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 | 7.7 | 9.7 | 12.2 | 14.9 | 16.9 | 19 | 19.4 | 17.9 | 13.4 | 8.9 | 6.2 |
| Average low | 0.7 | 1.3 | 2.1 | 3.8 | 6.4 | 8.9 | 10.6 | 10.8 | 8.9 | 5.8 | 3.2 | 1.2 |
| Average | 3.4 | 4.5 | 5.9 | 8 | 10.7 | 12.9 | 14.8 | 15.1 | 13.4 | 9.6 | 6.1 | 3.7 |
| Record daily high | 19 | 16.5 | 20 | 24 | 27.2 | 30 | 31.7 | 33.5 | 28.9 | 24 | 17.2 | 15 |
| Date | Jan 10 1981 | Feb 26 1991 | Mar 28 1994 | Apr 30 1998 | May 31 1978 | Jun 30 1995 | Jul 03 1972 | Aug 09 1981 | Sep 20 1974 | Oct 05 1980 | Nov 03 1970 | Dec 27 1980 |
| Record daily low | -12.5 | -10.5 | -6.7 | -2.5 | 0 | 1.7 | 5 | 2.2 | -0.6 | -3.5 | -11.5 | -11.1 |
| Date | Jan 06 1982 | Feb 02 1989 | Mar 01 1971 | Apr 06 1982 | May 24 1975 | Jun 02 1976 | Jul 04 1986 | Aug 12 1972 | Sep 27 1972 | Oct 31 1984 | Nov 26 1985 | Dec 08 1972 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 486 | 437 | 382 | 239 | 161 | 117 | 64 | 86 | 144 | 368 | 574 | 554 |
| Annual average: 3611 | ||||||||||||
| Monthly snowfall (cm) | 14 | 17 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 16 |
| Annual average: 58 | ||||||||||||
| Monthly precipitation (mm) | 500 | 454 | 388 | 240 | 161 | 117 | 64 | 86 | 144 | 368 | 578 | 569 |
| Annual average: 3670 | ||||||||||||
| Single day record rainfall (mm) | 242 | 293 | 180 | 95 | 92 | 91 | 107 | 151 | 89 | 216 | 212 | 235 |
| Date | Jan 24 1993 | Feb 23 1986 | Mar 17 1997 | Apr 05 1970 | May 24 1974 | Jun 03 1974 | Jul 11 1972 | Aug 29 1991 | Sep 20 1972 | Oct 16 1975 | Nov 09 1989 | Dec 13 1979 |
| Single day record snowfall (cm) | 19 | 35 | 18 | 8 | 2 | 0 | 0 | 0 | 0 | 3 | 29 | 41 |
| Date | Jan 09 1980 | Feb 14 1995 | Mar 01 1991 | Apr 02 1975 | May 06 1999 | Jun 01 1970 | Jul 01 1970 | Aug 01 1970 | Sep 01 1970 | Oct 31 1984 | Nov 26 1985 | Dec 28 1996 |
| Single day record precipitation (mm) | 242 | 293 | 180 | 95 | 92 | 91 | 107 | 151 | 89 | 216 | 212 | 235 |
| Date | Jan 24 1993 | Feb 23 1986 | Mar 17 1997 | Apr 05 1970 | May 24 1974 | Jun 03 1974 | Jul 11 1972 | Aug 29 1991 | Sep 20 1972 | Oct 16 1975 | Nov 09 1989 | Dec 13 1979 |