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
A decrease in the average high-temperature is observed during December, shifting from a fresh 54.3°F (12.4°C) in November to a frosty 43.7°F (6.5°C). Throughout the month of December, Richland observes an average nighttime 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
January through March, November and December are months with snowfall in Richland. In Richland, Missouri, during December, snow falls for 2.9 days and regularly aggregates up to 0.55" (14mm) of snow. Throughout the year, in Richland, Missouri, there are 15.6 snowfall days, and 2.83" (72mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Richland.On the first day of the month, sunrise is at 7:07 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:25 am and sunset at 5:00 pm CST.
Sunshine
In Richland, 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 in Richland. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
Is it cold in Richland during December?
What is the average humidity in December in Richland?
How much does it rain in Richland in December?
How many days does it snow in December in Richland?
What is the month with the shortest days in Richland?
How many hours of daylight does Richland have in December?
When is the sunrise / sunset in December in Richland?
How long on average sun shines in December in Richland?
What are the months with the lowest UV index in Richland?
What is the UV index intensity in December in Richland?
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 4min
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 1min
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).
Richland, Missouri, USA
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