Climate and monthly weather forecastWinnebago, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Winnebago, Illinois, with an average temperature fluctuating between 26.2°F (-3.2°C) and 13.8°F (-10.1°C). The lowest temperatures are recorded in January, with averages reaching a high of 26.2°F (-3.2°C) and a low of 13.8°F (-10.1°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Winnebago, Illinois, with an average temperature fluctuating between 17.1°F (-8.3°C) and 30.2°F (-1°C). February's average high-temperature stands at a still freezing cold 30.2°F (-1°C), showing little deviation from January's 26.2°F (-3.2°C). Weather in February »Weather in March
March, the first month of the spring in Winnebago, is a chilly month, with an average temperature varying between 29.3°F (-1.5°C) and 44.2°F (6.8°C). Winnebago in March sees a temperature change, with average high-temperatures moving from a freezing cold 30.2°F (-1°C) in February to a chilly 44.2°F (6.8°C). Weather in March »Weather in April
April is a refreshing spring month in Winnebago, Illinois, with an average temperature fluctuating between 39.7°F (4.3°C) and 55.9°F (13.3°C). Winnebago's weather in April presents a rise in the average high-temperature, moving from a frosty 44.2°F (6.8°C) in March to a refreshing 55.9°F (13.3°C). Weather in April »Weather in May
May, the last month of the spring in Winnebago, is an agreeable month, with an average temperature fluctuating between 50.9°F (10.5°C) and 68.5°F (20.3°C). As Winnebago transitions into May, the average high-temperature is observed to rise from a refreshing 55.9°F (13.3°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 Winnebago, Illinois, with an average temperature ranging between min 59.7°F (15.4°C) and max 77.2°F (25.1°C). June comes with a subtle rise, with the average high-temperature adjusting from a pleasant 68.5°F (20.3°C) in May to a moderately hot 77.2°F (25.1°C). Weather in June »Weather in July
July, like June, in Winnebago, Illinois, is a moderately hot summer month, with an average temperature ranging between max 79.9°F (26.6°C) and min 63°F (17.2°C). July is the month when Winnebago's temperatures reach their peak, with averages of 79.9°F (26.6°C) and lows of 63°F (17.2°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Winnebago, Illinois, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 60.6°F (15.9°C). An average high-temperature of a still moderately hot 78.1°F (25.6°C) marks August, exhibiting a close resemblance to the conditions in July. Weather in August »Weather in September
September, the first month of the autumn in Winnebago, is also an agreeable month, with an average temperature fluctuating between 54.1°F (12.3°C) and 72.7°F (22.6°C). September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 78.1°F (25.6°C) to an agreeable 72.7°F (22.6°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Winnebago, Illinois, with an average temperature ranging between min 43.5°F (6.4°C) and max 59.4°F (15.2°C). The shift from September to October involves a decrease in the average high-temperature, from an agreeable 72.7°F (22.6°C) to a moderate 59.4°F (15.2°C). Weather in October »Weather in November
November, the last month of the autumn in Winnebago, is also a frosty month, with an average temperature ranging between max 44.8°F (7.1°C) and min 31.8°F (-0.1°C). In Winnebago, the onset of November is marked by a decreased average high-temperature, declining from October's mild 59.4°F (15.2°C) to a frosty 44.8°F (7.1°C). Weather in November »Weather in December
December, the first month of the winter in Winnebago, is also a wintry month, with an average temperature varying between 22.5°F (-5.3°C) and 32.4°F (0.2°C). December brings a drop in Winnebago's average high-temperature, falling from a chilly 44.8°F (7.1°C) in November to a wintry 32.4°F (0.2°C). Weather in December »Updated: Jul 26, 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
With an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 13.8°F (-10.1°C), January is the coldest month.
The most humid month is January, with an average relative humidity of 86%.
In Winnebago, during the entire year, the rain falls for 148.1 days and collects up to 28.39" (721mm) of precipitation.
Months with snowfall in Winnebago are January through April, October through December.
January is the month with the most snowfall. Snow falls for 13 days and accumulates 4.88" (124mm) of snow.
In Winnebago, during the entire year, snow falls for 45.9 days and aggregates up to 15.67" (398mm) of snow.
With an average of 3.6h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.
The month with the least rainfall is February, when the rain falls for 4.3 days and typically collects 1.26" (32mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Winnebago, 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.
April and October, with an average relative humidity of 75%, are the least humid months.
In Winnebago, snow does not fall in May through September.
May through August, with an average maximum UV index of 5, are months with the highest UV index.
The month with the most rainfall is June, when the rain falls for 18.1 days and typically aggregates up to 4.02" (102mm) of precipitation.
June has the longest days of the year, with an average of 15h and 12min of daylight.
July is the warmest month of the year, registering average temperatures as high as 79.9°F (26.6°C) and as low as 63°F (17.2°C).
The month with the most sunshine is July, with an average of 9.7h of sunshine.
With an average of 9h and 12min of daylight, December has the shortest days of the year.
Average temperature
Winnebago, IL
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (26.2°F).
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure
Winnebago, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.11"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:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Winnebago, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.6mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Winnebago, IL
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall
Winnebago, IL
- Average rainfall in January:
1.42" - Average rainfall in February:
1.26" - Average rainfall in March:
1.69" - Average rainfall in April:
3.31" - Average rainfall in May:
3.86" - Average rainfall in June:
4.02"
- Average rainfall in July:
2.91" - Average rainfall in August:
2.32" - Average rainfall in September:
2.13" - Average rainfall in October:
2.56" - Average rainfall in November:
1.54" - Average rainfall in December:
1.38"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days
Winnebago, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
16.4 days - Average rainfall days in May:
19 days - Average rainfall days in June:
18.1 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
Winnebago, IL
The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Winnebago, IL
- Average snowfall days in January:
13 days - Average snowfall days in February:
10.3 days - Average snowfall days in March:
6.2 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:
0.7 days - Average snowfall days in November:
3.8 days - Average snowfall days in December:
10.1 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Winnebago, 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 36min - Average sunshine in February:
3h and 42min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 36min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 18min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days
Winnebago, IL
- Average sunshine days in January:
14.2 days - Average sunshine days in February:
13.7 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
10.6 days - Average sunshine days in May:
10.2 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
15.3 days - Average sunshine days in November:
17.1 days - Average sunshine days in December:
16.1 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (9.8 days).
Average UV index
Winnebago, IL
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Winnebago, IL
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility
Winnebago, IL
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
