| Month | Max Air Temp | Min Air Temp | Precipitation | ||||||||||
| 2009 | 2010 | 2011 | Avg.† | 2009 | 2010 | 2011 | Avg. | 2009 | 2010 | 2011 | Avg. | ||
| -------˚C------- | -------˚C------- | -------mm------- | |||||||||||
| April | 10 | 18 | 11 | 13 | 1 | 4 | 2 | 0 | 16 | 37 | 46 | 35 | |
| May | 19 | 20 | 18 | 21 | 5 | 9 | 8 | 7 | 44 | 68 | 110 | 66 | |
| June | 24 | 25 | 24 | 25 | 12 | 14 | 14 | 13 | 82 | 86 | 101 | 89 | |
| July | 26 | 28 | 29 | 28 | 13 | 17 | 18 | 15 | 16 | 105 | 104 | 73 | |
| August | 25 | 28 | 28 | 27 | 13 | 16 | 16 | 14 | 47 | 68 | 73 | 64 | |
| Total | 205 | 364 | 434 | 327 | |||||||||