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 | 4.9 | 6.6 | 8.8 | 12.1 | 15.4 | 17.7 | 20.9 | 21 | 18 | 12.1 | 7.3 | 4.8 |
| Average low | 0.6 | 1.7 | 2.9 | 4.9 | 7.7 | 10.3 | 12.7 | 13 | 11.2 | 7.1 | 3.1 | 0.7 |
| Average | 2.8 | 4.2 | 5.9 | 8.5 | 11.6 | 14 | 16.8 | 17 | 14.6 | 9.6 | 5.2 | 2.8 |
| Record daily high | 16.5 | 18.5 | 22 | 28 | 33 | 31.1 | 33.3 | 33.9 | 34.5 | 26.5 | 19.4 | 16.1 |
| Date | Jan 20 1981 | Feb 27 1986 | Mar 28 1994 | Apr 30 1998 | May 29 1983 | Jun 02 1970 | Jul 30 1965 | Aug 01 1965 | Sep 03 1988 | Oct 01 1987 | Nov 01 1974 | Dec 02 1969 |
| Record daily low | -13.9 | -14 | -7.8 | -3.3 | 0 | 3.9 | 5 | 3.3 | 2 | -7 | -14 | -19.4 |
| Date | Jan 29 1969 | Feb 01 1989 | Mar 03 1976 | Apr 13 1966 | May 05 1965 | Jun 01 1976 | Jul 01 1979 | Aug 23 1973 | Sep 30 2000 | Oct 31 1984 | Nov 27 1985 | Dec 29 1968 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 216 | 185 | 175 | 143 | 115 | 103 | 72 | 67 | 93 | 198 | 298 | 251 |
| Annual average: 1915 | ||||||||||||
| Monthly snowfall (cm) | 29 | 21 | 10 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 33 |
| Annual average: 104 | ||||||||||||
| Monthly precipitation (mm) | 245 | 206 | 185 | 145 | 115 | 103 | 72 | 67 | 93 | 198 | 307 | 284 |
| Annual average: 2019 | ||||||||||||
| Single day record rainfall (mm) | 172 | 86 | 89 | 83 | 48 | 62 | 79 | 59 | 94 | 86 | 80 | 102 |
| Date | Jan 18 1968 | Feb 23 1986 | Mar 18 1997 | Apr 20 1972 | May 24 1974 | Jun 28 1984 | Jul 11 1972 | Aug 26 1991 | Sep 16 1968 | Oct 16 1975 | Nov 12 1998 | Dec 25 1972 |
| Single day record snowfall (cm) | 31 | 49 | 30 | 14 | 0 | 0 | 0 | 0 | 0 | 3 | 23 | 50 |
| Date | Jan 12 1971 | Feb 09 1999 | Mar 01 1997 | Apr 04 1982 | May 03 1965 | Jun 01 1965 | Jul 01 1965 | Aug 01 1965 | Sep 01 1965 | Oct 31 1984 | Nov 30 1968 | Dec 21 1996 |
| Single day record precipitation (mm) | 172 | 86 | 89 | 83 | 48 | 62 | 79 | 59 | 94 | 86 | 80 | 102 |
| Date | Jan 18 1968 | Feb 23 1986 | Mar 18 1997 | Apr 20 1972 | May 24 1974 | Jun 28 1984 | Jul 11 1972 | Aug 26 1991 | Sep 16 1968 | Oct 16 1975 | Nov 12 1998 | Dec 25 1972 |