December weather forecastRichland, MO
December
Weather in December
The first month of the winter, December, is also a frosty month in Richland, Missouri, with an average temperature varying between 43.7°F (6.5°C) and 29.5°F (-1.4°C).Temperature
The onset of December coincides with a reduction in the average high-temperature, falling from a cool 54.3°F (12.4°C) in November to a frosty 43.7°F (6.5°C). Throughout December, Richland anticipates an average low-temperature of 29.5°F (-1.4°C).Humidity
In Richland, the average relative humidity in December is 76%.Rainfall
In December, the rain falls for 4.8 days. Throughout December, 0.55" (14mm) of precipitation is accumulated. In Richland, during the entire year, the rain falls for 113.6 days and collects up to 12.72" (323mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Richland, in December, snow falls for 2.9 days, with typically accumulated 0.55" (14mm) of snow. In Richland, during the entire year, snow falls for 15.6 days and aggregates up to 2.83" (72mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:07 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:00 pm CST.
Sunshine
The average sunshine in December is 5.2h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Richland, MO
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Richland, 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 (29.93"Hg).
Average wind speed in December
Richland, MO
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in December
Richland, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are July, August, September, October and November (73%).
Average rainfall in December
Richland, MO
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are January and February (0.51").
Average rainfall days in December
Richland, MO
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is May (14.2 days).
The months with the least rainy days are January and December (4.8 days).
Average snowfall in December
Richland, MO
- Average snowfall in December: 0.55"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Richland, MO
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Richland, MO
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in December
Richland, MO
- Average sunshine days in December: 23.4 days
The month with the most sunshine days is December (23.4 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in December
Richland, 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 and December (UV index 2).
Average cloud cover in December
Richland, MO
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Richland, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
