Climate and monthly weather forecastKewanee, IL
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Kewanee, Illinois, with an average temperature fluctuating between 16.7°F (-8.5°C) and 28.8°F (-1.8°C). January is the coldest month, exhibiting average temperatures of 28.8°F (-1.8°C) at the peak and 16.7°F (-8.5°C) at the base. Weather in January »Weather in February
February, the last month of the winter in Kewanee, is a cold month, with an average temperature varying between 33.3°F (0.7°C) and 20.5°F (-6.4°C). February ushers in an average high-temperature of a cold 33.3°F (0.7°C), aligning closely with the preceding month. Weather in February »Weather in March
March, the first month of the spring in Kewanee, is a frosty month, with temperature in the range of an average high of 47.1°F (8.4°C) and an average low of 32.4°F (0.2°C). In Kewanee, stepping into March brings a temperature increase, moving up from February's icy 33.3°F (0.7°C) to a chilly 47.1°F (8.4°C). Weather in March »Weather in April
April is a mild spring month in Kewanee, Illinois, with an average temperature varying between 59.2°F (15.1°C) and 42.4°F (5.8°C). April's arrival brings a temperature shift, moving from a frosty 47.1°F (8.4°C) in March to a refreshing 59.2°F (15.1°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Kewanee, Illinois, with an average temperature varying between 53.6°F (12°C) and 70.7°F (21.5°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's moderate 59.2°F (15.1°C) to an agreeable 70.7°F (21.5°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Kewanee, Illinois, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 62.1°F (16.7°C). June signals a minor shift in the average high-temperature, moving from May's agreeable 70.7°F (21.5°C) to a warm 78.6°F (25.9°C). Weather in June »Weather in July
July, like June, in Kewanee, Illinois, is a moderately hot summer month, with an average temperature ranging between min 64.6°F (18.1°C) and max 81°F (27.2°C). With average high and low temperatures of 81°F (27.2°C) and 64.6°F (18.1°C) respectively, July is Kewanee's warmest month. The heat index in July is estimated at a tropical 87.8°F (31°C). Weather in July »Weather in August
August, the last month of the summer in Kewanee, is another warm month, with an average temperature varying between 62.6°F (17°C) and 80.1°F (26.7°C). Transitioning into August, Kewanee experiences an average high-temperature of a still warm 80.1°F (26.7°C), marking a minor shift from the preceding month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Kewanee, Illinois, with an average temperature ranging between max 74.8°F (23.8°C) and min 56.3°F (13.5°C). As September takes its course, Kewanee's average high-temperature registers at a still moderately hot 74.8°F (23.8°C), closely aligning with the preceding month. Weather in September »Weather in October
October, like September, in Kewanee, Illinois, is another comfortable autumn month, with an average temperature ranging between max 61.3°F (16.3°C) and min 45.5°F (7.5°C). With the onset of October, Kewanee experiences a modest temperature adjustment, with the average high-temperature receding from a moderately hot 74.8°F (23.8°C) in September to a refreshing 61.3°F (16.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Kewanee, Illinois, with an average temperature fluctuating between 47.1°F (8.4°C) and 33.4°F (0.8°C). Kewanee in November demonstrates a small temperature transition, adjusting from an average high of a refreshing 61.3°F (16.3°C) in October to a chilly 47.1°F (8.4°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Kewanee, Illinois, with an average temperature fluctuating between 24.1°F (-4.4°C) and 34.7°F (1.5°C). December's arrival comes with a decrease in the average high-temperature, moving from a chilly 47.1°F (8.4°C) in November to a cold 34.7°F (1.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Kewanee, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°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 (16.7°F).
Average pressure
Kewanee, 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:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"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 (29.91"Hg).
Average wind speed
Kewanee, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9.1mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Kewanee, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Kewanee, IL
- Average rainfall in January:
1.42" - Average rainfall in February:
1.57" - Average rainfall in March:
2.05" - Average rainfall in April:
3.5" - Average rainfall in May:
4.45" - Average rainfall in June:
3.31"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.01" - Average rainfall in September:
2.05" - Average rainfall in October:
2.72" - Average rainfall in November:
1.81" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days
Kewanee, IL
- Average rainfall days in January:
6.1 days - Average rainfall days in February:
5.6 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
12.3 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall
Kewanee, IL
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Kewanee, IL
- Average snowfall days in January:
11.4 days - Average snowfall days in February:
9.1 days - Average snowfall days in March:
4.5 days - Average snowfall days in April:
1.2 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:
0.5 days - Average snowfall days in November:
3 days - Average snowfall days in December:
7.3 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Kewanee, 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 54min - Average sunshine in February:
4h and 6min - Average sunshine in March:
6h and 36min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Kewanee, IL
- Average sunshine days in January:
15.2 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
18 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index
Kewanee, IL
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Kewanee, IL
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
Kewanee, 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).





