Counties in Pennsylvania by average annual temperature

Philadelphia County had the highest average annual temperature of 67 counties in 2022, at 56.4 °F. Sullivan County had the lowest, at 45.7 °F. The median was 49.5 °F and the figure for Pennsylvania was 49.6 °F. Source: NOAA National Centers for Environmental Information.

Keep it in a collection in your library.
Lowest45.7Sullivan County
Median49.567 counties
Pennsylvania49.6History

Map of counties, 2022

Adams County: 52.9 °FAllegheny County: 51.8 °FArmstrong County: 49.5 °FBeaver County: 50.5 °FBedford County: 50.8 °FBerks County: 52.7 °FBlair County: 49.5 °FBradford County: 47.1 °FBucks County: 53.6 °FButler County: 49.4 °FCambria County: 47.6 °FCameron County: 47.6 °FCarbon County: 48.5 °FCentre County: 49.1 °FChester County: 53.6 °FClarion County: 48.1 °FClearfield County: 48.1 °FClinton County: 48.5 °FColumbia County: 49.5 °FCrawford County: 48.2 °FCumberland County: 52.9 °FDauphin County: 52.6 °FDelaware County: 55.8 °FElk County: 47.5 °FErie County: 48.6 °FFayette County: 50.1 °FForest County: 47.3 °FFranklin County: 52.3 °FFulton County: 52 °FGreene County: 51.3 °FHuntingdon County: 51.1 °FIndiana County: 49 °FJefferson County: 48.1 °FJuniata County: 51.7 °FLackawanna County: 48.2 °FLancaster County: 53.5 °FLawrence County: 49.7 °FLebanon County: 52.7 °FLehigh County: 52.1 °FLuzerne County: 48.4 °FLycoming County: 48.5 °FMcKean County: 46.9 °FMercer County: 48.9 °FMifflin County: 51 °FMonroe County: 47.9 °FMontgomery County: 54.4 °FMontour County: 50.5 °FNorthampton County: 51.3 °FNorthumberland County: 50.8 °FPerry County: 52.2 °FPhiladelphia County: 56.4 °FPike County: 47.9 °FPotter County: 46.3 °FSchuylkill County: 50 °FSnyder County: 51.1 °FSomerset County: 47.9 °FSullivan County: 45.7 °FSusquehanna County: 47.2 °FTioga County: 46.5 °FUnion County: 50.3 °FVenango County: 48.1 °FWarren County: 46.9 °FWashington County: 51.3 °FWayne County: 47.3 °FWestmoreland County: 50.8 °FWyoming County: 48.2 °FYork County: 53.7 °F
  • Under 48
  • 48 to 50
  • 50 to 51
  • 51 to 53
  • 53 and over
°F, 2022. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2022

Philadelphia County: 56.4 °FPhiladelphia County56.4Delaware County: 55.8 °FDelaware County55.8Montgomery County: 54.4 °FMontgomery County54.4York County: 53.7 °FYork County53.7Bucks County: 53.6 °FBucks County53.6Chester County: 53.6 °FChester County53.6Lancaster County: 53.5 °FLancaster County53.5Adams County: 52.9 °FAdams County52.9Cumberland County: 52.9 °FCumberland County52.9Berks County: 52.7 °FBerks County52.7Lebanon County: 52.7 °FLebanon County52.7Dauphin County: 52.6 °FDauphin County52.6Franklin County: 52.3 °FFranklin County52.3Perry County: 52.2 °FPerry County52.2Lehigh County: 52.1 °FLehigh County52.1Fulton County: 52 °FFulton County52Allegheny County: 51.8 °FAllegheny County51.8Juniata County: 51.7 °FJuniata County51.7Greene County: 51.3 °FGreene County51.3Northampton County: 51.3 °FNorthampton County51.3Washington County: 51.3 °FWashington County51.3Huntingdon County: 51.1 °FHuntingdon County51.1Snyder County: 51.1 °FSnyder County51.1Mifflin County: 51 °FMifflin County51Bedford County: 50.8 °FBedford County50.8Northumberland County: 50.8 °FNorthumberland County50.8Westmoreland County: 50.8 °FWestmoreland County50.8Beaver County: 50.5 °FBeaver County50.5Montour County: 50.5 °FMontour County50.5Union County: 50.3 °FUnion County50.3Fayette County: 50.1 °FFayette County50.1Schuylkill County: 50 °FSchuylkill County50Lawrence County: 49.7 °FLawrence County49.7Armstrong County: 49.5 °FArmstrong County49.5Blair County: 49.5 °FBlair County49.5Columbia County: 49.5 °FColumbia County49.5Butler County: 49.4 °FButler County49.4Centre County: 49.1 °FCentre County49.1Indiana County: 49 °FIndiana County49Mercer County: 48.9 °FMercer County48.9Philadelphia County: 56.4 °FPhiladelphia County56.4Delaware County: 55.8 °FDelaware County55.8Montgomery County: 54.4 °FMontgomery County54.4York County: 53.7 °FYork County53.7Bucks County: 53.6 °FBucks County53.6Chester County: 53.6 °FChester County53.6Lancaster County: 53.5 °FLancaster County53.5Adams County: 52.9 °FAdams County52.9Cumberland County: 52.9 °FCumberland County52.9Berks County: 52.7 °FBerks County52.7Lebanon County: 52.7 °FLebanon County52.7Dauphin County: 52.6 °FDauphin County52.6Franklin County: 52.3 °FFranklin County52.3Perry County: 52.2 °FPerry County52.2Lehigh County: 52.1 °FLehigh County52.1Fulton County: 52 °FFulton County52Allegheny County: 51.8 °FAllegheny County51.8Juniata County: 51.7 °FJuniata County51.7Greene County: 51.3 °FGreene County51.3Northampton County: 51.3 °FNorthampton County51.3Washington County: 51.3 °FWashington County51.3Huntingdon County: 51.1 °FHuntingdon County51.1Snyder County: 51.1 °FSnyder County51.1Mifflin County: 51 °FMifflin County51Bedford County: 50.8 °FBedford County50.8Northumberland County: 50.8 °FNorthumberland County50.8Westmoreland County: 50.8 °FWestmoreland County50.8Beaver County: 50.5 °FBeaver County50.5Montour County: 50.5 °FMontour County50.5Union County: 50.3 °FUnion County50.3Fayette County: 50.1 °FFayette County50.1Schuylkill County: 50 °FSchuylkill County50Lawrence County: 49.7 °FLawrence County49.7Armstrong County: 49.5 °FArmstrong County49.5Blair County: 49.5 °FBlair County49.5Columbia County: 49.5 °FColumbia County49.5Butler County: 49.4 °FButler County49.4Centre County: 49.1 °FCentre County49.1Indiana County: 49 °FIndiana County49Mercer County: 48.9 °FMercer County48.9
°F. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Retrieved 2026-10-12.

