Warmest months (with highest average high temperature) are July and August (12°C).
Month with lowest average high temperature is February (-5°C).
Months with highest average low temperature are July and August (8°C).
Coldest month (with lowest average low temperature) is January (-13°C).
Month with highest number of rainy days is April (16 days).
Month with lowest number of rainy days is September (9 days).