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 comes with a shift in the average high-temperature, falling from a mild 60.4°F (15.8°C) in November to a fresh 50.9°F (10.5°C). The average nighttime temperature lowers to an icy 35.2°F (1.8°C) throughout December.Humidity
The average relative humidity in December is 75%.Rainfall
In Heavener, in December, during 9.2 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Heavener, during the entire year, the rain falls for 146.2 days and collects up to 33.62" (854mm) of precipitation.Snowfall
Months with snowfall in Heavener are January through March and December. December is the first month it typically snows in Heavener. Throughout December, in the average 0.9 snowfall days, it receives 0.47" (12mm) of snow. In Heavener, during the entire year, snow falls for 6 days and aggregates up to 2.76" (70mm) of snow.Daylight
December has the shortest days of the year in Heavener, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 5:07 pm. On the last day of December, sunrise is at 7:25 am and sunset at 5:17 pm CST.
Sunshine
January and December, with an average of 5.4h of sunshine, are months with the least sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What is the average December temperature in Heavener?
What is the average humidity in December in Heavener?
How much does it rain in Heavener in December?
When does it start snowing in Heavener?
What is the month with the shortest days in Heavener?
What is the average length of the day in December in Heavener?
When are sunrise and sunset in December in Heavener?
What is the month with the least sunshine in Heavener?
How long on average sun shines in December in Heavener?
What is the month with the lowest UV index in Heavener?
What is the UV index reading in December in Heavener?
Average temperature in December
Heavener, OK
- Average high temperature in December: 50.9°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in December
Heavener, OK
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Heavener, OK
- Average wind speed in December: 6.1mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Heavener, OK
- Average humidity in December: 75%
The months with the highest relative humidity are February, March and May (76%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Heavener, OK
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in December
Heavener, OK
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is August (14.9 days).
The month with the least rainy days is November (9 days).
Average snowfall in December
Heavener, OK
- Average snowfall in December: 0.47"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Heavener, OK
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (2.1 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
Heavener, OK
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in December
Heavener, OK
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in December
Heavener, OK
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Heavener, OK
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are June and August (Cloud cover 25).
Average visibility in December
Heavener, 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).
Heavener, Oklahoma, USA
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