December weather forecastMounds, OK
December
Weather in December
December, the first month of the winter in Mounds, is still a chilly month, with an average temperature varying between 34.5°F (1.4°C) and 48.7°F (9.3°C).Temperature
Mounds's average high-temperature decreases in December, falling from a refreshing 59.5°F (15.3°C) in November to a frosty 48.7°F (9.3°C). In December, the average low-temperature is a cold 34.5°F (1.4°C).Humidity
In December, the average relative humidity is 69%.Rainfall
In Mounds, in December, during 6.4 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Mounds, during the entire year, the rain falls for 129 days and collects up to 29.41" (747mm) of precipitation.Snowfall
Months with snowfall are January, February, November and December. In December, in Mounds, it is snowing for 0.7 days. Throughout December, 0.2" (5mm) of snow is accumulated. Throughout the year, there are 5.2 snowfall days, and 2.52" (64mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:16 am and sunset at 5:10 pm. On the last day of December, sunrise is at 7:34 am and sunset at 5:20 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.6h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mounds, OK
- Average high temperature in December: 48.7°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (46.6°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in December
Mounds, OK
- 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 (29.89"Hg).
Average wind speed in December
Mounds, OK
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is March (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in December
Mounds, OK
- Average humidity in December: 69%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, August and October (67%).
Average rainfall in December
Mounds, OK
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in December
Mounds, OK
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Mounds, OK
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in December
Mounds, OK
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Mounds, OK
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Mounds, OK
- Average sunshine days in December: 22.1 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is May (14.2 days).
Average UV index in December
Mounds, OK
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Mounds, OK
- Average cloud cover in December: 37
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Mounds, OK
- 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).
