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 | 6.6 | 8.9 | 12 | 15.1 | 18.4 | 21.1 | 23.7 | 23.8 | 20.1 | 14.5 | 9 | 6.2 |
| Average low | 0.2 | 1 | 2.5 | 4.7 | 7.8 | 10.5 | 12.2 | 12.2 | 9.5 | 6 | 2.5 | 0.2 |
| Average | 3.4 | 5 | 7.3 | 9.9 | 13.1 | 15.8 | 18 | 18 | 14.9 | 10.3 | 5.8 | 3.2 |
| Record daily high | 16.5 | 19.5 | 21.5 | 28.5 | 34.5 | 32 | 34 | 33 | 31.5 | 26 | 18.5 | 14 |
| Date | Jan 20 1981 | Feb 27 1986 | Mar 30 1995 | Apr 27 1987 | May 29 1983 | Jun 30 1987 | Jul 27 1998 | Aug 17 1977 | Sep 03 1988 | Oct 05 1980 | Nov 04 1980 | Dec 25 1980 |
| Record daily low | -15 | -14 | -7 | -2 | 0 | 0 | 4 | 4 | 1 | -6 | -15.5 | -16.5 |
| Date | Jan 29 1980 | Feb 03 1989 | Mar 03 1989 | Apr 01 1979 | May 05 1978 | Jun 09 1977 | Jul 03 1979 | Aug 20 1985 | Sep 29 1983 | Oct 31 1984 | Nov 28 1985 | Dec 30 1978 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 151 | 123 | 109 | 94 | 74 | 66 | 39 | 44 | 62 | 120 | 195 | 162 |
| Annual average: 1239 | ||||||||||||
| Monthly snowfall (cm) | 12 | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 13 |
| Annual average: 37 | ||||||||||||
| Monthly precipitation (mm) | 164 | 132 | 111 | 94 | 74 | 66 | 39 | 44 | 62 | 120 | 197 | 175 |
| Annual average: 1277 | ||||||||||||
| Single day record rainfall (mm) | 60 | 48 | 51 | 40 | 32 | 37 | 33 | 44 | 40 | 47 | 54 | 74 |
| Date | Jan 29 1997 | Feb 13 1982 | Mar 18 1997 | Apr 19 1997 | May 17 1989 | Jun 28 1984 | Jul 25 1995 | Aug 29 1991 | Sep 22 1986 | Oct 30 1981 | Nov 20 1980 | Dec 16 1979 |
| Single day record snowfall (cm) | 21 | 20 | 22 | 4 | 0 | 0 | 0 | 0 | 0 | 5 | 10 | 24 |
| Date | Jan 22 1982 | Feb 14 1995 | Mar 01 1991 | Apr 11 1981 | May 01 1977 | Jun 01 1977 | Jul 01 1977 | Aug 01 1977 | Sep 01 1977 | Oct 31 1984 | Nov 23 1977 | Dec 23 1998 |
| Single day record precipitation (mm) | 60 | 48 | 51 | 40 | 32 | 37 | 33 | 44 | 40 | 47 | 54 | 74 |
| Date | Jan 29 1997 | Feb 13 1982 | Mar 18 1997 | Apr 19 1997 | May 17 1989 | Jun 28 1984 | Jul 25 1995 | Aug 29 1991 | Sep 22 1986 | Oct 30 1981 | Nov 20 1980 | Dec 16 1979 |