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 | 5.5 | 7 | 9.9 | 13.2 | 17.2 | 19.5 | 22.6 | 22.8 | 19.4 | 12.9 | 7.4 | 4.9 |
| Average low | 0.4 | 0.7 | 1.8 | 3.8 | 7 | 9.7 | 11.7 | 11.7 | 9 | 5.3 | 1.9 | 0.1 |
| Average | 3 | 3.8 | 5.9 | 8.5 | 12.1 | 14.6 | 17.3 | 17.3 | 14.2 | 9.1 | 4.7 | 2.5 |
| Record daily high | 12.5 | 15.5 | 18.5 | 26.5 | 33.5 | 34 | 34 | 34 | 32.5 | 24 | 15.5 | 14 |
| Date | Jan 29 1989 | Feb 27 1986 | Mar 29 1994 | Apr 30 1998 | May 29 1983 | Jun 18 1982 | Jul 27 1998 | Aug 08 1981 | Sep 03 1988 | Oct 01 1987 | Nov 02 1981 | Dec 25 1980 |
| Record daily low | -13 | -13 | -5.5 | -2.5 | -1 | 2.5 | 5 | 6 | 1 | -7.5 | -14.5 | -12.5 |
| Date | Jan 05 1982 | Feb 01 1989 | Mar 03 1989 | Apr 18 1982 | May 11 1985 | Jun 16 1996 | Jul 07 1981 | Aug 20 1980 | Sep 28 1983 | Oct 31 1984 | Nov 27 1985 | Dec 23 1983 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 176 | 153 | 129 | 81 | 61 | 53 | 37 | 42 | 50 | 153 | 226 | 205 |
| Annual average: 1366 | ||||||||||||
| Monthly snowfall (cm) | 29 | 17 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 10 | 21 |
| Annual average: 87 | ||||||||||||
| Monthly precipitation (mm) | 206 | 169 | 138 | 82 | 61 | 53 | 37 | 42 | 50 | 155 | 236 | 226 |
| Annual average: 1453 | ||||||||||||
| Single day record rainfall (mm) | 109 | 95 | 101 | 59 | 36 | 36 | 40 | 40 | 51 | 65 | 86 | 84 |
| Date | Jan 17 1968 | Feb 07 1969 | Mar 17 1997 | Apr 03 1969 | May 04 1963 | Jun 01 1962 | Jul 16 1974 | Aug 07 1991 | Sep 16 1997 | Oct 23 1982 | Nov 14 1983 | Dec 21 1986 |
| Single day record snowfall (cm) | 54 | 36 | 47 | 10 | 0 | 0 | 0 | 0 | 0 | 32 | 31 | 46 |
| Date | Jan 03 1978 | Feb 14 1995 | Mar 03 1996 | Apr 11 1981 | May 01 1960 | Jun 01 1960 | Jul 01 1960 | Aug 01 1960 | Sep 01 1960 | Oct 31 1984 | Nov 30 1970 | Dec 18 1964 |
| Single day record precipitation (mm) | 109 | 99 | 101 | 59 | 36 | 36 | 40 | 40 | 51 | 65 | 86 | 84 |
| Date | Jan 17 1968 | Feb 07 1969 | Mar 17 1997 | Apr 03 1969 | May 04 1963 | Jun 01 1962 | Jul 16 1974 | Aug 07 1991 | Sep 16 1997 | Oct 23 1982 | Nov 14 1983 | Dec 21 1986 |