Monthly weather forecast and Climate
Grono, Switzerland CH

Warmest month (with highest average high temperature) is July (81.1°F).
Month with lowest average high temperature is January (44.1°F).

Month with highest average low temperature is July (62.1°F).
Coldest month (with lowest average low temperature) is January (32.4°F).

Month with highest relative humidity is October (79%).
Month with lowest relative humidity is March (57%).

Wettest month (with highest rainfall) is May (6.8").
Driest month (with lowest rainfall) is February (1.8").

Month with highest number of rainy days is May (13.2 days).
Month with lowest number of rainy days is February (4.7 days).

Month with highest snowfall is January (9.7").
Months with lowest snowfall are May, June, July, August and September (0").

Month with highest number of snowfall days is January (2.3 days).
Months with lowest number of snowfall days are May, June, July, August and September (0 days).