Climate Jamestown - Pennsylvania
Jan Ja Feb Fe Mar Ma Apr Ap May Ma Jun Ju Average high in ºF Av. high Hi 32 35 45 58 68 76 Average low in ºF Av. low Lo 16 17 24 35 44 54 Av. precipitation in inch Av. precip. Pre. 2.69 2.29 2.84 3.61 4.00 4.29 Av. snowfall in inch Snowfall Sn 17 12 10 3 0 0
Jul Ju Aug Au Sep Se Oct Oc Nov No Dec De Average high in ºF Av. high Hi 80 79 72 60 49 36 Average low in ºF Av. low Lo 58 57 50 39 32 22 Av. precipitation in inch Av. precip. Pre. 4.51 3.77 4.23 3.37 3.63 3.25 Av. snowfall in inch Snowfall Sn 0 0 0 0 5 15
What is the average weather in Jamestown, Pennsylvania? Jamestown experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm and fairly wet, with the most precipitation arriving during this season. Winters are cold and very snowy, often bringing significant snowfall, especially due to lake-effect influences. Precipitation is spread relatively evenly through the year, with winter moisture often arriving as snow.
January February March April May June July August September October November December
1 Jan 34.9 19.3 0.11 0.11 0.60 0.60 2 Jan 34.7 19.1 0.22 0.22 1.10 1.10 3 Jan 34.6 18.8 0.33 0.33 1.70 1.70 4 Jan 34.5 18.6 0.44 0.44 2.30 2.30 5 Jan 34.3 18.3 0.55 0.55 2.90 2.90 6 Jan 34.2 18.1 0.66 0.66 3.50 3.50 7 Jan 34.1 17.9 0.77 0.77 4.10 4.10 8 Jan 34.0 17.7 0.88 0.88 4.70 4.70 9 Jan 33.9 17.4 0.98 0.98 5.30 5.30 10 Jan 33.8 17.2 1.09 1.09 5.90 5.90 11 Jan 33.7 17.0 1.20 1.20 6.50 6.50 12 Jan 33.6 16.8 1.30 1.30 7.20 7.20 13 Jan 33.5 16.6 1.41 1.41 7.80 7.80 14 Jan 33.4 16.4 1.52 1.52 8.40 8.40 15 Jan 33.4 16.2 1.63 1.63 9.10 9.10 16 Jan 33.3 16.1 1.74 1.74 9.70 9.70 17 Jan 33.3 15.9 1.85 1.85 10.40 10.40 18 Jan 33.3 15.7 1.96 1.96 11.00 11.00 19 Jan 33.3 15.6 2.06 2.06 11.60 11.60 20 Jan 33.3 15.5 2.16 2.16 12.20 12.20 21 Jan 33.3 15.3 2.26 2.26 12.80 12.80 22 Jan 33.3 15.2 2.36 2.36 13.40 13.40 23 Jan 33.3 15.1 2.45 2.45 14.00 14.00 24 Jan 33.3 15.0 2.55 2.55 14.60 14.60 25 Jan 33.3 14.9 2.65 2.65 15.20 15.20 26 Jan 33.4 14.9 2.74 2.74 15.70 15.70 27 Jan 33.5 14.8 2.83 2.83 16.30 16.30 28 Jan 33.5 14.8 2.91 2.91 16.90 16.90 29 Jan 33.6 14.7 2.99 2.99 17.40 17.40 30 Jan 33.7 14.7 3.08 3.08 18.00 18.00 31 Jan 33.8 14.7 3.16 3.16 18.60 18.60
Weather history Jamestown - September 2026
Day 01 Sep - - 0.00 - - 02 Sep - - 0.42 - - 03 Sep - - 2.96 - - 04 Sep - - 0.84 - - 05 Sep - - 0.00 - - 06 Sep - - 0.00 - - 07 Sep - - 0.00 - - 08 Sep - - 0.00 - - 09 Sep - - 0.32 - - 10 Sep - - 0.09 - - 11 Sep - - 0.00 - - 12 Sep - - 0.11 - - 13 Sep - - 0.04 - - 14 Sep - - 0.00 - - 15 Sep - - - - - 16 Sep - - - - - 17 Sep - - - - - 18 Sep - - - - - 19 Sep - - - - - 20 Sep - - - - - 21 Sep - - - - - 22 Sep - - - - - 23 Sep - - - - - 24 Sep - - - - - 25 Sep - - - - - 26 Sep - - - - - 27 Sep - - - - - 28 Sep - - - - - 29 Sep - - - - - 30 Sep - - - - -
Past weather Jamestown
Sep 26 Normal Average high temperature Av. high temp. - ºF 72 ºF Average low temperature Av. low temp. - ºF 50 ºF Total precipitation Total precip. 4.78 inch 4.23 inch Total snowfall Total snowfall - inch 0 inch Highest max temperature Highest max temp. - ºF - Lowest max temperature Lowest max temp. - ºF - Highest min temperature Highest min temp. - ºF - Lowest min temperature Lowest min temp. - ºF -
× Past weather September 2026 incomplete - Missing data
Geo Jamestown - Pennsylvania
Country United States State Pennsylvania County Mercer City Jamestown Zip Code 16134 Longitude -80.44 dec. degr. Latitude 41.48 dec. degr. Altitude - Elevation
965ft ICAO - IATA -
Date and Time Jamestown - Pennsylvania
Local Time 01:55 AM Sunrise 07:21 AM Sunset 06:58 PM Day/Night Night Timezone Eastern Daylight Time Timezone DB America - New York
Map of Jamestown - Pennsylvania