| Month | Average | ||
| low | high | precip. | |
| January | –3° | 4° | 9.49cm |
| February | –2° | 5° | 7.18cm |
| March | 2° | 10° | 10.69cm |
| April | 7° | 16° | 11cm |
| May | 13° | 22° | 10.89cm |
| June | 18° | 26° | 9.78cm |
| July | 21° | 29° | 11.28cm |
| August | 20° | 28° | 11.01cm |
| September | 16° | 24° | 10.29cm |
| October | 10° | 18° | 10.47cm |
| November | 5° | 12° | 9.48cm |
| December | 0° | 7° | 8.96cm |