Warmest months (with the highest average high temperature) are July and August (22°C).
The month with the lowest average high temperature is January (1°C).
The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Months with the highest number of rainy days are March, April and December (15 days).
Months with the lowest number of rainy days are July, August and September (6 days).