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 | 8.2 | 9.2 | 10.3 | 12.5 | 15.1 | 16.9 | 19.1 | 19.2 | 18.5 | 13.9 | 10.4 | 8.2 |
| Average low | 2.4 | 1.9 | 2.8 | 4.5 | 6.8 | 9.3 | 10.9 | 11 | 9.3 | 6.6 | 4.2 | 2.6 |
| Average | 5.3 | 5.6 | 6.6 | 8.5 | 11 | 13.1 | 15 | 15.1 | 13.9 | 10.3 | 7.3 | 5.4 |
| Record daily high | 16.5 | 19 | 18.5 | 23.5 | 25 | 30.5 | 33.5 | 30 | 27 | 26.5 | 17 | 15 |
| Date | Jan 07 2001 | Feb 26 1992 | Mar 29 1994 | Apr 30 1998 | May 24 1993 | Jun 29 1995 | Jul 13 1996 | Aug 12 1992 | Sep 09 1989 | Oct 09 1996 | Nov 09 1997 | Dec 03 1988 |
| Record daily low | -9 | -11 | -4.5 | -2 | 0 | 2.5 | 5 | 5.5 | 1.5 | -2.5 | -5.5 | -9.5 |
| Date | Jan 30 1996 | Feb 04 1989 | Mar 02 1989 | Apr 04 1997 | May 11 1992 | Jun 04 1991 | Jul 02 1999 | Aug 30 1999 | Sep 15 1992 | Oct 31 1995 | Nov 22 1996 | Dec 20 1990 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 431 | 386 | 347 | 244 | 170 | 151 | 79 | 97 | 143 | 342 | 457 | 454 |
| Annual average: 3299 | ||||||||||||
| Monthly snowfall (cm) | 8 | 10 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 8 |
| Annual average: 34 | ||||||||||||
| Monthly precipitation (mm) | 439 | 395 | 352 | 245 | 170 | 151 | 79 | 97 | 143 | 342 | 460 | 462 |
| Annual average: 3334 | ||||||||||||
| Single day record rainfall (mm) | 154 | 169 | 158 | 129 | 91 | 85 | 135 | 141 | 115 | 168 | 185 | 159 |
| Date | Jan 26 1993 | Feb 03 1965 | Mar 08 1974 | Apr 19 1986 | May 24 1974 | Jun 16 1997 | Jul 11 1972 | Aug 07 1991 | Sep 03 1971 | Oct 06 1967 | Nov 06 1978 | Dec 15 1972 |
| Single day record snowfall (cm) | 25 | 19 | 15 | 9 | 0 | 0 | 0 | 0 | 0 | 1 | 18 | 26 |
| Date | Jan 03 1965 | Feb 24 1982 | Mar 01 1971 | Apr 01 1982 | May 01 1965 | Jun 01 1964 | Jul 01 1964 | Aug 01 1965 | Sep 01 1964 | Oct 31 1984 | Nov 26 1985 | Dec 30 1981 |
| Single day record precipitation (mm) | 154 | 169 | 158 | 129 | 91 | 85 | 135 | 141 | 115 | 168 | 185 | 159 |
| Date | Jan 26 1993 | Feb 03 1965 | Mar 08 1974 | Apr 19 1986 | May 24 1974 | Jun 16 1997 | Jul 11 1972 | Aug 07 1991 | Sep 03 1971 | Oct 06 1967 | Nov 06 1978 | Dec 15 1972 |