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 | 6.3 | 7.5 | 9.3 | 12.1 | 15.8 | 18.5 | 21 | 21.1 | 17.8 | 12.8 | 8.8 | 6.6 |
| Average low | 2.9 | 3.5 | 4.5 | 6.5 | 9.6 | 12.3 | 14.5 | 14.8 | 12.1 | 8.6 | 5.3 | 3.3 |
| Average | 4.6 | 5.5 | 6.9 | 9.3 | 12.7 | 15.4 | 17.8 | 18 | 15 | 10.7 | 7.1 | 5 |
| Record daily high | 13.2 | 14.3 | 15.6 | 20.7 | 28.4 | 29.9 | 29.4 | 32.2 | 26.6 | 21.1 | 15.6 | 13.3 |
| Date | Jan 30 1989 | Feb 27 1986 | Mar 11 1965 | Apr 27 1987 | May 29 1983 | Jun 01 1978 | Jul 12 1961 | Aug 04 1961 | Sep 03 1988 | Oct 01 1975 | Nov 11 1991 | Dec 14 1962 |
| Record daily low | -7.2 | -10.1 | -3.3 | -1.1 | 3.3 | 5.6 | 9 | 8.9 | 3.9 | -0.4 | -7.3 | -11.7 |
| Date | Jan 29 1969 | Feb 13 1990 | Mar 03 1976 | Apr 03 1975 | May 01 1970 | Jun 01 1966 | Jul 01 1979 | Aug 18 1973 | Sep 27 1972 | Oct 31 1984 | Nov 27 1985 | Dec 28 1968 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 118 | 99 | 85 | 66 | 61 | 57 | 40 | 36 | 53 | 101 | 155 | 135 |
| Annual average: 1004 | ||||||||||||
| Monthly snowfall (cm) | 9 | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 10 |
| Annual average: 30 | ||||||||||||
| Monthly precipitation (mm) | 127 | 105 | 86 | 66 | 61 | 57 | 40 | 36 | 53 | 101 | 158 | 145 |
| Annual average: 1035 | ||||||||||||
| Single day record rainfall (mm) | 78 | 49 | 52 | 32 | 29 | 42 | 37 | 42 | 69 | 62 | 50 | 66 |
| Date | Jan 18 1968 | Feb 11 1983 | Mar 17 1997 | Apr 27 1962 | May 02 1963 | Jun 10 1972 | Jul 19 1968 | Aug 04 1962 | Sep 01 1983 | Oct 21 1963 | Nov 03 1989 | Dec 25 1972 |
| Single day record snowfall (cm) | 23 | 23 | 17 | 5 | 1 | 0 | 0 | 0 | 0 | 2 | 13 | 41 |
| Date | Jan 13 1971 | Feb 12 1975 | Mar 15 1997 | Apr 03 1975 | May 10 1985 | Jun 01 1958 | Jul 01 1958 | Aug 01 1958 | Sep 01 1958 | Oct 28 1991 | Nov 17 1996 | Dec 31 1968 |
| Single day record precipitation (mm) | 78 | 49 | 52 | 32 | 29 | 42 | 37 | 42 | 69 | 62 | 53 | 66 |
| Date | Jan 18 1968 | Feb 11 1983 | Mar 17 1997 | Apr 27 1962 | May 02 1963 | Jun 10 1972 | Jul 19 1968 | Aug 04 1962 | Sep 01 1983 | Oct 21 1963 | Nov 29 1964 | Dec 25 1972 |