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 | -6 | -5.6 | -1.4 | 4 | 9.8 | 15 | 18.6 | 18.4 | 14.1 | 8.3 | 3.1 | -2.8 |
| Average high | -1.2 | -1.1 | 3 | 8.4 | 15 | 20.3 | 23.6 | 23.3 | 18.8 | 12.7 | 6.9 | 1.4 |
| Average low | -10.7 | -10.2 | -5.8 | -0.5 | 4.5 | 9.6 | 13.5 | 13.5 | 9.3 | 3.8 | -0.7 | -7.1 |
| Record daily high | 14.8 | 17.5 | 25.6 | 26.3 | 32.8 | 33.4 | 33.9 | 35 | 32.8 | 25.8 | 19.4 | 15 |
| Date | Jan 25 1999 | Feb 20 1994 | Mar 31 1998 | Apr 30 2004 | May 23 1977 | Jun 27 2001 | Jul 26 1963 | Aug 01 1995 | Sep 10 2002 | Oct 07 1990 | Nov 05 1961 | Dec 06 1953 |
| Record daily low | -28.5 | -27.3 | -22.4 | -12.8 | -4.4 | 0.6 | 6.1 | 4.4 | -0.8 | -6.7 | -13.1 | -23.3 |
| Date | Jan 31 1993 | Feb 07 1993 | Mar 07 1989 | Apr 05 1995 | May 08 1966 | Jun 10 1975 | Jul 02 1970 | Aug 30 1965 | Sep 28 1989 | Oct 22 1974 | Nov 27 1978 | Dec 25 1980 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Record humidex | 18.4 | 18.3 | 27.7 | 26.2 | 36 | 40.2 | 42.4 | 41.9 | 39.6 | 30.5 | 25.4 | 18 |
| Date | Jan 25 1999 | Feb 02 1976 | Mar 31 1998 | Apr 30 2004 | May 23 1977 | Jun 25 2005 | Jul 21 1977 | Aug 05 1988 | Sep 11 1961 | Oct 02 2002 | Nov 05 1982 | Dec 07 1972 |
| Days with humidex over 30 | 0 | 0 | 0 | 0 | 0 | 3 | 9 | 9 | 1 | 0 | 0 | 0 |
| Days with humidex over 35 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| Days with humidex over 40 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Record windchill | -40.4 | -41.1 | -33.9 | -24.4 | -10.9 | -5.6 | 3.7 | 0.7 | -3.6 | -10.1 | -23.9 | -35.6 |
| Date | Jan 18 1982 | Feb 13 1967 | Mar 07 1989 | Apr 05 1995 | May 11 1972 | Jun 17 1973 | Jul 08 1965 | Aug 30 1965 | Sep 29 1980 | Oct 24 1969 | Nov 27 1978 | Dec 25 1980 |
| Days with wind chill below -20 | 12 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 |
| Days with Wind chill below -30 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Days with Wind chill below -40 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |