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 | 6.9 | 8.4 | 10.5 | 13.4 | 16.6 | 19.3 | 21.9 | 22 | 19.4 | 14.2 | 9.5 | 6.9 |
| Average low | 0.7 | 1.4 | 2.3 | 4.1 | 6.9 | 9.3 | 10.8 | 10.8 | 8.4 | 5.3 | 2.7 | 1 |
| Average | 3.8 | 4.9 | 6.4 | 8.8 | 11.8 | 14.4 | 16.4 | 16.4 | 14 | 9.8 | 6.1 | 4 |
| Record daily high | 15.4 | 18.3 | 21.4 | 26.3 | 31.5 | 33.3 | 36.1 | 34.4 | 31.1 | 27.6 | 18.3 | 16.1 |
| Date | Jan 04 1984 | Feb 10 1963 | Mar 28 1994 | Apr 30 1998 | May 28 1983 | Jun 30 1942 | Jul 16 1941 | Aug 09 1960 | Sep 05 1944 | Oct 01 1987 | Nov 03 1975 | Dec 21 1940 |
| Record daily low | -15.6 | -15 | -10 | -3.9 | -1.1 | 2.1 | 4.1 | 4.4 | -1.1 | -4.4 | -13.3 | -14.4 |
| Date | Jan 28 1950 | Feb 01 1950 | Mar 03 1989 | Apr 05 1956 | May 01 1954 | Jun 03 1991 | Jul 02 1979 | Aug 18 1973 | Sep 27 1972 | Oct 28 1956 | Nov 14 1955 | Dec 16 1964 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 122 | 99 | 76 | 44 | 36 | 32 | 20 | 24 | 30 | 76 | 144 | 138 |
| Annual average: 841 | ||||||||||||
| Monthly snowfall (cm) | 15 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 14 |
| Annual average: 43 | ||||||||||||
| Monthly precipitation (mm) | 137 | 108 | 78 | 45 | 36 | 32 | 20 | 24 | 30 | 76 | 147 | 151 |
| Annual average: 883 | ||||||||||||
| Single day record rainfall (mm) | 93 | 56 | 54 | 53 | 38 | 41 | 50 | 42 | 45 | 57 | 68 | 73 |
| Date | Jan 18 1986 | Feb 16 1949 | Mar 21 1948 | Apr 03 1991 | May 27 1948 | Jun 22 1955 | Jul 20 1993 | Aug 06 1995 | Sep 01 1983 | Oct 21 1963 | Nov 02 1955 | Dec 25 1972 |
| Single day record snowfall (cm) | 29 | 26 | 21 | 5 | 0 | 0 | 0 | 0 | 0 | 5 | 16 | 65 |
| Date | Jan 13 1971 | Feb 17 1989 | Mar 03 1960 | Apr 14 1955 | May 01 1941 | Jun 01 1941 | Jul 01 1940 | Aug 01 1940 | Sep 01 1940 | Oct 28 1991 | Nov 26 1985 | Dec 29 1996 |
| Single day record precipitation (mm) | 93 | 56 | 54 | 53 | 38 | 41 | 50 | 42 | 45 | 57 | 68 | 81 |
| Date | Jan 18 1986 | Feb 16 1949 | Mar 21 1948 | Apr 03 1991 | May 27 1948 | Jun 22 1955 | Jul 20 1993 | Aug 06 1995 | Sep 01 1983 | Oct 21 1963 | Nov 02 1955 | Dec 29 1996 |