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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 Littleton, Illinois, with temperature in the range of an average high of 32.4°F (0.2°C) and an average low of 20.3°F (-6.5°C). January is the month that records the lowest temperatures, with averages ranging from a high of 32.4°F (0.2°C) to a low of 20.3°F (-6.5°C). Weather in January »
Weather in February
February, the last month of the winter in Littleton, is also an icy month, with an average temperature fluctuating between 23.9°F (-4.5°C) and 37.4°F (3°C). February begins with an average high-temperature of a still icy 37.4°F (3°C), reflecting close similarity to the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Littleton, is a fresh month, with an average temperature ranging between min 35.2°F (1.8°C) and max 50.5°F (10.3°C). Littleton sees an increase in the average high-temperature with the arrival of March, moving from February's wintry 37.4°F (3°C) to a fresh 50.5°F (10.3°C). Weather in March »
Weather in April
April is a comfortable spring month in Littleton, Illinois, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 62.2°F (16.8°C). April marks a rise in the average high-temperature, moving from March's fresh 50.5°F (10.3°C) to a comfortable 62.2°F (16.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Littleton, Illinois, with an average temperature ranging between min 55.4°F (13°C) and max 72.1°F (22.3°C). Littleton in May sees a temperature change, with average high-temperatures moving from a refreshing 62.2°F (16.8°C) in April to an agreeable 72.1°F (22.3°C). Weather in May »
Weather in June
June, the first month of the summer in Littleton, is a moderately hot month, with an average temperature fluctuating between 64°F (17.8°C) and 80.8°F (27.1°C). Littleton in June experiences a slight uptick in the average high-temperature, adjusting from May's pleasant 72.1°F (22.3°C) to a warm 80.8°F (27.1°C). Weather in June »
Weather in July
July, like June, in Littleton, Illinois, is a moderately hot summer month, with an average temperature ranging between max 83.1°F (28.4°C) and min 66.4°F (19.1°C). July, with its high-temperature average of 83.1°F (28.4°C) and a low-temperature average of 66.4°F (19.1°C), is the warmest month. July's mean heat index is estimated at a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Littleton, is also a moderately hot month, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 64.2°F (17.9°C). In August, Littleton experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 82.9°F (28.3°C), closely mirroring the climate in July. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Littleton, Illinois, with an average temperature fluctuating between 58.1°F (14.5°C) and 77.5°F (25.3°C). With the arrival of September, Littleton notices a mild change in the average high-temperature, sliding from August's 82.9°F (28.3°C) to a still moderately hot 77.5°F (25.3°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Littleton, Illinois, with an average temperature varying between 63.5°F (17.5°C) and 46.9°F (8.3°C). As September transitions to October, the average high-temperature falls from a warm 77.5°F (25.3°C) to an enjoyable 63.5°F (17.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Littleton, is also a frosty month, with an average temperature varying between 49.6°F (9.8°C) and 35.4°F (1.9°C). Littleton's transition into November involves a shift in temperature, receding from a refreshing 63.5°F (17.5°C) in October to a chilly 49.6°F (9.8°C). Weather in November »
Weather in December
December, the first month of the winter in Littleton, is still a cold month, with temperature in the range of an average high of 38.3°F (3.5°C) and an average low of 26.6°F (-3°C). A shift in Littleton's weather is observed as November turns into December, with the average high temperature reducing from a chilly 49.6°F (9.8°C) to a wintry 38.3°F (3.5°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
What is the coldest month?
The coldest period tends to be January, when average temperatures fluctuate between a high of 32.4°F (0.2°C) and a low of 20.3°F (-6.5°C).
How many days does it rain?
Throughout the year, there are 146.5 rainfall days, and 29.41" (747mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, October through December.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 8.3 days and typically aggregates up to 4.09" (104mm) of snow.
How much does it snow?
In Littleton, during the entire year, snow falls for 27.8 days and aggregates up to 11.54" (293mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4.3h of sunshine.
What are the months with the lowest UV index in Littleton?
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.
What is the wettest month?
May is the month with the most rainfall. Rain falls for 18.8 days and accumulates 4.02" (102mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 0min of daylight.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Littleton.
What is the hottest time of year?
The average temperatures reach their apex in July, averaging 83.1°F (28.4°C) at the high end and 66.4°F (19.1°C) at the low end.
What is the most humid month?
With an average relative humidity of 82%, July is the most humid month.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.3h of sunshine.
What is the least humid month?
With an average relative humidity of 71%, October is the least humid month.
What is the driest month?
The month with the least rainfall is December, when the rain falls for 7.4 days and typically collects 1.46" (37mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days in Littleton is December, with an average of 9h and 24min of daylight.
Average temperature
Littleton, IL
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (32.4°F).
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure
Littleton, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"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:
29.96"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:
30.12"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
Littleton, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.2mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity
Littleton, IL
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Littleton, IL
- Average rainfall in January:
1.5" - Average rainfall in February:
1.61" - Average rainfall in March:
2.4" - Average rainfall in April:
3.39" - Average rainfall in May:
4.02" - Average rainfall in June:
3.23"
- Average rainfall in July:
2.36" - Average rainfall in August:
2.24" - Average rainfall in September:
2.83" - Average rainfall in October:
2.56" - Average rainfall in November:
1.81" - Average rainfall in December:
1.46"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is December (1.46").
Average rainfall days
Littleton, IL
- Average rainfall days in January:
6 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
17.1 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
7.4 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (6 days).
Average snowfall
Littleton, IL
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Littleton, IL
- Average snowfall days in January:
8.3 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
3.7 days - Average snowfall days in April:
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:
0.1 days - Average snowfall days in November:
1.9 days - Average snowfall days in December:
5.5 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Littleton, 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 2min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 3min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Littleton, IL
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
15.2 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
9.6 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
16 days - Average sunshine days in October:
17.3 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
18.7 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index
Littleton, 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
Littleton, IL
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility
Littleton, 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).
Littleton, Illinois, USA
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