Freeport (IL) Weather and Climate: A Comprehensive Guide
The temperature in Freeport can vary quite a bit throughout the year.
Temperatures can be warm during the warmest months,
and very cold during the cooler months.
It receives mid-range precipitation levels.
Let's now guide you through the climate details for a complete overview.
Average maximum day and minimum night temperature
Visitors to Freeport can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 28°C in July, the warmest time of the year, to a very cold -2°C during cooler months like January.
At night, temperatures typically drop to an average of around -12°C during these months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Generally, Freeport experiences moderate precipitation patterns, averaging 960 mm yearly. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, June receives high rainfall, averaging 131 mm of precipitation, recorded across 13 rainy days. In contrast, the drier season, January brings less snowfall, with 31 mm over 9 snowy days. For more details, please visit our Freeport Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Freeport. While June receives considerable daily sunshine with up to 10.2 hours, December marks the darkest time of the year, where sunshine is scarce with only 3.6 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
overcast and no rain overcast and slight rain overcast and rainForecast for Freeport (IL)
3 m/s
4 m/s
5 m/s
The best time of year to visit Freeport in the United States of America
During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
The coldest season / winter is in the following months: January, February and December.
July has an average maximum temperature of 28°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of -2°C.
June tops the wettest month list with 131 mm of rainfall.
January is the driest month with 31 mm of precipitation.
June is the sunniest month with an average of 307 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