Full ranking

RankCounties2022
°F
Change on 2021
1Philadelphia County56.4-0.9%
2Delaware County55.8-1.1%
3Montgomery County54.4-1.8%
4York County53.7-2%
5Bucks County53.6-2%
5Chester County53.6-2%
7Lancaster County53.5-2.4%
8Adams County52.9-2.6%
8Cumberland County52.9-2.4%
10Berks County52.7-2.6%
10Lebanon County52.7-2%
12Dauphin County52.6-2%
13Franklin County52.3-2.8%
14Perry County52.2-2.1%
15Lehigh County52.1-2.4%
16Fulton County52-2.8%
17Allegheny County51.8-2.8%
18Juniata County51.7-2.5%
19Greene County51.3-3.2%
19Northampton County51.3-2.3%
19Washington County51.3-3.2%
22Huntingdon County51.1-2.9%
22Snyder County51.1-2.7%
24Mifflin County51-2.7%
25Bedford County50.8-3.1%
25Northumberland County50.8-2.7%
25Westmoreland County50.8-2.9%
28Beaver County50.5-3.3%
28Montour County50.5-2.7%
30Union County50.3-2.7%
31Fayette County50.1-3.5%
32Schuylkill County50-2.5%
33Lawrence County49.7-2.9%
34Armstrong County49.5-3.7%
34Blair County49.5-3.5%
34Columbia County49.5-2.8%
37Butler County49.4-3.1%
38Centre County49.1-3.2%
39Indiana County49-3.4%
40Mercer County48.9-3.2%
41Erie County48.6-4.1%
42Carbon County48.5-2.4%
42Clinton County48.5-4%
42Lycoming County48.5-3.2%
45Luzerne County48.4-2.4%
46Crawford County48.2-3.8%
46Lackawanna County48.2-2.4%
46Wyoming County48.2-3%
49Clarion County48.1-4%
49Clearfield County48.1-3%
49Jefferson County48.1-3.4%
49Venango County48.1-4%
53Monroe County47.9-2.4%
53Pike County47.9-1.8%
53Somerset County47.9-3.2%
56Cambria County47.6-3.4%
56Cameron County47.6-3.4%
58Elk County47.5-3.1%
59Forest County47.3-3.9%
59Wayne County47.3-2.7%
61Susquehanna County47.2-3.3%
62Bradford County47.1-3.9%
63McKean County46.9-3.1%
63Warren County46.9-4.3%
65Tioga County46.5-3.3%
66Potter County46.3-3.5%
67Sullivan County45.7-3.6%

Other periods

About this ranking

Mean air temperature from January to December, in degrees Fahrenheit: the average of the 12 monthly mean temperatures. 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, so a county with mountains and valleys has one value for very different local climates. 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 average temperature, 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 average temperature, counties (Counties in Pennsylvania by average annual temperature, 2022) [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 average temperature, counties, Counties in Pennsylvania by average annual temperature, 2022. 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/average-annual-temperature/pennsylvania-counties?period=2022. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December average temperature, counties. Counties in Pennsylvania by average annual temperature, 2022. 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/average-annual-temperature/pennsylvania-counties?period=2022.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Pennsylvania by average annual temperature, 2022 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/average-annual-temperature/pennsylvania-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_counties_in_pennsylvania_by_2022,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Pennsylvania by average annual temperature, 2022}},
  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/average-annual-temperature/pennsylvania-counties?period=2022. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December average temperature, 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 average temperature, counties: Counties in Pennsylvania by average annual temperature, 2022
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/average-annual-temperature/pennsylvania-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/pennsylvania-counties?period=2022.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December average temperature, 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 average annual temperature using official data, and cite the source.
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Questions

Which county has the highest average annual temperature?

Philadelphia County, with 56.4 °F in 2022, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Sullivan County, with 45.7 °F in 2022.

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 average temperature, counties. Retrieved 2026-10-12.

Average annual temperature: other rankings

Counties in Pennsylvania: more rankings