Climate and monthly weather forecastWinfield, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Winfield, Illinois, with an average temperature varying between 28°F (-2.2°C) and 16.7°F (-8.5°C). January is the coldest month, with the temperature often reaching an average high of 28°F (-2.2°C) and an average low of 16.7°F (-8.5°C). Weather in January »Weather in February
The last month of the winter, February, is a cold month in Winfield, Illinois, with an average temperature fluctuating between 32.2°F (0.1°C) and 19.8°F (-6.8°C). In the transition from January to February, Winfield reports an average high-temperature of an icy 32.2°F (0.1°C), indicating a close resemblance to the prior month. Weather in February »Weather in March
March, the first month of the spring in Winfield, is a frosty month, with an average temperature ranging between max 45°F (7.2°C) and min 30.7°F (-0.7°C). March's arrival is marked by an increase in the average high-temperature, moving from an icy 32.2°F (0.1°C) in February to a frosty 45°F (7.2°C). Weather in March »Weather in April
April is a moderate spring month in Winfield, Illinois, with an average temperature varying between 40.3°F (4.6°C) and 56.3°F (13.5°C). The rise of average high-temperatures is seen in April, with an increase from a chilly 45°F (7.2°C) in March to a moderate 56.3°F (13.5°C). Weather in April »Weather in May
May, the last month of the spring in Winfield, is an agreeable month, with an average temperature fluctuating between 68.5°F (20.3°C) and 51.8°F (11°C). May's arrival brings a temperature shift, moving from a refreshing 56.3°F (13.5°C) in April to a pleasant 68.5°F (20.3°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Winfield, Illinois, with an average temperature ranging between max 78.1°F (25.6°C) and min 60.8°F (16°C). June shows a rise in the average high-temperature, moving from May's agreeable 68.5°F (20.3°C) to a warm 78.1°F (25.6°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Winfield, Illinois, with an average temperature ranging between max 81.7°F (27.6°C) and min 65.3°F (18.5°C). The average temperatures reach their apex in July, averaging 81.7°F (27.6°C) at the high end and 65.3°F (18.5°C) at the low end. In July, the average heat index is appraised at a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Winfield, Illinois, with an average temperature fluctuating between 64°F (17.8°C) and 80.4°F (26.9°C). Winfield's shift into August sets the average high-temperature at a still warm 80.4°F (26.9°C), a figure that deviates only slightly from July's 81.7°F (27.6°C). Weather in August »Weather in September
September, the first month of the autumn in Winfield, is also a moderately hot month, with an average temperature ranging between min 57.4°F (14.1°C) and max 73.6°F (23.1°C). In September, the average high-temperature marginally decreases from 80.4°F (26.9°C) in August to a still warm 73.6°F (23.1°C). Weather in September »Weather in October
October, the same as September, in Winfield, Illinois, is a moderate autumn month, with an average temperature varying between 45.5°F (7.5°C) and 60.4°F (15.8°C). A moderate decline in the average high-temperature is seen during October, decreasing from a moderately hot 73.6°F (23.1°C) in September to a refreshing 60.4°F (15.8°C). Weather in October »Weather in November
November, the last month of the autumn in Winfield, is also a frosty month, with an average temperature varying between 45.5°F (7.5°C) and 33.3°F (0.7°C). With the onset of November, Winfield experiences a distinct temperature drop, with the average high-temperature reducing from October's mild 60.4°F (15.8°C) to a chilly 45.5°F (7.5°C). Weather in November »Weather in December
December, the first month of the winter in Winfield, is also an icy month, with an average temperature fluctuating between 24.3°F (-4.3°C) and 34.3°F (1.3°C). In the transition to December, Winfield observes a drop in the average high-temperature, moving from a chilly 45.5°F (7.5°C) in November to an icy 34.3°F (1.3°C). Weather in December »Updated: Feb 12, 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
The lowest temperatures in Winfield, Illinois, are recorded in January, with averages reaching a high of 28°F (-2.2°C) and a low of 16.7°F (-8.5°C).
The months with the highest humidity are January and February, with an average relative humidity of 83%.
In Winfield, during the entire year, the rain falls for 164.3 days and collects up to 33.78" (858mm) of precipitation.
Months with snowfall in Winfield, Illinois, are January through May, October through December.
The month with the most snowfall in Winfield is January, when snow falls for 13.1 days and typically aggregates up to 5.87" (149mm) of snow.
In Winfield, Illinois, during the entire year, snow falls for 47 days and aggregates up to 20.2" (513mm) of snow.
The month with the least sunshine is January, with an average of 3.7h of sunshine.
The month with the lowest UV index in Winfield, Illinois, is January, with an average maximum UV index of 1.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Winfield, Illinois, 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.
May is the month with the most rainfall in Winfield, Illinois. Rain falls for 19.2 days and accumulates 4.45" (113mm) of precipitation.
June through September are months without snowfall in Winfield.
The month with the longest days is June, with an average of 15h and 12min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
Winfield's warmest month, July, generally records average temperatures ranging from a high of 81.7°F (27.6°C) to a low of 65.3°F (18.5°C).
The month with the most sunshine is August, with an average of 9.9h of sunshine.
With an average relative humidity of 73%, October is the least humid month.
November and December are months with the least rain in Winfield, Illinois, when the rain falls for 10.2 days and typically aggregates up to 1.65" (42mm) of rain.
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Winfield, 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°F).
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure
Winfield, 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:
30.09"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
Winfield, IL
- Average wind speed in January:
9.8mph - 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:
6.3mph - Average wind speed in August:
6mph - Average wind speed in September:
7mph - Average wind speed in October:
8.7mph - 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 (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Winfield, 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
Winfield, IL
- Average rainfall in January:
1.81" - Average rainfall in February:
1.81" - Average rainfall in March:
1.97" - Average rainfall in April:
3.78" - Average rainfall in May:
4.45" - Average rainfall in June:
4.29"
- Average rainfall in July:
3.7" - Average rainfall in August:
3.35" - Average rainfall in September:
2.48" - Average rainfall in October:
2.83" - Average rainfall in November:
1.65" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are November and December (1.65").
Average rainfall days
Winfield, IL
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
17 days - Average rainfall days in May:
19.2 days - Average rainfall days in June:
19.3 days
- Average rainfall days in July:
20.1 days - Average rainfall days in August:
17.9 days - Average rainfall days in September:
14.6 days - Average rainfall days in October:
13.9 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is February (5.8 days).
Average snowfall
Winfield, IL
- Average snowfall in January:
5.87" - Average snowfall in February:
5.12" - Average snowfall in March:
1.54" - Average snowfall in April:
2.6" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Winfield, IL
- Average snowfall days in January:
13.1 days - Average snowfall days in February:
11.5 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
1.8 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:
0.5 days - Average snowfall days in November:
4 days - Average snowfall days in December:
9.7 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Winfield, IL
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - 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 48min - Average daylight in December:
9h and 12min
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 42min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 36min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 6min
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 42min).
Average sunshine days
Winfield, IL
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
12.2 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
9.4 days - Average sunshine days in May:
9.4 days - Average sunshine days in June:
8.4 days
- Average sunshine days in July:
8.2 days - Average sunshine days in August:
9.3 days - Average sunshine days in September:
12.3 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
16.1 days - Average sunshine days in December:
15.7 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is July (8.2 days).
Average UV index
Winfield, IL
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Winfield, IL
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility
Winfield, IL
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
