December weather forecastMcAlester, OK
December
Weather in December
December wraps up the calendar with the onset of cold winters in McAlester. A decline in temperatures and daylight hours captures the essence of winters. Encompassing the chill of January and February, December bears the trait of the frosty quarter. Interestingly, it also invites the first snowfall of the year. For December, the winter chill accompanied with the excitement of snow make the city a fascinating spectacle for the holidays.Temperature
The commencement of December involves a temperature shift, with the average high-temperature dropping from a mild 60.6°F (15.9°C) in November to a fresh 50.4°F (10.2°C). McAlester records a steady low-temperature average of 36°F (2.2°C) during December.Humidity
In McAlester, the average relative humidity in December is 72%.Rainfall
In McAlester, in December, during 9.2 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In McAlester, during the entire year, the rain falls for 138.1 days and collects up to 30.71" (780mm) of precipitation.Snowfall
Months with snowfall in McAlester, Oklahoma, are January through April, November and December. In December, it is snowing for 0.6 days. Throughout December, 0.59" (15mm) of snow is accumulated. Throughout the year, there are 5.4 snowfall days, and 2.8" (71mm) of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:13 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:22 pm CST.
Sunshine
With an average of 5.5h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
McAlester, OK
- Average high temperature in December: 50.4°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 (48.9°F).
- Average low temperature in December: 36°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 (33.3°F).
Average pressure in December
McAlester, 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 (29.91"Hg).
Average wind speed in December
McAlester, OK
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
McAlester, OK
- Average humidity in December: 72%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
McAlester, OK
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in December
McAlester, OK
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
McAlester, OK
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
McAlester, OK
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.3 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
McAlester, OK
- Average daylight in December: 9h and 54min
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 30min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
McAlester, OK
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (14.5 days).
Average UV index in December
McAlester, 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
McAlester, OK
- Average cloud cover in December: 37
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
McAlester, 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).
