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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 another subzero cold winter month in Wilmington, Illinois, with an average temperature ranging between max 29.7°F (-1.3°C) and min 17.8°F (-7.9°C). Wilmington's coldest month, January, registers temperatures that range from a high of 29.7°F (-1.3°C) to a low of 17.8°F (-7.9°C). Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Wilmington, Illinois, with an average temperature fluctuating between 33.6°F (0.9°C) and 20.8°F (-6.2°C). February observes an average high-temperature of a cold 33.6°F (0.9°C), marking an insignificant difference from January's 29.7°F (-1.3°C). Weather in February »
Weather in March
March, the first month of the spring in Wilmington, is a chilly month, with an average temperature varying between 47.1°F (8.4°C) and 32.5°F (0.3°C). The arrival of March signals an increase in the average high-temperature, moving from a wintry 33.6°F (0.9°C) in February to a chilly 47.1°F (8.4°C). Weather in March »
Weather in April
April in Wilmington, Illinois, is a refreshing spring month, with an average temperature ranging between max 58.8°F (14.9°C) and min 42.4°F (5.8°C). Wilmington experiences a temperature shift with the start of April, with average high-temperatures moving from a frosty 47.1°F (8.4°C) in March to a mild 58.8°F (14.9°C). Weather in April »
Weather in May
May, the last month of the spring in Wilmington, is an agreeable month, with an average temperature varying between 54°F (12.2°C) and 70.7°F (21.5°C). The onset of May brings a rise in the average high-temperature, elevating from a mild 58.8°F (14.9°C) in April to an agreeable 70.7°F (21.5°C). Weather in May »
Weather in June
June, the first month of the summer in Wilmington, is a warm month, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 79.2°F (26.2°C). As May transitions into June, Wilmington notices a gentle rise in the average high-temperature, transitioning from an agreeable 70.7°F (21.5°C) to a warm 79.2°F (26.2°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Wilmington, Illinois, with an average temperature fluctuating between 64.6°F (18.1°C) and 81.1°F (27.3°C). July, having an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 64.6°F (18.1°C), is the warmest month. In July, the heat index is calculated to be a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Wilmington, Illinois, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 79.7°F (26.5°C). Wilmington's average high-temperature in August is a still warm 79.7°F (26.5°C), marking an insignificant difference from the 81.1°F (27.3°C) of July. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Wilmington, Illinois, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 56.8°F (13.8°C). With the advent of September, Wilmington experiences an average high-temperature of a still moderately hot 74.8°F (23.8°C), mirroring a close resemblance to the previous month. Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Wilmington, Illinois, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 61.9°F (16.6°C). Wilmington's progression into October involves a drop in the average high-temperature, receding from a warm 74.8°F (23.8°C) in September to a comfortable 61.9°F (16.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Wilmington, Illinois, with an average temperature varying between 47.3°F (8.5°C) and 34.2°F (1.2°C). Wilmington in November showcases a distinct temperature shift, moving from an average high of a comfortable 61.9°F (16.6°C) in October to a chilly 47.3°F (8.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Wilmington, Illinois, with an average temperature fluctuating between 35.6°F (2°C) and 25.5°F (-3.6°C). The arrival of December corresponds with a temperature reduction, down from November's chilly 47.3°F (8.5°C) to a cold 35.6°F (2°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Wilmington?
Wilmington's January weather, with an average high temperature of 29.7°F (-1.3°C) and an average low temperature of 17.8°F (-7.9°C), tends to be the coldest of the year.
How much does it rain in Wilmington?
In Wilmington, during the entire year, the rain falls for 160.4 days and collects up to 33.5" (851mm) of precipitation.
When does it snow in Wilmington?
January through April, October through December are months with snowfall.
How many days does it snow in Wilmington?
Throughout the year, there are 38.7 snowfall days, and 15.39" (391mm) of snow is accumulated.
What is the month with the least sunshine in Wilmington?
The month with the least sunshine in Wilmington is January, with an average of 3.9h of sunshine.
What is the driest month in Wilmington?
The months with the least rainfall are February and November Rain falls for 6 days and accumulates 1.69" (43mm) of rain.
When does it snow the most in Wilmington?
The month with the most snowfall in Wilmington, Illinois, is February, when snow falls for 9.7 days and typically aggregates up to 4.29" (109mm) of snow.
When is Daylight Saving Time (DST) in Wilmington?
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.
What is the wettest month in Wilmington?
The month with the most rainfall in Wilmington is May, when the rain falls for 19.2 days and typically aggregates up to 4.57" (116mm) of precipitation.
When it does not snow in Wilmington?
In Wilmington, snow does not fall in May through September.
When are the longest days in Wilmington?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What are the months with the most sunshine in Wilmington?
The months with the most sunshine are June through August, with an average of 9.8h of sunshine.
When is the highest UV index in Wilmington?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What is the warmest month in Wilmington?
In Wilmington, the peak temperatures are generally noted in July, averaging a high of 81.1°F (27.3°C) and a low of 64.6°F (18.1°C).
What is the most humid month in Wilmington?
July is the most humid month in Wilmington, with an average relative humidity of 84%.
What is the least humid month in Wilmington?
October is the least humid month, with an average relative humidity of 72%.
What is the month with the shortest days in Wilmington?
The month with the shortest days in Wilmington is December, with an average of 9h and 18min of daylight.
When is the lowest UV index in Wilmington?
The month with the lowest UV index in Wilmington, Illinois, is December, with an average maximum UV index of 1.
Average temperature
Wilmington, IL
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.7°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
Wilmington, IL
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.08"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:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Wilmington, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6mph - Average wind speed in September:
7mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Wilmington, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Wilmington, IL
- Average rainfall in January:
1.73" - Average rainfall in February:
1.69" - Average rainfall in March:
2.2" - Average rainfall in April:
3.74" - Average rainfall in May:
4.57" - Average rainfall in June:
3.98"
- Average rainfall in July:
3.58" - Average rainfall in August:
2.95" - Average rainfall in September:
2.52" - Average rainfall in October:
3.03" - Average rainfall in November:
1.69" - Average rainfall in December:
1.81"
The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are February and November (1.69").
Average rainfall days
Wilmington, IL
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
6 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
17.3 days - Average rainfall days in May:
19.2 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
19 days - Average rainfall days in August:
17 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
8.7 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (5.8 days).
Average snowfall
Wilmington, IL
The month with the highest snowfall is February (4.29").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Wilmington, IL
- Average snowfall days in January:
10.6 days - Average snowfall days in February:
9.7 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.8 days - Average snowfall days in May:
0 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:
0.3 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Wilmington, 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 3min - 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 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Wilmington, IL
- Average sunshine days in January:
15.4 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
9.4 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
8.6 days - Average sunshine days in August:
9.4 days - Average sunshine days in September:
14 days - Average sunshine days in October:
15.7 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
16 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (8.6 days).
Average UV index
Wilmington, IL
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Wilmington, 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 33).
Average visibility
Wilmington, IL
The months with the highest visibility are January, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are February, July and August (5mi).
Wilmington, Illinois, USA
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