Expand
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 an icy winter month in McLeansboro, Illinois, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 38.5°F (3.6°C). January, recording an average high temperature of 38.5°F (3.6°C) and a low temperature of 25.7°F (-3.5°C), is McLeansboro's coldest month. Weather in January »
Weather in February
February, the last month of the winter in McLeansboro, is a frosty month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 43.5°F (6.4°C). The onset of February brings with it an average high-temperature of a frosty 43.5°F (6.4°C), showing a negligible variation from the month before. Weather in February »
Weather in March
March, the first month of the spring in McLeansboro, is a cool month, with an average temperature fluctuating between 38.8°F (3.8°C) and 54.5°F (12.5°C). The arrival of March sees a shift in the average high-temperature, moving from a chilly 43.5°F (6.4°C) in February to a fresh 54.5°F (12.5°C). Weather in March »
Weather in April
April in McLeansboro, Illinois, is a comfortable spring month, with an average temperature varying between 66°F (18.9°C) and 48.7°F (9.3°C). As McLeansboro welcomes April, the average high-temperature sees a rise, transitioning from a fresh 54.5°F (12.5°C) in March to a refreshing 66°F (18.9°C). Weather in April »
Weather in May
May, the last month of the spring in McLeansboro, is a warm month, with temperature in the range of an average low of 58.3°F (14.6°C) and an average high of 75.2°F (24°C). As May begins, there is an increase in the average high-temperature, moving from an enjoyable 66°F (18.9°C) in April to a warm 75.2°F (24°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in McLeansboro, Illinois, with an average temperature ranging between min 66.6°F (19.2°C) and max 84.2°F (29°C). With the onset of June, McLeansboro sees a temperature rise, with the average high-temperature moving from May's warm 75.2°F (24°C) to a still moderately hot 84.2°F (29°C). Weather in June »
Weather in July
July in McLeansboro, Illinois, is a tropical summer month, with temperature in the range of an average low of 68.2°F (20.1°C) and an average high of 86.4°F (30.2°C). With an average high-temperature of 86.4°F (30.2°C) and an average low-temperature of 68.2°F (20.1°C), July is the warmest month. For most parts of July, the heat index is computed to be a sweltering 100.4°F (38°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in McLeansboro, Illinois, with an average temperature varying between 66.2°F (19°C) and 84.9°F (29.4°C). McLeansboro's average high-temperature marks a warm 84.9°F (29.4°C) with the advent of August, closely mirroring that of the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in McLeansboro, Illinois, with an average temperature ranging between max 79.7°F (26.5°C) and min 60.6°F (15.9°C). The shift into September finds McLeansboro at an average high-temperature of a still moderately hot 79.7°F (26.5°C), closely comparable to August's conditions. Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in McLeansboro, Illinois, with an average temperature varying between 67.1°F (19.5°C) and 49.6°F (9.8°C). The shift from September to October corresponds with a decrease in the average high-temperature, down to an enjoyable 67.1°F (19.5°C) from a moderately hot 79.7°F (26.5°C). Weather in October »
Weather in November
November, the last month of the autumn in McLeansboro, is another cool month, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 53.2°F (11.8°C). The shift from October to November corresponds with a decrease in the average high-temperature, down to a cool 53.2°F (11.8°C) from a refreshing 67.1°F (19.5°C). Weather in November »
Weather in December
December, the first month of the winter in McLeansboro, is also a frosty month, with an average temperature ranging between max 43.3°F (6.3°C) and min 31.3°F (-0.4°C). December shows a mild decline in the average high-temperature, falling from November's cool 53.2°F (11.8°C) to a frosty 43.3°F (6.3°C). Weather in December »
Updated: Jul 9, 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 part of the year is the coldest?
McLeansboro notes the coldest temperatures in January, with a average high of 38.5°F (3.6°C) and a low of 25.7°F (-3.5°C).
How many days does it rain?
Throughout the year, there are 143.1 rainfall days, and 29.65" (753mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall.
How much does it snow?
Throughout the year, there are 16.7 snowfall days, and 5.79" (147mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.4h of sunshine.
What is the month with 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 snowiest month?
The month with the most snowfall is February, when snow falls for 4.6 days and typically aggregates up to 1.42" (36mm) of snow.
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.
What is the rainiest month?
The month with the most rainfall is April, when the rain falls for 14.3 days and typically aggregates up to 4.13" (105mm) of precipitation.
What is the most humid month?
With an average relative humidity of 79%, May is the most humid month in McLeansboro.
When it does not snow?
May through September are months without snowfall.
What is the month with the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
The month with the longest days is June, with an average of 14h and 48min of daylight.
What are the months with the most sunshine?
June and July, with an average of 10.5h of sunshine, are months with the most sunshine in McLeansboro.
What is the hottest time of year?
McLeansboro reaches its average highest temperatures in July, measuring 86.4°F (30.2°C) at the peak and 68.2°F (20.1°C) at the lowest.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.57" (40mm) of precipitation.
What is the least humid month?
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 36min of daylight.
Average temperature
McLeansboro, IL
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (38.5°F).
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure
McLeansboro, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
McLeansboro, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7mph
- Average wind speed in July:
6mph - Average wind speed in August:
6mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.4mph - Average wind speed in November:
8.9mph - Average wind speed in December:
9.1mph
The windiest months (with the highest average wind speed) are January, February and March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity
McLeansboro, IL
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall
McLeansboro, IL
- Average rainfall in January:
1.89" - Average rainfall in February:
2.17" - Average rainfall in March:
2.6" - Average rainfall in April:
4.13" - Average rainfall in May:
3.15" - Average rainfall in June:
2.91"
The wettest month (with the highest rainfall) is April (4.13").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days
McLeansboro, IL
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
13.4 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16.2 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
15.4 days - Average rainfall days in August:
13.4 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
9.4 days
The month with the highest number of rainy days is May (16.2 days).
The months with the least rainy days are January and February (8.3 days).
Average snowfall
McLeansboro, IL
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
McLeansboro, IL
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
4.6 days - Average snowfall days in March:
2.3 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:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
McLeansboro, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - 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 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
McLeansboro, IL
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
15.7 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
13.5 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
15.7 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
20.3 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
19.3 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
McLeansboro, IL
The months with the highest UV index are May, 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
McLeansboro, IL
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility
McLeansboro, 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).
McLeansboro, Illinois, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location