Climate and monthly weather forecastWilsman, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Wilsman, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 17.8°F (-7.9°C) and an average high of 29.5°F (-1.4°C). The month of January, characterized by an average high of 29.5°F (-1.4°C) and a low of 17.8°F (-7.9°C), is recognized as the coldest. Weather in January »Weather in February
February, the last month of the winter in Wilsman, is an icy month, with temperature in the range of an average low of 20.8°F (-6.2°C) and an average high of 33.4°F (0.8°C). As Wilsman steps into February, the average high-temperature is measured at a cold 33.4°F (0.8°C), displaying minor differences from January's 29.5°F (-1.4°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Wilsman, Illinois, with an average temperature ranging between min 32.7°F (0.4°C) and max 47.5°F (8.6°C). The arrival of March brings a change in Wilsman's weather, with average high-temperatures moving from February's icy 33.4°F (0.8°C) to a frosty 47.5°F (8.6°C). Weather in March »Weather in April
April is a mild spring month in Wilsman, Illinois, with an average temperature varying between 59.4°F (15.2°C) and 42.8°F (6°C). Entering April, Wilsman sees a temperature rise, with the average high-temperature advancing from March's chilly 47.5°F (8.6°C) to a refreshing 59.4°F (15.2°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Wilsman, Illinois, with an average temperature varying between 54°F (12.2°C) and 71.1°F (21.7°C). Wilsman in May experiences an increase in the average high-temperature, moving from April's refreshing 59.4°F (15.2°C) to an agreeable 71.1°F (21.7°C). Weather in May »Weather in June
June, the first month of the summer in Wilsman, is a warm month, with temperature in the range of an average high of 78.8°F (26°C) and an average low of 61.9°F (16.6°C). With the onset of June, Wilsman's weather sees a minor temperature rise, transitioning from a pleasant 71.1°F (21.7°C) in May to a moderately hot 78.8°F (26°C). Weather in June »Weather in July
July, like June, in Wilsman, Illinois, is another warm summer month, with an average temperature ranging between min 64.4°F (18°C) and max 81°F (27.2°C). July, marked by an average high-temperature of 81°F (27.2°C) and a low-temperature of 64.4°F (18°C), is the warmest month. Throughout July, the heat index is evaluated at 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 Wilsman, Illinois, with an average temperature ranging between min 62.2°F (16.8°C) and max 79.7°F (26.5°C). Wilsman experiences an average high-temperature of a still warm 79.7°F (26.5°C) in August, subtly different from July's 81°F (27.2°C). Weather in August »Weather in September
September, the first month of the autumn in Wilsman, is still a warm month, with an average temperature fluctuating between 75°F (23.9°C) and 56.5°F (13.6°C). September's beginning signals an average high-temperature of a still warm 75°F (23.9°C), barely different from August's 79.7°F (26.5°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Wilsman, Illinois, with an average temperature fluctuating between 46°F (7.8°C) and 61.7°F (16.5°C). A shift in Wilsman's weather is observed as September turns into October, with the average high temperature reducing from a moderately hot 75°F (23.9°C) to an enjoyable 61.7°F (16.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Wilsman, Illinois, with temperature in the range of an average low of 34°F (1.1°C) and an average high of 47.3°F (8.5°C). November's arrival is marked by a significant decrease in the average high-temperature, moving from a refreshing 61.7°F (16.5°C) in October to a frosty 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 Wilsman, Illinois, with an average temperature fluctuating between 25.5°F (-3.6°C) and 35.6°F (2°C). In Wilsman, the beginning of December is marked by a lowered average high-temperature, shifting from November's chilly 47.3°F (8.5°C) to a wintry 35.6°F (2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Wilsman, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
Wilsman, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"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:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Wilsman, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Wilsman, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Wilsman, IL
- Average rainfall in January:
1.38" - Average rainfall in February:
1.3" - Average rainfall in March:
1.65" - Average rainfall in April:
3.11" - Average rainfall in May:
3.39" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.28" - Average rainfall in September:
1.85" - Average rainfall in October:
2.36" - Average rainfall in November:
1.3" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days
Wilsman, IL
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.1 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12 days - Average rainfall days in November:
8 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall
Wilsman, IL
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Wilsman, IL
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
5.1 days - Average snowfall days in April:
1.6 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:
7.8 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Wilsman, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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 48min - Average sunshine in February:
4h and 6min - Average sunshine in March:
6h and 24min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 54min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Wilsman, IL
- Average sunshine days in January:
14.7 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
9.2 days - Average sunshine days in August:
11.1 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
17 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index
Wilsman, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Wilsman, IL
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility
Wilsman, IL
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





