Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
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). Littleton anticipates an average minimum temperature of 26.6°F (-3°C) in the month of December.Humidity
The average relative humidity in December is 78%.Rainfall
The month with the least rainfall is December, when the rain falls for 7.4 days and typically collects 1.46" (37mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Littleton, in December, during 5.5 snowfall days, 1.42" (36mm) of snow is typically accumulated. In Littleton, during the entire year, snow falls for 27.8 days and aggregates up to 11.54" (293mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December in Littleton, sunrise is at 7:06 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:46 pm CST.
Sunshine
The average sunshine in December is 4.7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Littleton. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
What is the driest month?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Littleton have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Littleton, IL
- Average high temperature in December: 38.3°F
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).
- Average low temperature in December: 26.6°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 in December
Littleton, IL
- 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 in December
Littleton, IL
- 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 in December
Littleton, IL
- Average humidity in December: 78%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Littleton, IL
- 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 in December
Littleton, IL
- 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 in December
Littleton, IL
- Average snowfall in December: 1.42"
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 in December
Littleton, IL
- 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 in December /
Average sunshine in December
Littleton, IL
- 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 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 in December
Littleton, IL
- 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 in December
Littleton, IL
- Average UV index in December: 2
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 in December
Littleton, IL
- Average cloud cover in December: 50
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 in December
Littleton, IL
- Average visibility in December: 6mi
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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