Warm-summer humid continental climate
Climate Jamestown - Pennsylvania
Annual high58ºF
Annual low37ºF
Precipitation42.48 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 32 | 16 | 2.69 | 17 |
| Feb | 35 | 17 | 2.29 | 12 |
| Mar | 45 | 24 | 2.84 | 10 |
| Apr | 58 | 35 | 3.61 | 3 |
| May | 68 | 44 | 4.00 | 0 |
| Jun | 76 | 54 | 4.29 | 0 |
| Jul | 80 | 58 | 4.51 | 0 |
| Aug | 79 | 57 | 3.77 | 0 |
| Sep | 72 | 50 | 4.23 | 0 |
| Oct | 60 | 39 | 3.37 | 0 |
| Nov | 49 | 32 | 3.63 | 5 |
| Dec | 36 | 22 | 3.25 | 15 |
- JanHigh 32ºFLow 16ºFPrecip 2.69 inch
- FebHigh 35ºFLow 17ºFPrecip 2.29 inch
- MarHigh 45ºFLow 24ºFPrecip 2.84 inch
- AprHigh 58ºFLow 35ºFPrecip 3.61 inch
- MayHigh 68ºFLow 44ºFPrecip 4.00 inch
- JunHigh 76ºFLow 54ºFPrecip 4.29 inch
- JulHigh 80ºFLow 58ºFPrecip 4.51 inch
- AugHigh 79ºFLow 57ºFPrecip 3.77 inch
- SepHigh 72ºFLow 50ºFPrecip 4.23 inch
- OctHigh 60ºFLow 39ºFPrecip 3.37 inch
- NovHigh 49ºFLow 32ºFPrecip 3.63 inch
- DecHigh 36ºFLow 22ºFPrecip 3.25 inch
Climate summary
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.
Jamestown weather averages
Annual high58ºF
Annual low37ºF
Precipitation42.48 inch
Snowfall62 inch
Daily normals Jamestown - Pennsylvania - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 34.9 | 19.3 | 0.11 | 0.11 | 0.60 | 0.60 |
| Jan 2 | 34.7 | 19.1 | 0.22 | 0.22 | 1.10 | 1.10 |
| Jan 3 | 34.6 | 18.8 | 0.33 | 0.33 | 1.70 | 1.70 |
| Jan 4 | 34.5 | 18.6 | 0.44 | 0.44 | 2.30 | 2.30 |
| Jan 5 | 34.3 | 18.3 | 0.55 | 0.55 | 2.90 | 2.90 |
| Jan 6 | 34.2 | 18.1 | 0.66 | 0.66 | 3.50 | 3.50 |
| Jan 7 | 34.1 | 17.9 | 0.77 | 0.77 | 4.10 | 4.10 |
| Jan 8 | 34.0 | 17.7 | 0.88 | 0.88 | 4.70 | 4.70 |
| Jan 9 | 33.9 | 17.4 | 0.98 | 0.98 | 5.30 | 5.30 |
| Jan 10 | 33.8 | 17.2 | 1.09 | 1.09 | 5.90 | 5.90 |
| Jan 11 | 33.7 | 17.0 | 1.20 | 1.20 | 6.50 | 6.50 |
| Jan 12 | 33.6 | 16.8 | 1.30 | 1.30 | 7.20 | 7.20 |
| Jan 13 | 33.5 | 16.6 | 1.41 | 1.41 | 7.80 | 7.80 |
| Jan 14 | 33.4 | 16.4 | 1.52 | 1.52 | 8.40 | 8.40 |
| Jan 15 | 33.4 | 16.2 | 1.63 | 1.63 | 9.10 | 9.10 |
| Jan 16 | 33.3 | 16.1 | 1.74 | 1.74 | 9.70 | 9.70 |
| Jan 17 | 33.3 | 15.9 | 1.85 | 1.85 | 10.40 | 10.40 |
| Jan 18 | 33.3 | 15.7 | 1.96 | 1.96 | 11.00 | 11.00 |
| Jan 19 | 33.3 | 15.6 | 2.06 | 2.06 | 11.60 | 11.60 |
| Jan 20 | 33.3 | 15.5 | 2.16 | 2.16 | 12.20 | 12.20 |
| Jan 21 | 33.3 | 15.3 | 2.26 | 2.26 | 12.80 | 12.80 |
| Jan 22 | 33.3 | 15.2 | 2.36 | 2.36 | 13.40 | 13.40 |
| Jan 23 | 33.3 | 15.1 | 2.45 | 2.45 | 14.00 | 14.00 |
| Jan 24 | 33.3 | 15.0 | 2.55 | 2.55 | 14.60 | 14.60 |
| Jan 25 | 33.3 | 14.9 | 2.65 | 2.65 | 15.20 | 15.20 |
| Jan 26 | 33.4 | 14.9 | 2.74 | 2.74 | 15.70 | 15.70 |
| Jan 27 | 33.5 | 14.8 | 2.83 | 2.83 | 16.30 | 16.30 |
| Jan 28 | 33.5 | 14.8 | 2.91 | 2.91 | 16.90 | 16.90 |
| Jan 29 | 33.6 | 14.7 | 2.99 | 2.99 | 17.40 | 17.40 |
| Jan 30 | 33.7 | 14.7 | 3.08 | 3.08 | 18.00 | 18.00 |
| Jan 31 | 33.8 | 14.7 | 3.16 | 3.16 | 18.60 | 18.60 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Jamestown - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | – | – | 0.02 |
| Oct 2 | – | – | – |
| Oct 3 | – | – | – |
| Oct 4 | – | – | – |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | – | – | – |
| Oct 9 | – | – | – |
| Oct 10 | – | – | – |
| Oct 11 | – | – | – |
| Oct 12 | – | – | – |
| Oct 13 | – | – | – |
| Oct 14 | – | – | – |
| Oct 15 | – | – | – |
| Oct 16 | – | – | – |
| Oct 17 | – | – | – |
| Oct 18 | – | – | – |
| Oct 19 | – | – | – |
| Oct 20 | – | – | – |
| Oct 21 | – | – | – |
| Oct 22 | – | – | – |
| Oct 23 | – | – | – |
| Oct 24 | – | – | – |
| Oct 25 | – | – | – |
| Oct 26 | – | – | – |
| Oct 27 | – | – | – |
| Oct 28 | – | – | – |
| Oct 29 | – | – | – |
| Oct 30 | – | – | – |
| Oct 31 | 59.0 | 32.0 | 0.00 |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature59.0ºF · Oct 31
- Lowest max temperature59.0ºF · Oct 31
- Highest min temperature32.0ºF · Oct 31
- Lowest min temperature32.0ºF · Oct 31
Geo Jamestown - Pennsylvania
Location
- Country
- United States
- State
- Pennsylvania
- County
- Mercer
- City
- Jamestown
- Zip Code
- 16134
- Elevation
- 965 ft
- Longitude
- -80.44
- Latitude
- 41.48
- ICAO
- –
- IATA
- –