Average annual temperature is 13.0 °C
Absolute maximum temperature: 35.1 °C
Absolute minimum temperature: -10.9 °C
Number of sunny days: 187 days
Number of rainy days: 171 days
Number of snow days: 7 days
Look at detailed online map of Borough of Chambersburg
* Weather data for Borough of Chambersburg United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 15.9 | 21.4 | 22.6 | 29.7 | 29.1 | 33.4 | 35.0 | 33.3 | 35.1 | 27.6 | 21.7 | 14.9 |
| Average daytime temperature (°C) | 8.0 | 10.6 | 11.4 | 20.3 | 22.4 | 26.7 | 30.9 | 29.3 | 25.2 | 19.5 | 11.7 | 9.0 |
| Average temperature (°C) | 4.2 | 4.6 | 5.4 | 13.4 | 15.6 | 20.2 | 24.8 | 23.2 | 19.5 | 14.0 | 6.1 | 4.7 |
| Average night temperature (°C) | 1.1 | -0.2 | 0.7 | 7.5 | 9.2 | 14.2 | 19.4 | 18.0 | 14.8 | 9.4 | 1.7 | 1.2 |
| Absolute minimum temperature (°C) | -3.6 | -10.9 | -6.1 | 0.3 | 2.5 | 9.0 | 15.9 | 14.2 | 8.7 | 2.4 | -5.9 | -4.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 4.9 | 6.9 | 7.4 | 9.2 | 10.7 | 10.5 | 12.2 | 10.8 | 8.7 | 7.7 | 7.6 | 4.4 |
| Precipitation (mm) | 80 | 35 | 76 | 88 | 33 | 80 | 104 | 77 | 108 | 46 | 53 | 94 |
| Sunny days | 14 | 18 | 11 | 17 | 20 | 12 | 8 | 11 | 19 | 18 | 22 | 17 |
| Rainy days | 17 | 7 | 18 | 13 | 11 | 18 | 23 | 20 | 11 | 13 | 7 | 13 |
| Snow days | 0 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
The best time to visit Borough of Chambersburg during the most sunny months:
The largest precipitation sum in Borough of Chambersburg is at