December weather forecastCalverton Park, MO
December
Weather in December
The first month of the winter, December, is also a wintry month in Calverton Park, Missouri, with an average temperature ranging between min 30°F (-1.1°C) and max 41.9°F (5.5°C).Temperature
Calverton Park in December demonstrates a small temperature transition, adjusting from an average high of a cool 52.9°F (11.6°C) in November to an icy 41.9°F (5.5°C). The nighttime temperature dips to a freezing cold 30°F (-1.1°C) on average during December.Humidity
In December, the average relative humidity is 76%.Rainfall
In Calverton Park, in December, it is raining for 8.2 days, with typically 2.05" (52mm) of accumulated precipitation. In Calverton Park, during the entire year, the rain falls for 149 days and collects up to 31.61" (803mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Calverton Park, in December, during 3.7 snowfall days, 2.01" (51mm) of snow is typically accumulated. Throughout the year, there are 19.5 snowfall days, and 8.82" (224mm) 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 4:39 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:49 pm CST.
Sunshine
In Calverton Park, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index in Calverton Park are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Calverton Park, MO
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (86.5°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 (68.7°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in December
Calverton Park, 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
Calverton Park, MO
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in December
Calverton Park, 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 (70%).
Average rainfall in December
Calverton Park, MO
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in December
Calverton Park, MO
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Calverton Park, MO
- Average snowfall in December: 2.01"
The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Calverton Park, MO
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (6.7 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
Calverton Park, 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 months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Calverton Park, MO
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Calverton Park, 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
Calverton Park, 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
Calverton Park, 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).
