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 arrival of December corresponds with a reduction in the average high-temperature, down from November's moderate 59.9°F (15.5°C) to a chilly 49.5°F (9.7°C). The low-temperature average for Sallisaw during December stands at a cold 35.2°F (1.8°C).Humidity
In December, the average relative humidity is 74%.Rainfall
In Sallisaw, in December, during 8.8 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, in Sallisaw, there are 145.3 rainfall days, and 35.79" (909mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Sallisaw, in December, snow falls for 0.9 days, with typically accumulated 0.59" (15mm) of snow. In Sallisaw, Oklahoma, during the entire year, snow falls for 5.7 days and aggregates up to 2.8" (71mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 5:06 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:16 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.4h of sunshine.UV index
February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
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?
How many hours of daylight does Sallisaw have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Sallisaw have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sallisaw, OK
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (48°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 (31.6°F).
Average pressure in December
Sallisaw, 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 (29.92"Hg).
Average wind speed in December
Sallisaw, OK
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in December
Sallisaw, OK
- Average humidity in December: 74%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Sallisaw, OK
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is February (2.2").
Average rainfall days in December
Sallisaw, OK
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in December
Sallisaw, OK
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Sallisaw, OK
- Average snowfall days in December: 0.9 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
Sallisaw, 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 48min).
- Average sunshine in December: 5h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Sallisaw, OK
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in December
Sallisaw, 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 February and December (UV index 2).
Average cloud cover in December
Sallisaw, OK
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Sallisaw, 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).
Sallisaw, Oklahoma, USA
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