Climate and monthly weather forecastBradley, IL
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Bradley, Illinois, with an average temperature varying between 30°F (-1.1°C) and 18.3°F (-7.6°C). January tends to be the coldest month, with temperatures averaging a daily high of 30°F (-1.1°C) and a low of 18.3°F (-7.6°C). Weather in January »Weather in February
The last month of the winter, February, is a cold month in Bradley, Illinois, with an average temperature fluctuating between 21.4°F (-5.9°C) and 34.2°F (1.2°C). February records an average high-temperature of a wintry 34.2°F (1.2°C), indicating a minor variation from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Bradley, is a frosty month, with temperature in the range of an average low of 33.3°F (0.7°C) and an average high of 47.5°F (8.6°C). With the transition into March, Bradley experiences an increase in average high-temperatures, moving up from a cold 34.2°F (1.2°C) in February to a frosty 47.5°F (8.6°C). Weather in March »Weather in April
April is a refreshing spring month in Bradley, Illinois, with temperature in the range of an average high of 59°F (15°C) and an average low of 43.2°F (6.2°C). The start of April brings a rise in the average high-temperature, moving from a chilly 47.5°F (8.6°C) in March to a moderate 59°F (15°C). Weather in April »Weather in May
May, the last month of the spring in Bradley, is an agreeable month, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 71.1°F (21.7°C). As Bradley transitions into May, the average high-temperature is observed to rise from a moderate 59°F (15°C) in April to a pleasant 71.1°F (21.7°C). Weather in May »Weather in June
June, the first month of the summer in Bradley, is a warm month, with an average temperature ranging between max 79.3°F (26.3°C) and min 62.1°F (16.7°C). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from a pleasant 71.1°F (21.7°C) in May to a warm 79.3°F (26.3°C). Weather in June »Weather in July
July, like June, in Bradley, Illinois, is another warm summer month, with an average temperature fluctuating between 64.2°F (17.9°C) and 81.1°F (27.3°C). July, recording an average high temperature of 81.1°F (27.3°C) and a low temperature of 64.2°F (17.9°C), is Bradley's warmest month. July's heat index is estimated at 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 Bradley, Illinois, with an average temperature fluctuating between 80.1°F (26.7°C) and 62.6°F (17°C). August's arrival brings an average high-temperature of a still warm 80.1°F (26.7°C), demonstrating subtle variation from the preceding month. Weather in August »Weather in September
September, the first month of the autumn in Bradley, is still a warm month, with an average temperature varying between 75°F (23.9°C) and 57°F (13.9°C). With the onset of September, the average high-temperature stands at a still moderately hot 75°F (23.9°C), closely aligned with August's 80.1°F (26.7°C). Weather in September »Weather in October
October, like September, in Bradley, Illinois, is another refreshing autumn month, with temperature in the range of an average low of 46.8°F (8.2°C) and an average high of 61.9°F (16.6°C). Onset of October witnesses a reduction in the average high-temperature, falling from a moderately hot 75°F (23.9°C) in September to a refreshing 61.9°F (16.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Bradley, Illinois, with an average temperature fluctuating between 47.3°F (8.5°C) and 34.7°F (1.5°C). The shift from October to November sees a distinct decrease in the average high-temperature, dropping from a refreshing 61.9°F (16.6°C) to a frosty 47.3°F (8.5°C). Weather in November »Weather in December
December, the first month of the winter in Bradley, is also a wintry month, with an average temperature varying between 36.1°F (2.3°C) and 25.9°F (-3.4°C). The onset of December coincides with a reduction in the average high-temperature, falling from a frosty 47.3°F (8.5°C) in November to a cold 36.1°F (2.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Bradley, 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 (30°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure
Bradley, 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:
30.11"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
Bradley, IL
- Average wind speed in January:
10.1mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
10mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Bradley, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Bradley, IL
- Average rainfall in January:
0.35" - Average rainfall in February:
0.31" - Average rainfall in March:
0.35" - Average rainfall in April:
0.59" - Average rainfall in May:
1.06" - Average rainfall in June:
0.75"
- Average rainfall in July:
0.67" - Average rainfall in August:
0.47" - Average rainfall in September:
0.43" - Average rainfall in October:
0.59" - Average rainfall in November:
0.28" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is November (0.28").
Average rainfall days
Bradley, IL
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
2.5 days - Average rainfall days in March:
6.8 days - Average rainfall days in April:
8.7 days - Average rainfall days in May:
11.4 days - Average rainfall days in June:
10.2 days
- Average rainfall days in July:
8.9 days - Average rainfall days in August:
8.8 days - Average rainfall days in September:
6.4 days - Average rainfall days in October:
7.1 days - Average rainfall days in November:
3.6 days - Average rainfall days in December:
3.8 days
The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is January (2.3 days).
Average snowfall
Bradley, IL
The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Bradley, IL
- Average snowfall days in January:
5.8 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
2.9 days - Average snowfall days in April:
0.7 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:
0.1 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Bradley, 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 0min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 36min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Bradley, IL
- Average sunshine days in January:
24.8 days - Average sunshine days in February:
22.3 days - Average sunshine days in March:
22.3 days - Average sunshine days in April:
19 days - Average sunshine days in May:
16.8 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
16.9 days - Average sunshine days in August:
18.9 days - Average sunshine days in September:
21.6 days - Average sunshine days in October:
21.9 days - Average sunshine days in November:
24 days - Average sunshine days in December:
24.4 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is June (15.7 days).
Average UV index
Bradley, 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
Bradley, 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
Bradley, 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).





