December weather forecastCedar Hill, MO
December
Weather in December
The first month of the winter, December, is still a chilly month in Cedar Hill, Missouri, with an average temperature varying between 43.3°F (6.3°C) and 30.4°F (-0.9°C).Temperature
In Cedar Hill, the beginning of December is marked by a lowered average high-temperature, shifting from November's cool 53.8°F (12.1°C) to a frosty 43.3°F (6.3°C). The temperature lowers to an average of 30.4°F (-0.9°C) during December nights.Humidity
The average relative humidity in December is 76%.Rainfall
In Cedar Hill, in December, it is raining for 7.6 days, with typically 2.05" (52mm) of accumulated precipitation. In Cedar Hill, during the entire year, the rain falls for 142.9 days and collects up to 28.5" (724mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Cedar Hill, in December, during 4.6 snowfall days, 1.93" (49mm) of snow is typically accumulated. Throughout the year, there are 22.5 snowfall days, and 8.15" (207mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:52 pm CST.
Sunshine
In Cedar Hill, the average sunshine in December is 5h.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 reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cedar Hill, MO
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 30.4°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Cedar Hill, 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
Cedar Hill, MO
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Cedar Hill, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Cedar Hill, MO
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in December
Cedar Hill, MO
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Cedar Hill, MO
- Average snowfall in December: 1.93"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Cedar Hill, MO
- Average snowfall days in December: 4.6 days
The month with the highest number of snowfall days is January (7.1 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
Cedar Hill, MO
- Average daylight in December: 9h and 30min
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 month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Cedar Hill, MO
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in December
Cedar Hill, MO
- 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
Cedar Hill, MO
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in December
Cedar Hill, 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).
