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
The onset of December comes with a shift in the average high-temperature, falling from a frosty 49.5°F (9.7°C) in November to a cold 37.9°F (3.3°C). During the nights in December, an average low-temperature of 26.4°F (-3.1°C) is observed.Humidity
In December, the average relative humidity is 79%.Rainfall
December is the month with the least rainfall. Rain falls for 7.5 days and accumulates 1.38" (35mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Topeka, Illinois, during December, snow falls for 5.4 days and regularly aggregates up to 1.42" (36mm) of snow. In Topeka, during the entire year, snow falls for 28.4 days and aggregates up to 10.31" (262mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:03 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:43 pm CST.
Sunshine
In Topeka, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Topeka?
What is the average humidity in December?
What is the driest month?
How much 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 Topeka have in December?
What time are sunrise and 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 in Topeka?
Average temperature in December
Topeka, IL
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Topeka, IL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Topeka, IL
- Average wind speed in December: 9.6mph
The windiest months (with the highest average wind speed) are January, February and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
Topeka, IL
- Average humidity in December: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Topeka, IL
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is December (1.38").
Average rainfall days in December
Topeka, IL
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
Topeka, IL
- Average snowfall in December: 1.42"
The month with the highest snowfall is January (3.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Topeka, IL
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is January (9.2 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
Topeka, 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 June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Topeka, IL
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in December
Topeka, 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
Topeka, IL
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in December
Topeka, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Topeka, Illinois, USA
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