Galena
Illinois, USA
Long term weather forecast
Long term weather forecast

August weather forecast and Climate
Galena, IL

  • Average high temperature in August: 82°F

Warmest month (with highest average high temperature) is July (83°F).
Month with lowest average high temperature is January (28°F).

  • Average low temperature in August: 58°F

Month with highest average low temperature is July (60°F).
Coldest month (with lowest average low temperature) is January (10°F).

  • Average rainfall in August: 4.5"

Wettest month (with highest rainfall) is June (5").
Driest month (with lowest rainfall) is January (1.1").

  • Average rainfall days in August: 9 days

Month with highest number of rainy days is April (12 days).
Month with lowest number of rainy days is February (8 days).

  • Average daylight in August: 14h

Months with longest days are May, June and July (Average daylight: 15h).
Months with shortest days are January and December (Average daylight: 9h).

  • Average sunshine in August: 10h

Months with most sunshine are May, June, July and August (Average sunshine: 10h).
Months with least sunshine are November and December (Average sunshine: 4).

  • Average UV index in August: 8

Months with highest UV index are June and July (UV index 9).
Months with lowest UV index are January and December (UV index 1).

deutscheenglishespañolрусский中文