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 | 7.6 | 8.6 | 9.7 | 11.6 | 14.3 | 16.3 | 18.5 | 18.8 | 17.7 | 13.5 | 9.8 | 7.8 |
| Average low | 1.4 | 1.9 | 2.3 | 3.7 | 6.2 | 8.6 | 10.2 | 10.6 | 8.9 | 6 | 3.3 | 1.7 |
| Average | 4.5 | 5.3 | 6 | 7.7 | 10.2 | 12.4 | 14.4 | 14.8 | 13.3 | 9.8 | 6.6 | 4.7 |
| Record daily high | 20.1 | 18.9 | 18.3 | 22.8 | 27.6 | 32.2 | 32.8 | 32.8 | 29.4 | 23.9 | 21.1 | 15.6 |
| Date | Jan 12 1986 | Feb 07 1963 | Mar 09 1965 | Apr 25 1989 | May 16 1985 | Jun 09 1944 | Jul 12 1961 | Aug 08 1981 | Sep 09 1963 | Oct 07 1945 | Nov 03 1970 | Dec 02 1969 |
| Record daily low | -15 | -9.2 | -5.5 | -1.7 | -0.2 | 2.2 | 3.9 | 4.4 | -0.6 | -3.5 | -12.7 | -12.2 |
| Date | Jan 30 1969 | Feb 02 1989 | Mar 02 1989 | Apr 12 1968 | May 04 1988 | Jun 03 1976 | Jul 02 1971 | Aug 18 1973 | Sep 27 1972 | Oct 31 1984 | Nov 29 1985 | Dec 28 1968 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 423 | 371 | 347 | 247 | 165 | 138 | 77 | 94 | 133 | 340 | 471 | 451 |
| Annual average: 3257 | ||||||||||||
| Monthly snowfall (cm) | 12 | 10 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 10 |
| Annual average: 42 | ||||||||||||
| Monthly precipitation (mm) | 436 | 382 | 355 | 249 | 165 | 138 | 77 | 94 | 133 | 340 | 475 | 462 |
| Annual average: 3305 | ||||||||||||
| Single day record rainfall (mm) | 174 | 169 | 170 | 126 | 96 | 83 | 98 | 131 | 106 | 154 | 155 | 166 |
| Date | Jan 02 1962 | Feb 24 1982 | Mar 15 1969 | Apr 22 1981 | May 23 1973 | Jun 11 1987 | Jul 11 1972 | Aug 26 1975 | Sep 16 1968 | Oct 07 1967 | Nov 12 1975 | Dec 29 1962 |
| Single day record snowfall (cm) | 31 | 23 | 20 | 14 | 0 | 0 | 0 | 0 | 0 | 1 | 23 | 27 |
| Date | Jan 16 1969 | Feb 08 1994 | Mar 08 1974 | Apr 11 1972 | May 01 1943 | Jun 01 1943 | Jul 01 1942 | Aug 01 1942 | Sep 01 1942 | Oct 31 1984 | Nov 03 1973 | Dec 23 1998 |
| Single day record precipitation (mm) | 174 | 184 | 170 | 126 | 96 | 83 | 98 | 131 | 106 | 154 | 155 | 166 |
| Date | Jan 02 1962 | Feb 24 1982 | Mar 15 1969 | Apr 22 1981 | May 23 1973 | Jun 11 1987 | Jul 11 1972 | Aug 26 1975 | Sep 16 1968 | Oct 07 1967 | Nov 12 1975 | Dec 29 1962 |