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's arrival in Wentzville coincides with a drop in the average high-temperature, decreasing from November's fresh 53.1°F (11.7°C) to an icy 41.7°F (5.4°C). Wentzville's average low-temperature in December is measured at a subzero cold 29.8°F (-1.2°C).Humidity
In Wentzville, Missouri, the average relative humidity in December is 76%.Rainfall
In Wentzville, Missouri, in December, during 8.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Wentzville, during the entire year, the rain falls for 152.1 days and collects up to 32.01" (813mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Wentzville. In Wentzville, Missouri, during December, snow falls for 4 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, in Wentzville, there are 21.4 snowfall days, and 8.62" (219mm) of snow is accumulated.Daylight
The month with the shortest days in Wentzville is December, with an average of 9h and 30min of daylight.On the first day of December in Wentzville, sunrise is at 7:03 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:51 pm CST.
Sunshine
In December, the average sunshine is 5h.UV index
The months with the lowest UV index in Wentzville, Missouri, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
How cold is it in Wentzville in December?
What is the average humidity in December in Wentzville?
How much does it rain in Wentzville in December?
How much does it snow in Wentzville in December?
What is the month with the shortest days in Wentzville?
How many hours of daylight does Wentzville have in December?
When is the sunrise / sunset in December in Wentzville?
How many hours of sunshine does Wentzville have in December?
What are the months with the lowest UV index in Wentzville?
How high is the UV index in December in Wentzville?
Average temperature in December
Wentzville, MO
- Average high temperature in December: 41.7°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Wentzville, MO
- 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 in December
Wentzville, MO
- Average wind speed in December: 8.5mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Wentzville, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Wentzville, MO
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in December
Wentzville, MO
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Wentzville, MO
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Wentzville, MO
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is January (7.3 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
Wentzville, MO
- 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 December: 5h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Wentzville, MO
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Wentzville, MO
- Average UV index in December: 2
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 in December
Wentzville, MO
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Wentzville, MO
- 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).
Wentzville, Missouri, USA
Weather forecast for your location
2. Allow the app to use your location
