Greenville borough, Pennsylvania

Official LSAD Designation: Greenville borough • Census GEOID: 4231328 • Mercer County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Greenville borough.

Reference Weather Station: JAMESTOWN 2 NW, PA US (ID: USC00364325) • Located 7.8 miles from community center • Elevation: 317.0 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	33.7°	16.4°	25.0°	3.16"
February	36.3°	16.5°	26.4°	2.26"
March	45.2°	24.3°	34.7°	3.00"
April	59.1°	34.7°	46.9°	3.93"
May	69.5°	45.6°	57.6°	3.92"
June	77.5°	54.4°	66.0°	4.90"
July	81.1°	58.7°	69.9°	4.63"
August	79.7°	57.1°	68.4°	3.77"
September	73.6°	50.5°	62.0°	4.24"
October	61.9°	40.0°	50.9°	3.55"
November	49.5°	31.1°	40.3°	3.22"
December	38.6°	23.2°	30.9°	3.22"

2010–2025, completed calendar years only.

NOAA station JAMESTOWN 2 NW, PA US (ID: USC00364325) • 7.8 miles from community center .

This is the same reference station used for monthly normals.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

Annual temperature data table (°F)

Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year	Annual mean (°F)	Annual mean of daily highs (°F)	Annual mean of daily lows (°F)
2010	48.1	58.3	38.0
2011	49.0	58.8	39.3
2012	50.1	61.4	38.8
2013	47.4	58.3	36.6
2014	45.8	56.5	35.0
2015	47.6	59.3	35.8
2016	49.8	61.1	38.6
2017	50.0	60.3	39.6
2018	48.7	58.0	39.3
2019	48.5	58.3	38.7
2020	Unavailable	Unavailable	Unavailable
2021	49.7	59.5	40.0
2022	47.8	58.2	37.3
2023	50.0	59.9	40.1
2024	51.1	61.3	40.9
2025	48.4	59.2	37.7

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.