Counties in Pennsylvania by average annual temperature

Philadelphia County had the highest average annual temperature of 67 counties in 2014, at 54 °F. Sullivan County had the lowest, at 43.7 °F. The median was 47.8 °F and the figure for Pennsylvania was 47.4 °F. Source: NOAA National Centers for Environmental Information.

Highest54Philadelphia County

Lowest43.7Sullivan County

Median47.867 counties

Pennsylvania47.4History

Top 40 counties, 2014

°F. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2014 °F	Change on 2013
1	Philadelphia County	54	-1.6%
2	Delaware County	53.5	-2%
3	Montgomery County	52	-2.3%
4	Chester County	51.5	-2.6%
5	Bucks County	51.2	-2.3%
6	Lancaster County	50.9	-3%
7	York County	50.8	-3.1%
8	Adams County	50.6	-3.1%
8	Cumberland County	50.6	-3.1%
10	Franklin County	50.4	-3.1%
11	Berks County	50.2	-3.3%
12	Lebanon County	50	-3.5%
12	Lehigh County	50	-2.7%
14	Dauphin County	49.9	-3.1%
15	Perry County	49.8	-3.3%
16	Allegheny County	49.7	-2.9%
16	Greene County	49.7	-2.7%
18	Fulton County	49.4	-3.7%
18	Juniata County	49.4	-3.5%
18	Northampton County	49.4	-2.6%
18	Washington County	49.4	-3.1%
22	Huntingdon County	48.8	-3.2%
23	Mifflin County	48.7	-3.2%
23	Snyder County	48.7	-3.2%
25	Beaver County	48.6	-3.2%
26	Westmoreland County	48.5	-3%
27	Fayette County	48.4	-2.6%
28	Bedford County	48.2	-3.8%
28	Lawrence County	48.2	-3.2%
30	Montour County	48.1	-3.6%
30	Northumberland County	48.1	-3.8%
32	Butler County	48	-3.2%
33	Union County	47.9	-3.4%
34	Armstrong County	47.8	-3%
35	Schuylkill County	47.5	-3.7%
36	Blair County	47.4	-3.5%
37	Indiana County	47.2	-3.1%
38	Columbia County	47	-3.9%
38	Mercer County	47	-3.5%
40	Centre County	46.8	-3.1%
40	Venango County	46.8	-3.3%
42	Clarion County	46.7	-2.9%
43	Carbon County	46.5	-3.7%
44	Lycoming County	46.4	-3.1%
45	Clinton County	46.2	-3.3%
45	Jefferson County	46.2	-1.9%
45	Luzerne County	46.2	-3.5%
45	Monroe County	46.2	-2.9%
49	Clearfield County	46.1	-2.9%
50	Crawford County	45.9	-4%
50	Erie County	45.9	-3.8%
50	Somerset County	45.9	-2.5%
50	Wyoming County	45.9	-3.2%
54	Forest County	45.8	-3%
54	Pike County	45.8	-3.4%
56	Cambria County	45.7	-3.4%
56	Lackawanna County	45.7	-3.2%
58	Cameron County	45.2	-3.6%
58	Elk County	45.2	-2.4%
60	Bradford County	45	-3.6%
61	Susquehanna County	44.9	-3.2%
61	Warren County	44.9	-3.4%
63	Wayne County	44.8	-3.7%
64	Tioga County	44.1	-4.1%
65	McKean County	43.9	-3.7%
66	Potter County	43.7	-4%
66	Sullivan County	43.7	-3.5%

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, 2014) [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, 2014. 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=2014. 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, 2014. 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=2014.

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, 2014 [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=2014 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_pennsylvania_by_2014,
  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, 2014}},
  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=2014. 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, 2014
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=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/pennsylvania-counties?period=2014.
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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Questions

Which county has the highest average annual temperature?

Philadelphia County, with 54 °F in 2014, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Sullivan County, with 43.7 °F in 2014.

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.