| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average Max Temperature °C ( °F) | -4.5 (23.9) | -1.3 (29.7) | 5.6 (42.1) | 14.1 (57.4) | 20.6 (69.1) | 25.9 (78.6) | 28.3 (82.9) | 26.9 (80.4) | 22.1 (71.8) | 15.9 (60.6) | 6.6 (43.9) | -1.6 (29.1) | 13.2 (55.8) | ||
| Average Temperature °C ( °F) | -9.3 (15.3) | -6.3 (20.7) | 0.7 (33.3) | 8.2 (46.8) | 14.6 (58.3) | 19.8 (67.6) | 22.2 (72) | 20.9 (69.6) | 16.4 (61.5) | 10.2 (50.4) | 1.9 (35.4) | -6 (21.2) | 7.8 (46) | ||
| Average Min Temperature °C ( °F) | -14.2 (6.4) | -11.5 (11.3) | -4.2 (24.4) | 2.4 (36.3) | 8.6 (47.5) | 13.6 (56.5) | 16.2 (61.2) | 15 (59) | 10.6 (51.1) | 4.5 (40.1) | -2.8 (27) | -10.5 (13.1) | 2.3 (36.2) |
