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 | -1.1 | -0.2 | 4.6 | 11.3 | 18.5 | 23.5 | 26.4 | 25.3 | 20.7 | 13.8 | 7.4 | 1.8 |
| Average low | -7.3 | -6.3 | -2 | 3.8 | 9.9 | 14.8 | 17.9 | 17.3 | 13.2 | 7.3 | 2.2 | -3.7 |
| Average | -4.2 | -3.2 | 1.3 | 7.6 | 14.2 | 19.2 | 22.2 | 21.3 | 17 | 10.6 | 4.8 | -0.9 |
| Record daily high | 16.1 | 14.4 | 26.7 | 32.2 | 34.4 | 36.7 | 40.6 | 38.9 | 37.8 | 30 | 23.9 | 19.9 |
| Date | Jan 25 1967 | Feb 25 1976 | Mar 28 1946 | Apr 22 1842 | May 18 1962 | Jun 30 1964 | Jul 08 1936 | Aug 13 1918 | Sep 02 1953 | Oct 07 1963 | Nov 01 1950 | Dec 03 1982 |
| Record daily low | -32.8 | -31.7 | -26.7 | -15 | -3.9 | -2.2 | 3.9 | 4.4 | -2.2 | -8.9 | -20.6 | -30 |
| Date | Jan 10 1859 | Feb 05 1855 | Mar 03 1868 | Apr 01 1923 | May 06 1854 | Jun 10 1842 | Jul 12 1843 | Aug 18 1855 | Sep 22 1842 | Oct 31 1844 | Nov 30 1875 | Dec 29 1933 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Monthly rainfall (mm) | 29 | 26 | 42 | 63 | 73 | 72 | 67 | 80 | 83 | 65 | 67 | 42 |
| Annual average: 709 | ||||||||||||
| Monthly snowfall (cm) | 38 | 27 | 22 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 32 |
| Annual average: 133 | ||||||||||||
| Monthly precipitation (mm) | 61 | 50 | 66 | 70 | 73 | 72 | 67 | 80 | 83 | 65 | 76 | 71 |
| Annual average: 834 | ||||||||||||
| Single day record rainfall (mm) | 64 | 43 | 44 | 60 | 69 | 64 | 99 | 94 | 88 | 87 | 80 | 50 |
| Date | Jan 31 1843 | Feb 13 1855 | Mar 19 1881 | Apr 03 1850 | May 21 1894 | Jun 28 1957 | Jul 27 1897 | Aug 15 1905 | Sep 14 1843 | Oct 15 1954 | Nov 02 1861 | Dec 05 1870 |
| Single day record snowfall (cm) | 40 | 46 | 41 | 21 | 8 | 0 | 0 | 0 | 0 | 12 | 31 | 48 |
| Date | Jan 23 1966 | Feb 20 1846 | Mar 27 1870 | Apr 20 1901 | May 01 1875 | Jun 01 1840 | Jul 01 1840 | Aug 01 1840 | Sep 01 1840 | Oct 21 1969 | Nov 24 1950 | Dec 11 1944 |
| Single day record precipitation (mm) | 52 | 53 | 44 | 60 | 69 | 64 | 99 | 94 | 88 | 87 | 80 | 50 |
| Date | Jan 01 1932 | Feb 25 1965 | Mar 19 1881 | Apr 03 1850 | May 21 1894 | Jun 28 1957 | Jul 27 1897 | Aug 15 1905 | Sep 14 1843 | Oct 15 1954 | Nov 02 1861 | Dec 05 1870 |