Chambersburg Climate: Weather by Month and Best Time to Visit
Best months for Chambersburg: August, September, July, June.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 3°C | -5°C | 80 mm | 9 | – | – | 4.4 |
| February | 5°C | -4°C | 69 mm | 9 | – | – | 4.8 |
| March | 10°C | 0°C | 96 mm | 11 | – | – | 5.5 |
| April | 17°C | 6°C | 92 mm | 12 | – | – | 6.7 |
| May | 22°C | 12°C | 98 mm | 12 | – | – | 7.3 |
| June | 27°C | 16°C | 89 mm | 11 | – | – | 7.5 |
| July | 29°C | 19°C | 89 mm | 10 | – | – | 7.6 |
| August | 28°C | 18°C | 73 mm | 9 | – | – | 7.8 |
| September | 24°C | 14°C | 102 mm | 9 | – | – | 7.8 |
| October | 18°C | 8°C | 84 mm | 8 | – | – | 7.3 |
| November | 11°C | 3°C | 79 mm | 8 | – | – | 6.3 |
| December | 5°C | -2°C | 85 mm | 9 | – | – | 5.0 |