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
With December's arrival, Heyburn's weather changes as the average high-temperature falls from a moderate 59.2°F (15.1°C) in November to a chilly 48.7°F (9.3°C). Heyburn experiences an average low-temperature of 34.5°F (1.4°C) in the month of December.Humidity
In Heyburn, the average relative humidity in December is 69%.Rainfall
In Heyburn, in December, it is raining for 6.4 days, with typically 1.34" (34mm) of accumulated precipitation. In Heyburn, during the entire year, the rain falls for 129.3 days and collects up to 29.13" (740mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Heyburn, in December, during 1.1 snowfall days, 0.35" (9mm) of snow is typically accumulated. In Heyburn, during the entire year, snow falls for 5.8 days and aggregates up to 3.46" (88mm) of snow.Daylight
December has the shortest days of the year in Heyburn, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:21 pm CST.
Sunshine
With an average of 5.7h of sunshine, December has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Heyburn. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average December temperature in Heyburn?
What is the average humidity in December in Heyburn?
How many days does it rain in December in Heyburn?
How much does it snow in Heyburn in December?
What is the month with the shortest days in Heyburn?
What is the average length of the day in December in Heyburn?
When are sunrise and sunset in December in Heyburn?
What is the month with the least sunshine in Heyburn?
How long on average sun shines in December in Heyburn?
What is the month with the lowest UV index in Heyburn?
How high is the UV index in December in Heyburn?
Average temperature in December
Heyburn, OK
- Average high temperature in December: 48.7°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in December
Heyburn, 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
Heyburn, OK
- Average wind speed in December: 9.3mph
The windiest months (with the highest average wind speed) are March and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in December
Heyburn, 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 and August (66%).
Average rainfall in December
Heyburn, OK
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (4.92").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in December
Heyburn, OK
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in December
Heyburn, OK
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Heyburn, OK
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (2.4 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
Heyburn, OK
- Average daylight in December: 9h and 5min
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 4min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Heyburn, OK
- Average sunshine days in December: 22.3 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in December
Heyburn, 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
Heyburn, OK
- Average cloud cover in December: 35
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Heyburn, 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).
Heyburn, Oklahoma, USA
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