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 transition into December involves a decrease in the average high-temperature, falling from a mild 60.6°F (15.9°C) in November to a fresh 50.5°F (10.3°C). In Sulphur, December's nights observe an average temperature dip to a cold 36.3°F (2.4°C).Humidity
In December, the average relative humidity is 70%.Rainfall
In December, the rain falls for 7.4 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. Throughout the year, in Sulphur, there are 129 rainfall days, and 27.91" (709mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 1.1 days. Throughout December, 0.51" (13mm) of snow is accumulated. Throughout the year, in Sulphur, there are 5.3 snowfall days, and 2.6" (66mm) of snow is accumulated.Daylight
The month with the shortest days in Sulphur is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 7:16 am and sunset at 5:17 pm. On the last day of December, sunrise is at 7:34 am and sunset at 5:27 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.5h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Sulphur?
How many hours of daylight does Sulphur have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sulphur, OK
- Average high temperature in December: 50.5°F
The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (50.2°F).
- Average low temperature in December: 36.3°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in December
Sulphur, 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
Sulphur, OK
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in December
Sulphur, OK
- Average humidity in December: 70%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (61%).
Average rainfall in December
Sulphur, OK
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
Sulphur, OK
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Sulphur, OK
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Sulphur, OK
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (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
Sulphur, OK
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Sulphur, OK
- Average sunshine days in December: 21 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in December
Sulphur, OK
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Sulphur, 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
Sulphur, 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).
Sulphur, Oklahoma, USA
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