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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is a wintry winter month in Sherman, Illinois, with an average temperature fluctuating between 33.1°F (0.6°C) and 20.8°F (-6.2°C). The lowest temperatures are recorded in January, with averages reaching a high of 33.1°F (0.6°C) and a low of 20.8°F (-6.2°C). Weather in January »
Weather in February
February, the last month of the winter in Sherman, is another cold month, with an average temperature fluctuating between 37.9°F (3.3°C) and 25°F (-3.9°C). February commences with an average high-temperature of a still wintry 37.9°F (3.3°C), showing little deviation from January's 33.1°F (0.6°C). Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Sherman, Illinois, with an average temperature varying between 51.1°F (10.6°C) and 35.6°F (2°C). Sherman's transition into March sees a rise in the average high-temperature, advancing from a wintry 37.9°F (3.3°C) in February to a cool 51.1°F (10.6°C). Weather in March »
Weather in April
April in Sherman, Illinois, is an enjoyable spring month, with an average temperature ranging between max 63.1°F (17.3°C) and min 46.2°F (7.9°C). April's arrival brings a temperature shift, moving from a cool 51.1°F (10.6°C) in March to an enjoyable 63.1°F (17.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Sherman, Illinois, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 72.9°F (22.7°C). The transition from April to May brings a temperature rise, with average high-temperatures increasing from a comfortable 63.1°F (17.3°C) to an agreeable 72.9°F (22.7°C). Weather in May »
Weather in June
June, the first month of the summer in Sherman, is a warm month, with temperature in the range of an average low of 64.4°F (18°C) and an average high of 81.1°F (27.3°C). Sherman's June weather indicates a minor ascent in high-temperatures, adjusting from a pleasant 72.9°F (22.7°C) in May to a warm 81.1°F (27.3°C). Weather in June »
Weather in July
July, like June, in Sherman, Illinois, is a moderately hot summer month, with an average temperature varying between 82.8°F (28.2°C) and 66°F (18.9°C). The month of July sees the highest average temperatures, reaching 82.8°F (28.2°C) at the peak and 66°F (18.9°C) at the low. July's average heat index is calculated 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 Sherman, Illinois, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 81.7°F (27.6°C). Stepping into August, Sherman records an average high-temperature of a still warm 81.7°F (27.6°C), almost consistent with July. Weather in August »
Weather in September
September, the first month of the autumn in Sherman, is also a moderately hot month, with an average temperature ranging between min 58.5°F (14.7°C) and max 77.2°F (25.1°C). September's presence records an average high-temperature of a still moderately hot 77.2°F (25.1°C), closely mirroring August's climate. Weather in September »
Weather in October
October, like September, in Sherman, Illinois, is another refreshing autumn month, with an average temperature ranging between max 64°F (17.8°C) and min 48.2°F (9°C). The decrease of average high-temperatures is mild in October, with a decline from a moderately hot 77.2°F (25.1°C) in September to an enjoyable 64°F (17.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Sherman, is also a fresh month, with an average temperature varying between 50°F (10°C) and 36.5°F (2.5°C). The beginning of November marks a decrease in the average high-temperature, transitioning from a refreshing 64°F (17.8°C) in October to a fresh 50°F (10°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Sherman, Illinois, with an average temperature varying between 28.2°F (-2.1°C) and 38.7°F (3.7°C). December's onset corresponds with a shift in the average high-temperature, moving from a cool 50°F (10°C) in November to an icy 38.7°F (3.7°C). Weather in December »
Updated: Aug 6, 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
What time of the year is the coldest?
January is the coldest month, with an average high-temperature of 33.1°F (0.6°C) and an average low-temperature of 20.8°F (-6.2°C).
How much does it rain?
In Sherman, during the entire year, the rain falls for 131.5 days and collects up to 18.54" (471mm) of precipitation.
When does it snow?
Months with snowfall are January through April, November and December.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 8 days and typically aggregates up to 1.81" (46mm) of snow.
How much does it snow?
Throughout the year, there are 24.5 snowfall days, and 5.51" (140mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4.1h of sunshine.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST)?
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.
When it does not snow?
In Sherman, snow does not fall in May through October.
What is the rainiest month?
The month with the most rainfall in Sherman is June, when the rain falls for 14.6 days and typically aggregates up to 2.36" (60mm) of precipitation.
When are the longest days?
With an average of 15h and 0min of daylight, June has the longest days of the year.
What month has the most sunshine?
With an average of 10.4h of sunshine, June has the most sunshine of the year.
What is the month with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What time of the year is the hottest?
July, recording an average high temperature of 82.8°F (28.2°C) and a low temperature of 66°F (18.9°C), is Sherman's warmest month.
What is the most humid month?
With an average relative humidity of 84%, July is the most humid month.
What is the least humid month?
With an average relative humidity of 70%, October is the least humid month.
What is the driest month?
December is the month with the least rainfall. Rain falls for 6.6 days and accumulates 0.83" (21mm) of precipitation.
What is the month with the shortest days in Sherman?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Sherman, IL
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.1°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure
Sherman, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"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:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Sherman, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.3mph
- 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:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.8mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Sherman, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Sherman, IL
- Average rainfall in January:
1.06" - Average rainfall in February:
0.98" - Average rainfall in March:
1.34" - Average rainfall in April:
2.05" - Average rainfall in May:
2.09" - Average rainfall in June:
2.36"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.89" - Average rainfall in September:
1.85" - Average rainfall in October:
1.46" - Average rainfall in November:
0.94" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is December (0.83").
Average rainfall days
Sherman, IL
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
17 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
6.6 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.7 days).
Average snowfall
Sherman, IL
The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Sherman, IL
- Average snowfall days in January:
8 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.5 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:
1.5 days - Average snowfall days in December:
4.8 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Sherman, IL
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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 24min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Sherman, IL
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.5 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
13.1 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
20 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.5 days).
Average UV index
Sherman, 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
Sherman, IL
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are June, August and September (Cloud cover 30).
Average visibility
Sherman, 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).
Sherman, Illinois, USA
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