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 | 3.9 | 7.5 | 11.6 | 15.2 | 18 | 20.9 | 23.8 | 24.5 | 20.9 | 14.7 | 7.6 | 4.1 |
| Average low | -0.9 | 0.9 | 2.9 | 5.2 | 8.4 | 11 | 13 | 13.3 | 10.9 | 7 | 2.6 | -0.5 |
| Average | 1.5 | 4.2 | 7.3 | 10.2 | 13.2 | 16 | 18.5 | 19 | 16 | 10.9 | 5.1 | 1.8 |
| Record daily high | 14.5 | 18.5 | 25 | 30.5 | 37.5 | 34 | 36.5 | 37.5 | 36.5 | 28.5 | 17.5 | 13.5 |
| Date | Jan 03 1984 | Feb 27 1988 | Mar 28 1994 | Apr 27 1987 | May 29 1983 | Jun 18 1982 | Jul 17 1995 | Aug 16 1977 | Sep 03 1988 | Oct 02 1993 | Nov 04 1980 | Dec 15 1980 |
| Record daily low | -17 | -18 | -8 | -1.5 | 0.5 | 5 | 7 | 7.5 | 3 | -10 | -20.5 | -18 |
| Date | Jan 06 1982 | Feb 01 1989 | Mar 03 1989 | Apr 08 1982 | May 12 1977 | Jun 03 1977 | Jul 18 1977 | Aug 29 1980 | Sep 16 1992 | Oct 31 1984 | Nov 27 1985 | Dec 29 1990 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 229 | 187 | 182 | 162 | 134 | 108 | 87 | 67 | 110 | 207 | 336 | 252 |
| Annual average: 2060 | ||||||||||||
| Monthly snowfall (cm) | 28 | 18 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 7 | 22 |
| Annual average: 81 | ||||||||||||
| Monthly precipitation (mm) | 257 | 205 | 187 | 163 | 134 | 108 | 87 | 67 | 110 | 208 | 343 | 273 |
| Annual average: 2142 | ||||||||||||
| Single day record rainfall (mm) | 101 | 111 | 72 | 83 | 87 | 37 | 107 | 57 | 58 | 72 | 116 | 121 |
| Date | Jan 03 1984 | Feb 23 1986 | Mar 18 1997 | Apr 03 1991 | May 12 1986 | Jun 12 1992 | Jul 11 1983 | Aug 04 1996 | Sep 05 1984 | Oct 26 1986 | Nov 07 1995 | Dec 13 1979 |
| Single day record snowfall (cm) | 27 | 28 | 22 | 7 | 0 | 0 | 0 | 0 | 0 | 6 | 32 | 39 |
| Date | Jan 16 1982 | Feb 15 1986 | Mar 01 1991 | Apr 14 2000 | May 01 1977 | Jun 01 1977 | Jul 01 1977 | Aug 01 1977 | Sep 01 1977 | Oct 28 1984 | Nov 01 1984 | Dec 30 1990 |
| Single day record precipitation (mm) | 101 | 111 | 72 | 83 | 87 | 37 | 107 | 57 | 58 | 72 | 116 | 121 |
| Date | Jan 03 1984 | Feb 23 1986 | Mar 18 1997 | Apr 03 1991 | May 12 1986 | Jun 12 1992 | Jul 11 1983 | Aug 04 1996 | Sep 05 1984 | Oct 26 1986 | Nov 07 1995 | Dec 13 1979 |