Sun Prairie Climate: Weather by Month and Best Time to Visit
Best months for Sun Prairie: September, July, August.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -3°C | -10°C | 40 mm | 8 | – | – | 4.0 |
| February | 0°C | -9°C | 40 mm | 6 | – | – | 4.2 |
| March | 7°C | -3°C | 60 mm | 9 | – | – | 5.1 |
| April | 14°C | 3°C | 99 mm | 12 | – | – | 6.2 |
| May | 21°C | 10°C | 101 mm | 12 | – | – | 7.2 |
| June | 26°C | 15°C | 109 mm | 12 | – | – | 7.3 |
| July | 28°C | 18°C | 87 mm | 10 | – | – | 7.7 |
| August | 26°C | 17°C | 94 mm | 10 | – | – | 7.6 |
| September | 23°C | 12°C | 78 mm | 9 | – | – | 7.9 |
| October | 15°C | 6°C | 74 mm | 9 | – | – | 6.9 |
| November | 7°C | -1°C | 54 mm | 8 | – | – | 5.4 |
| December | 0°C | -7°C | 47 mm | 7 | – | – | 4.1 |