December weather forecastBerkeley, MO
December
Weather in December
The first month of the winter, December, is still a cold month in Berkeley, Missouri, with temperature in the range of an average high of 42.1°F (5.6°C) and an average low of 30°F (-1.1°C).Temperature
Berkeley observes a minor decrease in the average high-temperature with the arrival of December, falling from November's cool 53.2°F (11.8°C) to a wintry 42.1°F (5.6°C). Berkeley's nights in December cool down to an average low-temperature of 30°F (-1.1°C).Humidity
The average relative humidity in December is 76%.Rainfall
In Berkeley, Missouri, during December, the rain falls for 7.3 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Berkeley, during the entire year, the rain falls for 141.9 days and collects up to 27.68" (703mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Berkeley. In December, it is snowing for 4.4 days. Throughout December, 1.81" (46mm) of snow is accumulated. Throughout the year, there are 21.6 snowfall days, and 6.73" (171mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:01 am and sunset at 4:40 pm. On the last day of December, in Berkeley, sunrise is at 7:19 am and sunset at 4:49 pm CST.
Sunshine
In December, the average sunshine is 4.9h.UV index
The months with the lowest UV index in Berkeley are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Enhance your sun protection with tightly woven, yet airy clothing. 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
Average temperature in December
Berkeley, MO
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Berkeley, 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
Berkeley, MO
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in December
Berkeley, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Berkeley, MO
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in December
Berkeley, MO
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are February and December (7.3 days).
Average snowfall in December
Berkeley, MO
- Average snowfall in December: 1.81"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Berkeley, MO
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is January (6.8 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
Berkeley, 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: 4h and 54min
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 36min).
Average sunshine days in December
Berkeley, MO
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in December
Berkeley, 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 and December (UV index 2).
Average cloud cover in December
Berkeley, MO
- Average cloud cover in December: 48
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
Berkeley, 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).
