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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, like December, in Blue Mound, Illinois, is an icy winter month, with temperature in the range of an average high of 33.6°F (0.9°C) and an average low of 21.6°F (-5.8°C). January, with average temperatures reaching a high of 33.6°F (0.9°C) and a low of 21.6°F (-5.8°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Blue Mound, is also an icy month, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 25.5°F (-3.6°C). Blue Mound experiences an average high-temperature of a still wintry 38.8°F (3.8°C) in February, marking an insignificant shift from 33.6°F (0.9°C) in January. Weather in February »
Weather in March
March, the first month of the spring in Blue Mound, is a cool month, with temperature in the range of an average low of 36°F (2.2°C) and an average high of 50.9°F (10.5°C). March's arrival signals an increase in average high-temperatures, moving from February's wintry 38.8°F (3.8°C) to a cool 50.9°F (10.5°C). Weather in March »
Weather in April
April is an enjoyable spring month in Blue Mound, Illinois, with an average temperature ranging between max 62.4°F (16.9°C) and min 46.2°F (7.9°C). Blue Mound sees a rise in temperature during April, with average high-temperatures transitioning from a cool 50.9°F (10.5°C) in March to a refreshing 62.4°F (16.9°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Blue Mound, Illinois, with an average temperature varying between 56.7°F (13.7°C) and 72.9°F (22.7°C). An upsurge in temperatures occurs as April gives way to May, with average highs shifting from an enjoyable 62.4°F (16.9°C) to a pleasant 72.9°F (22.7°C). Weather in May »
Weather in June
June, the first month of the summer in Blue Mound, is a warm month, with an average temperature varying between 81.1°F (27.3°C) and 64.4°F (18°C). Blue Mound's weather shows a minor temperature rise with the arrival of June, moving 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 Blue Mound, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 66°F (18.9°C) and 82.4°F (28°C). July, on average, is the warmest month, registering a high temperature of 82.4°F (28°C) and a low of 66°F (18.9°C). For most parts of July, the heat index is estimated at a hot 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Blue Mound, is also a moderately hot month, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 64°F (17.8°C). Blue Mound's August average high-temperature settles at a still warm 81.5°F (27.5°C), showing a near match with the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Blue Mound, Illinois, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 58.5°F (14.7°C). Blue Mound's weather in September displays an average high-temperature of a still moderately hot 77.2°F (25.1°C), showing minor disparity from August's 81.5°F (27.5°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Blue Mound, Illinois, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 64°F (17.8°C). October weather is marked by a drop in the average high-temperature, falling from a warm 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 Blue Mound, is also a fresh month, with an average temperature fluctuating between 36.3°F (2.4°C) and 50.2°F (10.1°C). The decrease of average high-temperatures is mild in November, with a decline from a comfortable 64°F (17.8°C) in October to a fresh 50.2°F (10.1°C). Weather in November »
Weather in December
December, the first month of the winter in Blue Mound, is still a cold month, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 28.2°F (-2.1°C). The shift from November to December involves a decrease in the average high-temperature, from a cool 50.2°F (10.1°C) to an icy 38.8°F (3.8°C). Weather in December »
Updated: Jul 8, 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 month is the coldest?
January, having an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21.6°F (-5.8°C), is the coldest month.
How many days does it rain?
Throughout the year, there are 139.6 rainfall days, and 24.25" (616mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March, November and December.
How many days does it snow?
Throughout the year, there are 23.6 snowfall days, and 8.54" (217mm) 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.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the driest month?
February and December are months with the least rain when the rain falls for 6.9 days and typically aggregates up to 1.38" (35mm) of rain.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 6.3 days and typically aggregates up to 2.8" (71mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Blue Mound, 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.
What is the rainiest month?
The months with the most rainfall are April and May, with an average 2.91" (74mm) of precipitation.
When it does not snow?
In Blue Mound, snow does not fall in April through October.
When are the longest days in Blue Mound?
With an average of 14h and 54min of daylight, June has the longest days of the year in Blue Mound.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 10.4h of sunshine.
When is the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What part of the year is the hottest?
July is the month that records the highest temperatures, with averages ranging from a high of 82.4°F (28°C) to a low of 66°F (18.9°C).
What is the most humid month?
July is the most humid month, with an average relative humidity of 84%.
What is the least humid month in Blue Mound?
With an average relative humidity of 70%, October is the least humid month.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Blue Mound, 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 (33.6°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Blue Mound, 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:
29.96"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:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Blue Mound, IL
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.1mph - Average wind speed in October:
9.3mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity
Blue Mound, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Blue Mound, IL
- Average rainfall in January:
1.5" - Average rainfall in February:
1.38" - Average rainfall in March:
2.01" - Average rainfall in April:
2.91" - Average rainfall in May:
2.91" - Average rainfall in June:
2.83"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest months (with the least rainfall) are February and December (1.38").
Average rainfall days
Blue Mound, IL
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
7.7 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.9 days).
Average snowfall
Blue Mound, IL
The month with the highest snowfall is February (2.8").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Blue Mound, IL
- Average snowfall days in January:
7.6 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
4.9 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Blue Mound, 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:
14h and 5min
- 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: 14h and 54min).
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 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 2min - 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
Blue Mound, IL
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
15.7 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
19.7 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
18.3 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is May (11.6 days).
Average UV index
Blue Mound, 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
Blue Mound, IL
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility
Blue Mound, 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).
Blue Mound, Illinois, USA
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