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 | 5.3 | 6.8 | 9.1 | 12.6 | 16.4 | 19 | 22.1 | 22.1 | 18.8 | 12.5 | 7.6 | 5 |
| Average low | 0.3 | 0.7 | 1.9 | 3.8 | 6.8 | 10 | 11.9 | 11.9 | 9 | 5.7 | 2.5 | 0.5 |
| Average | 2.8 | 3.8 | 5.5 | 8.2 | 11.6 | 14.6 | 17 | 17 | 13.9 | 9.1 | 5.1 | 2.8 |
| Record daily high | 15 | 17.8 | 18.5 | 25.6 | 34.1 | 32.2 | 34.4 | 32.8 | 31.5 | 24.9 | 15.6 | 13.3 |
| Date | Jan 20 1968 | Feb 27 1968 | Mar 28 1994 | Apr 27 1987 | May 29 1983 | Jun 17 1969 | Jul 29 1960 | Aug 08 1960 | Sep 03 1988 | Oct 01 1987 | Nov 01 1970 | Dec 01 1958 |
| Record daily low | -16.7 | -15 | -12.2 | -5 | -4.4 | 1.7 | 3.9 | 1.7 | -1.1 | -5.5 | -14.4 | -13.9 |
| Date | Jan 30 1969 | Feb 15 1956 | Mar 04 1955 | Apr 30 1954 | May 01 1954 | Jun 18 1954 | Jul 02 1962 | Aug 19 1958 | Sep 29 1961 | Oct 31 1984 | Nov 14 1955 | Dec 16 1964 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 142 | 107 | 108 | 81 | 78 | 74 | 40 | 45 | 56 | 133 | 178 | 144 |
| Annual average: 1185 | ||||||||||||
| Monthly snowfall (cm) | 19 | 11 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 17 |
| Annual average: 58 | ||||||||||||
| Monthly precipitation (mm) | 161 | 117 | 113 | 81 | 78 | 74 | 40 | 45 | 56 | 133 | 185 | 161 |
| Annual average: 1243 | ||||||||||||
| Single day record rainfall (mm) | 56 | 47 | 69 | 31 | 66 | 57 | 35 | 44 | 52 | 80 | 45 | 63 |
| Date | Jan 17 1968 | Feb 10 1983 | Mar 17 1997 | Apr 28 1992 | May 14 1998 | Jun 10 1995 | Jul 11 1968 | Aug 29 1991 | Sep 28 1971 | Oct 23 1968 | Nov 19 1991 | Dec 12 1960 |
| Single day record snowfall (cm) | 48 | 28 | 30 | 3 | 0 | 0 | 0 | 0 | 0 | 6 | 15 | 28 |
| Date | Jan 25 1954 | Feb 23 1957 | Mar 03 1996 | Apr 02 1975 | May 01 1954 | Jun 01 1954 | Jul 01 1954 | Aug 17 1954 | Sep 01 1954 | Oct 31 1984 | Nov 30 1975 | Dec 12 1975 |
| Single day record precipitation (mm) | 56 | 53 | 69 | 31 | 66 | 57 | 35 | 44 | 52 | 80 | 45 | 63 |
| Date | Jan 17 1968 | Feb 23 1957 | Mar 17 1997 | Apr 28 1992 | May 14 1998 | Jun 10 1995 | Jul 11 1968 | Aug 29 1991 | Sep 28 1971 | Oct 23 1968 | Nov 19 1991 | Dec 12 1960 |