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
The onset of December brings a small change in high-temperatures, falling from a cool 51.6°F (10.9°C) in November to a cold 40.5°F (4.7°C). The average nighttime temperature lowers to a freezing cold 28.2°F (-2.1°C) throughout December.Humidity
In Ashburn, the average relative humidity in December is 77%.Rainfall
In Ashburn, during December, the rain falls for 7.6 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 142.7 rainfall days, and 27.64" (702mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Ashburn, in December, snow falls for 4.5 days, with typically accumulated 1.38" (35mm) of snow. Throughout the year, in Ashburn, there are 26.1 snowfall days, and 9.45" (240mm) of snow is accumulated.Daylight
December has the shortest days of the year in Ashburn, with an average of 9h and 24min of daylight.On the first day of December in Ashburn, sunrise is at 7:06 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:51 pm CST.
Sunshine
In December, the average sunshine in Ashburn is 4.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ashburn. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Ashburn in December?
What is the average humidity in December in Ashburn?
How much does it rain in Ashburn in December?
How many days does it snow in December in Ashburn?
What is the month with the shortest days in Ashburn?
How many hours of daylight does Ashburn have in December?
When are sunrise and sunset in December in Ashburn?
How many hours of sunshine does Ashburn have in December?
What are the months with the lowest UV index in Ashburn?
What is the UV index reading in December in Ashburn?
Average temperature in December
Ashburn, MO
- Average high temperature in December: 40.5°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Ashburn, MO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Ashburn, MO
- Average wind speed in December: 9.3mph
The windiest months (with the highest average wind speed) are January and February (9.7mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in December
Ashburn, MO
- Average humidity in December: 77%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Ashburn, MO
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in December
Ashburn, MO
- Average rainfall days in December: 7.6 days
The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in December
Ashburn, MO
- Average snowfall in December: 1.38"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Ashburn, MO
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is January (8.5 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
Ashburn, MO
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in December
Ashburn, MO
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Ashburn, 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
Ashburn, MO
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility in December
Ashburn, 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).
Ashburn, Missouri, USA
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