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
December comes with a drop in the average high-temperature, falling from November's frosty 45.3°F (7.4°C) to an icy 32.9°F (0.5°C). Creston reports an average low-temperature of 22.8°F (-5.1°C) during the nights of December.Humidity
In December, the average relative humidity is 83%.Rainfall
In December, the rain falls for 6.2 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. In Creston, during the entire year, the rain falls for 124.5 days and collects up to 14.49" (368mm) of precipitation.Snowfall
Months with snowfall in Creston are January through April, October through December. In Creston, in December, during 7.7 snowfall days, 0.87" (22mm) of snow is typically accumulated. Throughout the year, in Creston, there are 37.1 snowfall days, and 6.14" (156mm) of snow is accumulated.Daylight
The month with the shortest days in Creston, Illinois, is December, with an average of 9h and 12min of daylight.On the first day of December in Creston, Illinois, sunrise is at 7:04 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:34 pm CST.
Sunshine
In Creston, the average sunshine in December is 3.9h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 1 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold is it in Creston in December?
What is the average humidity in December in Creston?
How much does it rain in Creston in December?
How many days does it snow in December in Creston?
What is the month with the shortest days in Creston?
What is the average length of the day in December in Creston?
What time are sunrise and sunset in December in Creston?
How long on average sun shines in December in Creston?
What are the months with the lowest UV index in Creston?
What is the UV index reading in December in Creston?
Average temperature in December
Creston, IL
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in December
Creston, IL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Creston, IL
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Creston, IL
- Average humidity in December: 83%
The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Creston, IL
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in December
Creston, IL
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Creston, IL
- Average snowfall in December: 0.87"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Creston, IL
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is January (10.3 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
Creston, IL
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Creston, IL
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Creston, IL
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Creston, IL
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in December
Creston, IL
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Creston, Illinois, USA
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