Yosemite National Park is definitely worth a visit
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Gurnee (IL) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Gurnee.
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Climate overview of Gurnee
The climate in Gurnee, Illinois, United States of America, is marked by large temperature swings across the seasons, ranging from 27°C (81°F) in July to -1°C (30°F) in January.
Annual rain/snowfall is moderate at around 977 mm (38 in), with June being the wettest month. The city also has warm summers and very cold winters. The most sunshine falls in July, with an average of 10.6 hours of daily sunshine.
Gurnee Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Gurnee - and find the best time to visit.
Monthly Temperature in Gurnee
In Gurnee, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 27°C (81°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -1°C (30°F).
At night, temperatures range from around 17°C (63°F) in July to -9°C (16°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Gurnee
On average, Gurnee receives a reasonable amount of rain/snowfall, with an annual precipitation of 977 mm (38 in). Gurnee can be quite wet during June, receiving approximately 107 mm (4.2 in) of precipitation over 13 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 41 mm (1.6 in) of precipitation spread across 10 snowy days. For more details, please visit our Gurnee Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Gurnee
Gurnee can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Chicago, the United States of America (43 KM, 26 Miles).
Daily hours of sunshine
Data from: Chicago, the United States of America (43 KM, 26 Miles).
Daily percentage of sunshine
Data from: Chicago, the United States of America (43 KM, 26 Miles).
Humidity in Gurnee by Month
The relative humidity is high throughout the year in Gurnee.
The city experiences its highest humidity in December, reaching 76%. In May, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Chicago, the United States of America (43 KM, 26 Miles).
Best Time to Visit Gurnee
The most comfortable overall weather for exploring Gurnee is usually found in July, August and September. Conditions are generally least comfortable in January, February, March, April, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very cold
Feb
very cold
Mar
cold
Apr
wet
May
very good
Jun
very good
Jul
excellent
Aug
excellent
Sep
excellent
Oct
good
Nov
cold
Dec
cold
- Best overall: July, August and September
- Warmest weather: July and August
- Most sunshine: June and July
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -9°C (16°F).
Frequently asked questions about the climate in Gurnee
What is the best time to visit Gurnee?
July, August and September typically offer the most optimal weather in Gurnee. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Gurnee has warm summers and very cold winters.
What temperatures can I expect in Gurnee?
Daytime highs range from -1°C (30°F) in January to 27°C (81°F) in July. Nighttime lows range from -9°C (16°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Gurnee get?
Annual rainfall is around 977 mm (38 in). June is the wettest month with 107 mm (4.2 in), while January is the driest with 41 mm (1.6 in).
How sunny is Gurnee?
Gurnee receives around 2,509 hours of sunshine per year. July is the sunniest month with 319 hours, while December is the cloudiest with just 107 hours. Overall, Gurnee enjoys abundant sunshine.
Gurnee 3-Day Forecast
Gurnee on the map
Gurnee is highlighted - select any city to see its climate.
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