Climate and monthly weather forecastBanner, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Banner, Illinois, with an average temperature varying between 31.3°F (-0.4°C) and 19.2°F (-7.1°C). Banner's January weather reaches an average high of 31.3°F (-0.4°C) and an average low of 19.2°F (-7.1°C), making it the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a cold month in Banner, Illinois, with temperature in the range of an average low of 22.5°F (-5.3°C) and an average high of 36.1°F (2.3°C). February's arrival shows an average high-temperature of a cold 36.1°F (2.3°C), hardly different from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Banner, Illinois, with an average temperature ranging between max 49.5°F (9.7°C) and min 34.2°F (1.2°C). As February gives way to March, the average high-temperature displays an increase, moving from an icy 36.1°F (2.3°C) to a chilly 49.5°F (9.7°C). Weather in March »Weather in April
April is an enjoyable spring month in Banner, Illinois, with an average temperature ranging between max 61.3°F (16.3°C) and min 44.2°F (6.8°C). The beginning of April marks a shift in the average high-temperature, moving from March's frosty 49.5°F (9.7°C) to an enjoyable 61.3°F (16.3°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Banner, Illinois, with an average temperature varying between 72°F (22.2°C) and 55°F (12.8°C). As April transitions into May, a change in temperatures is observed, with average highs moving from a refreshing 61.3°F (16.3°C) to a pleasant 72°F (22.2°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Banner, Illinois, with an average temperature fluctuating between 63.7°F (17.6°C) and 80.4°F (26.9°C). The arrival of June introduces a minor uplift in high-temperatures, adjusting from a pleasant 72°F (22.2°C) in May to a warm 80.4°F (26.9°C). Weather in June »Weather in July
July, like June, in Banner, Illinois, is a moderately hot summer month, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 82.4°F (28°C). July, characterized by an average high temperature of 82.4°F (28°C) and a low temperature of 65.7°F (18.7°C), is generally the warmest month. July's mean heat index is computed to be a tropical 91.4°F (33°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Banner, Illinois, with an average temperature ranging between min 63.5°F (17.5°C) and max 81.9°F (27.7°C). The shift from July to August is characterized by an average high-temperature of a still moderately hot 81.9°F (27.7°C), not significantly different from the 82.4°F (28°C) of July. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Banner, Illinois, with an average temperature ranging between max 76.5°F (24.7°C) and min 57.4°F (14.1°C). The beginning of September brings a minor change in the average high-temperature, shifting from 81.9°F (27.7°C) in August to a still warm 76.5°F (24.7°C). Weather in September »Weather in October
October, like September, in Banner, Illinois, is another refreshing autumn month, with an average temperature varying between 46.2°F (7.9°C) and 62.8°F (17.1°C). October is characterized by a reduction in the average high-temperature, from a warm 76.5°F (24.7°C) in September to a refreshing 62.8°F (17.1°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Banner, Illinois, with an average temperature fluctuating between 48.9°F (9.4°C) and 34.7°F (1.5°C). During Banner's transition into November, the average high-temperature lessens, moving from a comfortable 62.8°F (17.1°C) in October to a frosty 48.9°F (9.4°C). Weather in November »Weather in December
December, the first month of the winter in Banner, is also an icy month, with an average temperature ranging between max 36.9°F (2.7°C) and min 26.2°F (-3.2°C). Banner in December experiences a subtle temperature decline, with average high-temperatures reducing from a frosty 48.9°F (9.4°C) in November to a wintry 36.9°F (2.7°C). Weather in December »Updated: Jul 31, 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
Banner witnesses the coldest weather in January, with temperatures averaging a high of 31.3°F (-0.4°C) and a low of 19.2°F (-7.1°C).
Throughout the year, in Banner, there are 98 rainfall days, and 8.86" (225mm) of precipitation is accumulated.
January through April, October through December are months with snowfall.
January is the month with the most snowfall. Snow falls for 6.4 days and accumulates 1.1" (28mm) of snow.
Throughout the year, there are 19.9 snowfall days, and 3.07" (78mm) of snow is accumulated.
With an average of 4h of sunshine, January has the least sunshine of the year.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Banner.
February and December are months with the least rain when the rain falls for 3.3 days and typically aggregates up to 0.35" (9mm) of rain.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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. Rain falls for 12.9 days and accumulates 1.3" (33mm) of precipitation.
In Banner, snow does not fall in May through September.
The month with the longest days is June, with an average of 15h and 0min of daylight.
June and July, with an average of 10.1h of sunshine, are months with the most sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
Temperature readings reach their annual highs in July, averaging 82.4°F (28°C) and a minimum average of 65.7°F (18.7°C).
The most humid month is July, with an average relative humidity of 83%.
With an average relative humidity of 71%, October is the least humid month.
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Banner, IL
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (31.3°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure
Banner, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"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:
30.02"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Banner, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.7mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.5mph - Average wind speed in October:
9.3mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Banner, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Banner, IL
- Average rainfall in January:
0.39" - Average rainfall in February:
0.35" - Average rainfall in March:
0.63" - Average rainfall in April:
0.98" - Average rainfall in May:
1.3" - Average rainfall in June:
1.1"
- Average rainfall in July:
0.83" - Average rainfall in August:
0.71" - Average rainfall in September:
0.87" - Average rainfall in October:
0.83" - Average rainfall in November:
0.51" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is May (1.3").
The driest months (with the least rainfall) are February and December (0.35").
Average rainfall days
Banner, IL
- Average rainfall days in January:
3 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
11.1 days - Average rainfall days in May:
12.9 days - Average rainfall days in June:
13.2 days
- Average rainfall days in July:
11.2 days - Average rainfall days in August:
9 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
7.4 days - Average rainfall days in November:
5.6 days - Average rainfall days in December:
4 days
The month with the highest number of rainy days is June (13.2 days).
The month with the least rainy days is January (3 days).
Average snowfall
Banner, IL
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Banner, IL
- Average snowfall days in January:
6.4 days - Average snowfall days in February:
5.1 days - Average snowfall days in March:
2.7 days - Average snowfall days in April:
0.6 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:
0.1 days - Average snowfall days in November:
1.2 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Banner, IL
- Average daylight in January:
9h and 42min - 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 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - 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 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 6min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Banner, IL
- Average sunshine days in January:
23.6 days - Average sunshine days in February:
21.4 days - Average sunshine days in March:
19.6 days - Average sunshine days in April:
17.6 days - Average sunshine days in May:
16 days - Average sunshine days in June:
14.4 days
- Average sunshine days in July:
16 days - Average sunshine days in August:
18.8 days - Average sunshine days in September:
20.4 days - Average sunshine days in October:
22.5 days - Average sunshine days in November:
22.5 days - Average sunshine days in December:
23.4 days
The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is June (14.4 days).
Average UV index
Banner, IL
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Banner, IL
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
Banner, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
