| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average Max Temperature °C ( °F) | -5.4 (22.3) | -2.3 (27.9) | 4.5 (40.1) | 13.7 (56.7) | 21.6 (70.9) | 26.8 (80.2) | 28.8 (83.8) | 27.1 (80.8) | 22.2 (72) | 15.6 (60.1) | 5.4 (41.7) | -3.2 (26.2) | 12.9 (55.2) | ||
| Average Temperature °C ( °F) | -10.6 (12.9) | -7.4 (18.7) | -0.4 (31.3) | 8.1 (46.6) | 15.3 (59.5) | 20.6 (69.1) | 22.7 (72.9) | 21.2 (70.2) | 16.2 (61.2) | 9.7 (49.5) | 0.8 (33.4) | -7.8 (18) | 7.4 (45.3) | ||
| Average Min Temperature °C ( °F) | -15.7 (3.7) | -12.6 (9.3) | -5.3 (22.5) | 2.3 (36.1) | 9.1 (48.4) | 14.4 (57.9) | 16.7 (62.1) | 15.2 (59.4) | 10.1 (50.2) | 3.8 (38.8) | -3.9 (25) | -12.5 (9.5) | 1.8 (35.2) |
