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 | 6.6 | 8.4 | 11 | 14.1 | 18 | 20.8 | 23.4 | 23.4 | 20.5 | 14.4 | 9.2 | 6.3 |
| Average low | 2.1 | 2.6 | 3.9 | 5.8 | 9 | 11.4 | 13.8 | 13.8 | 11.2 | 6.9 | 3.9 | 2.3 |
| Average | 4.4 | 5.5 | 7.5 | 10 | 13.5 | 16.1 | 18.6 | 18.6 | 15.9 | 10.7 | 6.6 | 4.3 |
| Record daily high | 14.5 | 15 | 20 | 24.5 | 29 | 32 | 33.5 | 32 | 28.5 | 23.5 | 17 | 13.5 |
| Date | Jan 29 1995 | Feb 27 1992 | Mar 28 1994 | Apr 30 1998 | May 12 1993 | Jun 30 1995 | Jul 27 1998 | Aug 04 1993 | Sep 14 1979 | Oct 01 1992 | Nov 08 1996 | Dec 03 1993 |
| Record daily low | -8.5 | -5 | -1 | 0.5 | 2 | 4 | 5 | 9 | 5 | -1 | -6 | -8.5 |
| Date | Jan 30 1996 | Feb 03 1996 | Mar 03 1995 | Apr 06 1992 | May 08 1999 | Jun 14 1979 | Jul 03 1979 | Aug 04 1979 | Sep 28 1979 | Oct 29 1991 | Nov 23 1993 | Dec 20 1998 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 204 | 146 | 131 | 65 | 47 | 45 | 30 | 36 | 37 | 133 | 206 | 227 |
| Annual average: 1306 | ||||||||||||
| Monthly snowfall (cm) | 27 | 12 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 24 |
| Annual average: 73 | ||||||||||||
| Monthly precipitation (mm) | 230 | 158 | 136 | 65 | 47 | 45 | 30 | 36 | 37 | 134 | 210 | 251 |
| Annual average: 1380 | ||||||||||||
| Single day record rainfall (mm) | 96 | 81 | 86 | 52 | 62 | 53 | 39 | 61 | 65 | 66 | 85 | 78 |
| Date | Jan 17 1941 | Feb 07 1945 | Mar 17 1997 | Apr 14 1937 | May 28 1948 | Jun 11 2000 | Jul 16 1974 | Aug 22 1975 | Sep 21 1924 | Oct 19 1956 | Nov 07 1995 | Dec 25 1972 |
| Single day record snowfall (cm) | 46 | 70 | 28 | 1 | 0 | 0 | 0 | 0 | 0 | 14 | 22 | 49 |
| Date | Jan 21 1935 | Feb 14 1923 | Mar 10 1967 | Apr 03 1975 | May 01 1919 | Jun 01 1919 | Jul 01 1919 | Aug 01 1919 | Sep 01 1919 | Oct 28 1991 | Nov 21 1921 | Dec 28 1996 |
| Single day record precipitation (mm) | 96 | 81 | 86 | 52 | 62 | 53 | 39 | 61 | 65 | 66 | 85 | 81 |
| Date | Jan 17 1941 | Feb 07 1945 | Mar 17 1997 | Apr 14 1937 | May 28 1948 | Jun 11 2000 | Jul 16 1974 | Aug 22 1975 | Sep 21 1924 | Oct 19 1956 | Nov 07 1995 | Dec 21 1967 |