Climate and monthly weather forecastGurnee, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Gurnee, Illinois, is another subzero cold winter month, with an average temperature ranging between min 18.3°F (-7.6°C) and max 27.9°F (-2.3°C). January is Gurnee's coldest month, registering average high temperatures of 27.9°F (-2.3°C) and lows of 18.3°F (-7.6°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Gurnee, Illinois, with an average temperature fluctuating between 30.6°F (-0.8°C) and 20.7°F (-6.3°C). Gurnee's entry into February measures an average high-temperature of a still freezing cold 30.6°F (-0.8°C), closely parallel to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Gurnee, is a cold month, with an average temperature fluctuating between 30.6°F (-0.8°C) and 41.2°F (5.1°C). Gurnee sees an increase in the average high-temperature with the arrival of March, moving from February's freezing cold 30.6°F (-0.8°C) to a cold 41.2°F (5.1°C). Weather in March »Weather in April
April in Gurnee, Illinois, is a cool spring month, with an average temperature ranging between min 38.8°F (3.8°C) and max 50.7°F (10.4°C). The shift from March to April sees an increase in the average high-temperature, transitioning from an icy 41.2°F (5.1°C) to a cool 50.7°F (10.4°C). Weather in April »Weather in May
May, the last month of the spring in Gurnee, is a comfortable month, with an average temperature fluctuating between 48.6°F (9.2°C) and 61.3°F (16.3°C). The arrival of May brings a temperature shift, with the average high-temperature escalating from a cool 50.7°F (10.4°C) in April to a refreshing 61.3°F (16.3°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Gurnee, Illinois, with an average temperature varying between 70.5°F (21.4°C) and 58.6°F (14.8°C). The beginning of June marks a shift in the average high-temperature, moving from May's enjoyable 61.3°F (16.3°C) to a pleasant 70.5°F (21.4°C). Weather in June »Weather in July
July in Gurnee, Illinois, is a moderately hot summer month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 65.3°F (18.5°C). Gurnee, Illinois, experiences its highest average temperatures in July, reaching a peak of 77.5°F (25.3°C) and a minimum of 65.3°F (18.5°C). Weather in July »Weather in August
August, the last month of the summer in Gurnee, is also a moderately hot month, with an average temperature fluctuating between 77°F (25°C) and 64.8°F (18.2°C). The transition into August is marked with an average high-temperature of a still moderately hot 77°F (25°C), showing an insignificant shift from July's 77.5°F (25.3°C). Weather in August »Weather in September
September, the first month of the autumn in Gurnee, is also an agreeable month, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 70.9°F (21.6°C). Gurnee observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 77°F (25°C) to an agreeable 70.9°F (21.6°C). Weather in September »Weather in October
October, the same as September, in Gurnee, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 58.3°F (14.6°C) and 46.9°F (8.3°C). As October commences, the average high-temperature shows a reduction, transitioning from a pleasant 70.9°F (21.6°C) in September to a mild 58.3°F (14.6°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Gurnee, Illinois, with an average temperature varying between 34.7°F (1.5°C) and 45.1°F (7.3°C). In Gurnee, the average high-temperature in November decreases from a moderate 58.3°F (14.6°C) in October to a chilly 45.1°F (7.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Gurnee, Illinois, with an average temperature varying between 34°F (1.1°C) and 25.3°F (-3.7°C). In the transition to December, Gurnee observes a drop in the average high-temperature, moving from a chilly 45.1°F (7.3°C) in November to a cold 34°F (1.1°C). Weather in December »Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Gurnee witnesses the coldest weather in January, with temperatures averaging a high of 27.9°F (-2.3°C) and a low of 18.3°F (-7.6°C).
The most humid month is January, with an average relative humidity of 83%.
Throughout the year, there are 142.5 rainfall days, and 21.5" (546mm) of precipitation is accumulated.
Months with snowfall are January through April, October through December.
Throughout the year, there are 45.5 snowfall days, and 9.37" (238mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 3.7h of sunshine.
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
February is the month with the most snowfall in Gurnee. Snow falls for 9.8 days and accumulates 2.6" (66mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
May through September are months without snowfall.
The months with the most rainfall are June and August, with an average 2.68" (68mm) of precipitation.
With an average of 15h and 12min of daylight, June has the longest days of the year.
In Gurnee, the average highest temperatures are observed in July, with a high of 77.5°F (25.3°C) and a low of 65.3°F (18.5°C).
The months with the most sunshine are July and August, with an average of 10.5h of sunshine.
The months with the highest UV index are July and August, with an average maximum UV index of 6.
The months with the lowest humidity are October and November, with an average relative humidity of 75%.
December is the month with the least rainfall. Rain falls for 8.1 days and accumulates 0.91" (23mm) of precipitation.
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Gurnee, IL
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure
Gurnee, IL
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Gurnee, IL
- Average wind speed in January:
11.9mph - Average wind speed in February:
11.6mph - Average wind speed in March:
10.7mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.4mph - Average wind speed in August:
7.3mph - Average wind speed in September:
8.8mph - Average wind speed in October:
10.5mph - Average wind speed in November:
11.3mph - Average wind speed in December:
11.1mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity
Gurnee, IL
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall
Gurnee, IL
- Average rainfall in January:
1.06" - Average rainfall in February:
1.06" - Average rainfall in March:
1.1" - Average rainfall in April:
2.44" - Average rainfall in May:
2.48" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.44" - Average rainfall in August:
2.68" - Average rainfall in September:
1.73" - Average rainfall in October:
1.89" - Average rainfall in November:
1.02" - Average rainfall in December:
0.91"
The wettest months (with the highest rainfall) are June and August (2.68").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days
Gurnee, IL
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
5.2 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
17 days - Average rainfall days in August:
15.7 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is February (5.2 days).
Average snowfall
Gurnee, IL
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Gurnee, IL
- Average snowfall days in January:
12.4 days - Average snowfall days in February:
9.8 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
2.4 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.7 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
9.7 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Gurnee, IL
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Gurnee, IL
- Average sunshine days in January:
12.4 days - Average sunshine days in February:
12.4 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
13.9 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
16.5 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index
Gurnee, IL
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Gurnee, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Gurnee, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
