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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Gurnee, Illinois, with an average temperature ranging between min 18.3°F (-7.6°C) and max 27.9°F (-2.3°C). The coldest temperatures occur during January, when averages reach a peak of 27.9°F (-2.3°C) and a low of 18.3°F (-7.6°C). Weather in January »
Weather in February
February, the last month of the winter in Gurnee, is another freezing cold month, with an average temperature varying 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
The first month of the spring, March, is an icy month in Gurnee, Illinois, with an average temperature ranging between max 41.2°F (5.1°C) and min 30.6°F (-0.8°C). March brings a rise in the average high-temperature, transitioning from February's subzero cold 30.6°F (-0.8°C) to a wintry 41.2°F (5.1°C). Weather in March »
Weather in April
April in Gurnee, Illinois, is a fresh spring month, with an average temperature varying between 50.7°F (10.4°C) and 38.8°F (3.8°C). April's arrival brings a temperature shift, moving from a cold 41.2°F (5.1°C) in March to a fresh 50.7°F (10.4°C). Weather in April »
Weather in May
May, the last month of the spring in Gurnee, is a refreshing month, with an average temperature ranging between max 61.3°F (16.3°C) and min 48.6°F (9.2°C). With the onset of May, Gurnee sees a temperature rise, with the average high-temperature moving from April's fresh 50.7°F (10.4°C) to a refreshing 61.3°F (16.3°C). Weather in May »
Weather in June
June, the first month of the summer in Gurnee, is a pleasant month, with an average temperature varying between 70.5°F (21.4°C) and 58.6°F (14.8°C). Gurnee's transition into June sees a rise in the average high-temperature, advancing from a comfortable 61.3°F (16.3°C) in May to an agreeable 70.5°F (21.4°C). Weather in June »
Weather in July
July in Gurnee, Illinois, is a warm summer month, with temperature in the range of an average low of 65.3°F (18.5°C) and an average high of 77.5°F (25.3°C). Temperature records mark July as the warmest month, with highs averaging 77.5°F (25.3°C) and lows at 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 temperature in the range of an average low of 64.8°F (18.2°C) and an average high of 77°F (25°C). Gurnee transitions into August recording an average high-temperature of a still moderately hot 77°F (25°C), closely aligning with the preceding month's temperature. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Gurnee, Illinois, with an average temperature varying between 70.9°F (21.6°C) and 58.5°F (14.7°C). The average high-temperature shows a slight dip in September, from August's moderately hot 77°F (25°C) to a pleasant 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). Gurnee's progression into October involves a drop in the average high-temperature, receding from an agreeable 70.9°F (21.6°C) in September to a mild 58.3°F (14.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Gurnee, is also a frosty month, with an average temperature varying between 45.1°F (7.3°C) and 34.7°F (1.5°C). Gurnee's progression into November involves a drop in the average high-temperature, receding from a mild 58.3°F (14.6°C) in October to a frosty 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 temperature in the range of an average low of 25.3°F (-3.7°C) and an average high of 34°F (1.1°C). The commencement of December involves a temperature shift, with the average high-temperature dropping from a frosty 45.1°F (7.3°C) in November to a wintry 34°F (1.1°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Gurnee?
January, recording an average high temperature of 27.9°F (-2.3°C) and a low temperature of 18.3°F (-7.6°C), is Gurnee's coldest month.
What is the most humid month in Gurnee?
January is the most humid month in Gurnee, with an average relative humidity of 83%.
How many days does it rain in Gurnee?
Throughout the year, there are 142.5 rainfall days, and 21.5" (546mm) of precipitation is accumulated.
When does it snow in Gurnee?
January through April, October through December are months with snowfall in Gurnee, Illinois.
How many days does it snow in Gurnee?
Throughout the year, there are 45.5 snowfall days, and 9.37" (238mm) of snow is accumulated.
What is the month with the least sunshine in Gurnee?
January has the least sunshine of the year, with an average of 3.7h of sunshine.
When is the lowest UV index in Gurnee?
The months with the lowest UV index in Gurnee, Illinois, are January and December, with an average maximum UV index of 1.
What is the snowiest month in Gurnee?
The month with the most snowfall in Gurnee, Illinois, is February, when snow falls for 9.8 days and typically aggregates up to 2.6" (66mm) of snow.
When is Daylight Saving Time (DST) in Gurnee?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Gurnee, 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.
When it does not snow in Gurnee?
May through September are months without snowfall in Gurnee.
What is the wettest month in Gurnee?
The wettest months in Gurnee are June and August, with an average 2.68" (68mm) of rainfall.
When are the longest days in Gurnee?
June has the longest days of the year, with an average of 15h and 12min of daylight.
What time of the year is the hottest in Gurnee?
July, recording an average high temperature of 77.5°F (25.3°C) and a low temperature of 65.3°F (18.5°C), is Gurnee's warmest month.
What is the month with the most sunshine in Gurnee?
July and August, with an average of 10.5h of sunshine, are months with the most sunshine in Gurnee.
What is the month with the highest UV index in Gurnee?
The months with the highest UV index in Gurnee are July and August, with an average maximum UV index of 6.
What is the least humid month in Gurnee?
The months with the lowest humidity in Gurnee are October and November, with an average relative humidity of 75%.
What is the driest month in Gurnee?
The month with the least rainfall is December, when the rain falls for 8.1 days and typically collects 0.91" (23mm) of precipitation.
What is the month with the shortest days in Gurnee?
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 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 1min - 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).
Gurnee, Illinois, USA
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