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 | 5.4 | 8.2 | 11.1 | 14.5 | 17.8 | 20.4 | 23.6 | 23.9 | 20.9 | 14.6 | 8.6 | 5.3 |
| Average low | -0.6 | 0.6 | 2 | 4 | 7 | 9.8 | 11.4 | 11.5 | 8.7 | 5.5 | 2.3 | -0.3 |
| Average | 2.4 | 4.4 | 6.6 | 9.3 | 12.4 | 15.1 | 17.5 | 17.7 | 14.8 | 10.1 | 5.4 | 2.6 |
| Record daily high | 16 | 19.4 | 24.5 | 29 | 36.5 | 34.5 | 36.7 | 36.7 | 35.5 | 28.5 | 19 | 17 |
| Date | Jan 21 1981 | Feb 29 1968 | Mar 28 1994 | Apr 27 1987 | May 29 1983 | Jun 18 1982 | Jul 12 1961 | Aug 08 1978 | Sep 03 1988 | Oct 01 1987 | Nov 01 1980 | Dec 26 1980 |
| Record daily low | -20 | -15 | -9 | -3.3 | -1.1 | 1.1 | 4.4 | 3.3 | -1.7 | -7 | -18 | -19.4 |
| Date | Jan 23 1969 | Feb 19 1986 | Mar 03 1989 | Apr 01 1975 | May 07 1962 | Jun 03 1976 | Jul 03 1962 | Aug 18 1973 | Sep 13 1970 | Oct 29 1991 | Nov 28 1985 | Dec 29 1968 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 206 | 169 | 157 | 132 | 111 | 91 | 66 | 61 | 86 | 162 | 263 | 229 |
| Annual average: 1733 | ||||||||||||
| Monthly snowfall (cm) | 21 | 10 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 18 |
| Annual average: 54 | ||||||||||||
| Monthly precipitation (mm) | 227 | 179 | 159 | 133 | 111 | 91 | 66 | 61 | 86 | 162 | 267 | 247 |
| Annual average: 1788 | ||||||||||||
| Single day record rainfall (mm) | 102 | 98 | 63 | 61 | 53 | 46 | 86 | 57 | 67 | 58 | 92 | 101 |
| Date | Jan 18 1968 | Feb 23 1986 | Mar 15 1974 | Apr 19 1997 | May 05 1997 | Jun 01 1968 | Jul 11 1983 | Aug 26 1991 | Sep 16 1968 | Oct 01 1981 | Nov 09 1990 | Dec 25 1980 |
| Single day record snowfall (cm) | 27 | 24 | 17 | 10 | 0 | 0 | 0 | 0 | 0 | 4 | 20 | 27 |
| Date | Jan 20 1996 | Feb 14 1995 | Mar 01 1962 | Apr 12 1981 | May 01 1961 | Jun 01 1961 | Jul 01 1959 | Aug 01 1959 | Sep 01 1959 | Oct 31 1984 | Nov 27 1964 | Dec 29 1990 |
| Single day record precipitation (mm) | 102 | 98 | 63 | 61 | 53 | 46 | 86 | 57 | 67 | 58 | 92 | 101 |
| Date | Jan 18 1968 | Feb 23 1986 | Mar 15 1974 | Apr 19 1997 | May 05 1997 | Jun 01 1968 | Jul 11 1983 | Aug 26 1991 | Sep 16 1968 | Oct 01 1981 | Nov 09 1990 | Dec 25 1980 |