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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, the same as December, in Warrenville, Illinois, is another subzero cold winter month, with an average temperature ranging between min 17.1°F (-8.3°C) and max 28.4°F (-2°C). January is the coldest month, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 17.1°F (-8.3°C). Weather in January »
Weather in February
February, the last month of the winter in Warrenville, is a wintry month, with an average temperature ranging between min 19.9°F (-6.7°C) and max 32.4°F (0.2°C). The initiation of February records an average high-temperature of an icy 32.4°F (0.2°C), displaying a near consistency with the previous month. Weather in February »
Weather in March
March, the first month of the spring in Warrenville, is a frosty month, with an average temperature ranging between min 31.1°F (-0.5°C) and max 45.1°F (7.3°C). With the transition into March, Warrenville experiences an increase in average high-temperatures, moving up from a wintry 32.4°F (0.2°C) in February to a chilly 45.1°F (7.3°C). Weather in March »
Weather in April
April is a mild spring month in Warrenville, Illinois, with an average temperature ranging between max 56.8°F (13.8°C) and min 40.5°F (4.7°C). The beginning of April marks a shift in the average high-temperature, moving from March's chilly 45.1°F (7.3°C) to a refreshing 56.8°F (13.8°C). Weather in April »
Weather in May
May, the last month of the spring in Warrenville, is an agreeable month, with an average temperature ranging between min 51.8°F (11°C) and max 69.1°F (20.6°C). With the onset of May, Warrenville sees a temperature rise, with the average high-temperature moving from April's mild 56.8°F (13.8°C) to an agreeable 69.1°F (20.6°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Warrenville, Illinois, with an average temperature fluctuating between 78.4°F (25.8°C) and 61.3°F (16.3°C). As June begins, there is an increase in the average high-temperature, moving from a pleasant 69.1°F (20.6°C) in May to a warm 78.4°F (25.8°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Warrenville, Illinois, with an average temperature varying between 81.7°F (27.6°C) and 65.1°F (18.4°C). July is the month when Warrenville's temperatures reach their peak, with averages of 81.7°F (27.6°C) and lows of 65.1°F (18.4°C). July's heat index is computed to be a hot 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Warrenville, Illinois, with an average temperature fluctuating between 63.5°F (17.5°C) and 80.1°F (26.7°C). August ushers in an average high-temperature of a still warm 80.1°F (26.7°C), aligning closely with the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Warrenville, is still a warm month, with an average temperature varying between 73.8°F (23.2°C) and 57°F (13.9°C). In Warrenville, entering September brings a subtle temperature decrement, reducing from August's 80.1°F (26.7°C) to a still warm 73.8°F (23.2°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Warrenville, Illinois, with temperature in the range of an average high of 60.6°F (15.9°C) and an average low of 45.5°F (7.5°C). The onset of October brings a small change in high-temperatures, falling from a moderately hot 73.8°F (23.2°C) in September to a moderate 60.6°F (15.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Warrenville, is another chilly month, with temperature in the range of an average high of 45.9°F (7.7°C) and an average low of 33.1°F (0.6°C). As Warrenville transitions into November, a noticeable drop in the average high-temperature is observed, falling from a mild 60.6°F (15.9°C) in October to a frosty 45.9°F (7.7°C). Weather in November »
Weather in December
December, the first month of the winter in Warrenville, is still a cold month, with temperature in the range of an average low of 24.4°F (-4.2°C) and an average high of 34.3°F (1.3°C). The onset of December results in a decrease in the average high-temperature, receding from a frosty 45.9°F (7.7°C) in November to an icy 34.3°F (1.3°C). Weather in December »
Updated: Aug 7, 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
What part of the year is the coldest?
January is the coldest month, exhibiting average temperatures of 28.4°F (-2°C) at the peak and 17.1°F (-8.3°C) at the base.
What is the most humid month?
January and February, with an average relative humidity of 83%, are most humid months.
How much does it rain?
Throughout the year, there are 132.2 rainfall days, and 16.22" (412mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, October through December.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 11.1 days and accumulates 1.85" (47mm) of snow.
How many days does it snow?
In Warrenville, during the entire year, snow falls for 38.7 days and aggregates up to 6.93" (176mm) of snow.
What is the month with the least sunshine?
With an average of 3.8h of sunshine, January has the least sunshine of the year.
What are the months with the lowest UV index?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Warrenville.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Warrenville, 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.
What is the wettest month?
The month with the most rainfall is May, when the rain falls for 14.8 days and typically aggregates up to 2.09" (53mm) of precipitation.
When it does not snow?
In Warrenville, snow does not fall in May through September.
When are the longest days in Warrenville?
With an average of 15h and 12min of daylight, June has the longest days of the year.
What are the months with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest?
July, recording an average high temperature of 81.7°F (27.6°C) and a low temperature of 65.1°F (18.4°C), is Warrenville's warmest month.
What are the months with the most sunshine?
July and August, with an average of 10h of sunshine, are months with the most sunshine.
What is the least humid month?
October is the least humid month, with an average relative humidity of 73%.
What is the driest month?
December is the month with the least rainfall. Rain falls for 6.4 days and accumulates 0.71" (18mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Warrenville, IL
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.4°F).
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure
Warrenville, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Warrenville, IL
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.3mph - Average wind speed in April:
9.6mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6mph - Average wind speed in September:
7mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Warrenville, IL
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Warrenville, IL
- Average rainfall in January:
0.83" - Average rainfall in February:
0.79" - Average rainfall in March:
0.87" - Average rainfall in April:
1.69" - Average rainfall in May:
2.09" - Average rainfall in June:
1.85"
- Average rainfall in July:
2.05" - Average rainfall in August:
1.81" - Average rainfall in September:
1.38" - Average rainfall in October:
1.42" - Average rainfall in November:
0.75" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days
Warrenville, IL
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
4.4 days - Average rainfall days in March:
9.8 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
11 days - Average rainfall days in November:
7.3 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall
Warrenville, IL
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Warrenville, IL
- Average snowfall days in January:
11.1 days - Average snowfall days in February:
9.1 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
2 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:
0.4 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
8.1 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Warrenville, IL
- Average daylight in January:
9h and 4min - 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 1min - 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 12min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Warrenville, IL
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
15.7 days - Average sunshine days in March:
16 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
10.2 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
17.7 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
19.1 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.2 days).
Average UV index
Warrenville, IL
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Warrenville, IL
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
Warrenville, 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).
Warrenville, Illinois, USA
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