County44.85-21.8%
23Armstrong County44.27-18.2%
23Cambria County44.27-10.8%
25Warren County44.19-16.9%
26Luzerne County44.18-14.8%
27Pike County43.98-14.5%
28Butler County43.85-19.6%
29Elk County43.84-18.8%
30McKean County43.35-15.3%
31Wayne County42.93-13.2%
32York County42.82-11.2%
33Columbia County42.6-13.2%
34Susquehanna County42.53-14.5%
35Beaver County42-24.1%
36Sullivan County41.96-19.3%
37Cameron County41.87-21.8%
38Forest County41.85-21.8%
39Clarion County41.81-19.8%
40Lackawanna County41.58-22.5%
41Greene County41.39-15.2%
42Bedford County41.08-8.3%
43Wyoming County41.01-21%
44Dauphin County40.84-19.2%
45Fulton County40.83-6.6%
46Mifflin County40.82-7.9%
47Snyder County40.77-15.5%
48Washington County40.75-17.6%
49Juniata County40.73-9.7%
50Clearfield County40.63-16.3%
51Jefferson County40.42-18.2%
52Blair County40.18-10.8%
52Centre County40.18-15.9%
54Perry County40.06-17.4%
55Potter County39.88-18.7%
56Allegheny County39.72-24.5%
57Adams County39.59-21.4%
58Northumberland County39.53-16.7%
59Huntingdon County39.47-10.7%
60Lycoming County39.3-21.1%
61Clinton County39.19-23.7%
62Cumberland County39.11-22.7%
63Union County38.82-19.5%
64Franklin County38.51-17.4%
65Montour County38.37-20.2%
66Tioga County36.97-18.4%
67Bradford County36.57-18.2%

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, 2020) [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, 2020. 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=2020. 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, 2020. 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=2020.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Pennsylvania by annual precipitation, 2020 [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=2020 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_counties_in_pennsylvania_by_2020,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Pennsylvania by annual precipitation, 2020}},
  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=2020. 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, 2020
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=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/pennsylvania-counties?period=2020.
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?

Carbon County, with 52.69 inches in 2020, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Bradford County, with 36.57 inches in 2020.

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