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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 another cold winter month in Lebanon, Illinois, with temperature in the range of an average low of 24.8°F (-4°C) and an average high of 37.8°F (3.2°C). Lebanon witnesses the coldest weather in January, with temperatures averaging a high of 37.8°F (3.2°C) and a low of 24.8°F (-4°C). Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Lebanon, Illinois, with an average temperature fluctuating between 42.3°F (5.7°C) and 27.9°F (-2.3°C). February's commencement is accompanied by an average high-temperature of a still cold 42.3°F (5.7°C), diverging marginally from January's 37.8°F (3.2°C). Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Lebanon, Illinois, with an average temperature ranging between min 37.9°F (3.3°C) and max 54.5°F (12.5°C). As March arrives, Lebanon's weather shows an increase in high-temperatures, moving from February's wintry 42.3°F (5.7°C) to a cool 54.5°F (12.5°C). Weather in March »
Weather in April
April is a comfortable spring month in Lebanon, Illinois, with an average temperature varying between 47.8°F (8.8°C) and 65.1°F (18.4°C). Noticing a change, the average high-temperature during April moves from March's fresh 54.5°F (12.5°C) to an enjoyable 65.1°F (18.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Lebanon, Illinois, with an average temperature fluctuating between 74.8°F (23.8°C) and 57.7°F (14.3°C). Lebanon sees a rise in temperature during May, with average high-temperatures transitioning from an enjoyable 65.1°F (18.4°C) in April to a warm 74.8°F (23.8°C). Weather in May »
Weather in June
June, the first month of the summer in Lebanon, is still a warm month, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 66.6°F (19.2°C). June's arrival coincides with a subtle temperature rise, moving from May's 74.8°F (23.8°C) to a still warm 83.7°F (28.7°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Lebanon, Illinois, with an average temperature fluctuating between 68°F (20°C) and 85.6°F (29.8°C). Temperature records mark July as the warmest month, with highs averaging 85.6°F (29.8°C) and lows at 68°F (20°C). For July, the heat index is appraised at a very hot 98.6°F (37°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Lebanon, Illinois, with an average temperature fluctuating between 84.2°F (29°C) and 65.8°F (18.8°C). The average high-temperature during August registers at a still warm 84.2°F (29°C), closely corresponding to the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Lebanon, is also a moderately hot month, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 79.2°F (26.2°C). Transitioning into September, Lebanon experiences an average high-temperature of a still moderately hot 79.2°F (26.2°C), marking a minor shift from the preceding month. Weather in September »
Weather in October
October, like September, in Lebanon, Illinois, is another enjoyable autumn month, with an average temperature ranging between min 48.9°F (9.4°C) and max 66.4°F (19.1°C). With October's arrival, Lebanon's weather changes as the average high-temperature falls from a moderately hot 79.2°F (26.2°C) in September to an enjoyable 66.4°F (19.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Lebanon, is another cool month, with temperature in the range of an average high of 53.2°F (11.8°C) and an average low of 37.8°F (3.2°C). The onset of November coincides with a reduction in the average high-temperature, falling from a refreshing 66.4°F (19.1°C) in October to a cool 53.2°F (11.8°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Lebanon, Illinois, with an average temperature ranging between max 42.4°F (5.8°C) and min 30.2°F (-1°C). A shift in Lebanon's weather is observed as November turns into December, with the average high temperature reducing from a fresh 53.2°F (11.8°C) to an icy 42.4°F (5.8°C). Weather in December »
Updated: Aug 10, 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 is the coldest time of year?
Temperature readings reach their annual highs in January, averaging 37.8°F (3.2°C) and a minimum average of 24.8°F (-4°C).
How much does it rain?
Throughout the year, there are 110.1 rainfall days, and 11.1" (282mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March, November and December.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 4.7 days and accumulates 0.51" (13mm) of snow.
How much does it snow?
Throughout the year, there are 13.8 snowfall days, and 1.38" (35mm) of snow is accumulated.
What is the month with the least sunshine in Lebanon?
With an average of 4.5h of sunshine, January has the least sunshine of the year.
What are the months 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 driest month?
February is the month with the least rainfall. Rain falls for 5.3 days and accumulates 0.47" (12mm) of precipitation.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Lebanon, Illinois, 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 Lebanon, snow does not fall in April through October.
What are the most humid months?
May, July and August, with an average relative humidity of 79%, are most humid months in Lebanon.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 12.7 days and typically aggregates up to 1.5" (38mm) of precipitation.
What are the months with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days?
With an average of 14h and 48min of daylight, June has the longest days of the year in Lebanon.
What are the months with the most sunshine?
June and July, with an average of 10.4h of sunshine, are months with the most sunshine.
What part of the year is the hottest?
Temperature readings reach their annual highs in July, averaging 85.6°F (29.8°C) and a minimum average of 68°F (20°C).
What is the least humid month?
The least humid month is October, with an average relative humidity of 70%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Lebanon, IL
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure
Lebanon, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"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:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Lebanon, IL
- Average wind speed in January:
9.5mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.3mph - Average wind speed in April:
9.1mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.2mph - Average wind speed in October:
8mph - Average wind speed in November:
8.6mph - Average wind speed in December:
8.8mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity
Lebanon, IL
The months with the highest relative humidity are May, July and August (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Lebanon, IL
- Average rainfall in January:
0.71" - Average rainfall in February:
0.47" - Average rainfall in March:
0.71" - Average rainfall in April:
1.1" - Average rainfall in May:
1.5" - Average rainfall in June:
1.14"
- Average rainfall in July:
1.34" - Average rainfall in August:
1.26" - Average rainfall in September:
0.63" - Average rainfall in October:
1.02" - Average rainfall in November:
0.59" - Average rainfall in December:
0.63"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days
Lebanon, IL
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
9.7 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
12.7 days - Average rainfall days in June:
10.9 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
11 days - Average rainfall days in September:
9.6 days - Average rainfall days in October:
8.4 days - Average rainfall days in November:
6.9 days - Average rainfall days in December:
5.3 days
The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is January (4.8 days).
Average snowfall
Lebanon, IL
The month with the highest snowfall is January (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Lebanon, IL
- Average snowfall days in January:
4.7 days - Average snowfall days in February:
4 days - Average snowfall days in March:
1.4 days - Average snowfall days in April:
0.1 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:
0.7 days - Average snowfall days in December:
2.9 days
The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Lebanon, 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 3min
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 30min).
- Average sunshine in January:
4h and 3min - 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 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Lebanon, IL
- Average sunshine days in January:
23.2 days - Average sunshine days in February:
19.6 days - Average sunshine days in March:
18.4 days - Average sunshine days in April:
16.2 days - Average sunshine days in May:
15.6 days - Average sunshine days in June:
16.5 days
- Average sunshine days in July:
15.4 days - Average sunshine days in August:
18 days - Average sunshine days in September:
18.5 days - Average sunshine days in October:
22 days - Average sunshine days in November:
21.9 days - Average sunshine days in December:
22.9 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is July (15.4 days).
Average UV index
Lebanon, 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
Lebanon, IL
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility
Lebanon, 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).
Lebanon, Illinois, USA
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