Harrisburg Climate: Weather by Month and Best Time to Visit
Best months for Harrisburg: August, September, May, June.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 4°C | -4°C | 83 mm | 9 | – | – | 4.5 |
| February | 6°C | -3°C | 72 mm | 9 | – | – | 4.9 |
| March | 11°C | 1°C | 97 mm | 11 | – | – | 5.7 |
| April | 18°C | 7°C | 92 mm | 11 | – | – | 6.9 |
| May | 23°C | 12°C | 90 mm | 12 | – | – | 7.5 |
| June | 27°C | 17°C | 88 mm | 11 | – | – | 7.5 |
| July | 30°C | 20°C | 91 mm | 11 | – | – | 7.4 |
| August | 29°C | 19°C | 79 mm | 10 | – | – | 7.8 |
| September | 25°C | 15°C | 108 mm | 9 | – | – | 7.7 |
| October | 18°C | 9°C | 87 mm | 8 | – | – | 7.4 |
| November | 12°C | 3°C | 80 mm | 8 | – | – | 6.4 |
| December | 6°C | -1°C | 88 mm | 9 | – | – | 5.0 |