The weather statistics displayed here represent the value of each meteorological parameter for each month of the year. The sampling period for this data covers 30 years. Record maximums and minimums are updated annually.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Average high | 4.7 | 7.2 | 10 | 13.3 | 16.5 | 19 | 22 | 22.4 | 19.5 | 13.7 | 7.8 | 4.8 |
| Average low | -0.1 | 1.6 | 3.1 | 5.3 | 8.2 | 10.9 | 13.2 | 13.5 | 11.3 | 7.4 | 3 | 0.5 |
| Average | 2.3 | 4.4 | 6.6 | 9.3 | 12.4 | 15 | 17.6 | 18 | 15.4 | 10.6 | 5.4 | 2.7 |
| Record daily high | 16 | 18.9 | 24 | 28 | 34 | 32.2 | 35 | 35 | 33.5 | 26 | 17.8 | 16.5 |
| Date | Jan 10 1986 | Feb 27 1968 | Mar 28 1994 | Apr 27 1987 | May 28 1983 | Jun 01 1970 | Jul 30 1965 | Aug 08 1978 | Sep 03 1988 | Oct 01 1987 | Nov 03 1975 | Dec 26 1980 |
| Record daily low | -15.6 | -18 | -10 | -1.1 | 0 | 4 | 6.5 | 7.2 | 1.7 | -8 | -18 | -21.7 |
| Date | Jan 29 1969 | Feb 01 1989 | Mar 03 1976 | Apr 12 1968 | May 05 1965 | Jun 03 1991 | Jul 01 1979 | Aug 18 1973 | Sep 27 1972 | Oct 31 1984 | Nov 27 1985 | Dec 29 1968 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 195 | 166 | 165 | 146 | 126 | 108 | 72 | 66 | 94 | 173 | 260 | 219 |
| Annual average: 1789 | ||||||||||||
| Monthly snowfall (cm) | 29 | 17 | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 24 |
| Annual average: 85 | ||||||||||||
| Monthly precipitation (mm) | 224 | 183 | 171 | 148 | 126 | 108 | 72 | 66 | 94 | 173 | 268 | 243 |
| Annual average: 1875 | ||||||||||||
| Single day record rainfall (mm) | 102 | 114 | 74 | 69 | 51 | 79 | 87 | 61 | 67 | 88 | 112 | 102 |
| Date | Jan 18 1968 | Feb 23 1986 | Mar 18 1997 | Apr 28 1992 | May 29 1987 | Jun 16 1980 | Jul 11 1983 | Aug 30 1991 | Sep 05 1984 | Oct 26 1986 | Nov 09 1990 | Dec 25 1980 |
| Single day record snowfall (cm) | 28 | 37 | 20 | 12 | 8 | 0 | 0 | 0 | 0 | 4 | 43 | 31 |
| Date | Jan 10 1969 | Feb 22 1982 | Mar 15 1997 | Apr 19 1985 | May 04 1965 | Jun 01 1963 | Jul 01 1963 | Aug 01 1963 | Sep 01 1963 | Oct 31 1984 | Nov 16 1996 | Dec 30 1968 |
| Single day record precipitation (mm) | 102 | 114 | 74 | 69 | 51 | 79 | 87 | 61 | 67 | 88 | 112 | 102 |
| Date | Jan 18 1968 | Feb 23 1986 | Mar 18 1997 | Apr 28 1992 | May 29 1987 | Jun 16 1980 | Jul 11 1983 | Aug 30 1991 | Sep 05 1984 | Oct 26 1986 | Nov 09 1990 | Dec 25 1980 |