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
As November shifts into December in Norman, a slight alteration in temperatures is observed, with average highs reducing from a moderate 59.9°F (15.5°C) to a chilly 49.5°F (9.7°C). During December, the average low-temperature is an icy 34.3°F (1.3°C).Humidity
In December, the average relative humidity is 67%.Rainfall
In Norman, in December, during 5.7 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 121.1 rainfall days, and 24.8" (630mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Norman. In December, it is snowing for 1.5 days. Throughout December, 0.79" (20mm) of snow is accumulated. In Norman, during the entire year, snow falls for 6.9 days and aggregates up to 3.19" (81mm) 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 7:20 am and sunset at 5:17 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:28 pm CST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in Norman in December?
What is the month with the shortest days?
How many hours of daylight does Norman have in December?
What time are sunrise and 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?
How high is the UV index in December?
Average temperature in December
Norman, OK
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in December: 34.3°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (32.4°F).
Average pressure in December
Norman, 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 (29.88"Hg).
Average wind speed in December
Norman, OK
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is April (12mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in December
Norman, OK
- Average humidity in December: 67%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (60%).
Average rainfall in December
Norman, OK
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is May (3.86").
The driest months (with the least rainfall) are February and November (1.06").
Average rainfall days in December
Norman, OK
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Norman, OK
- Average snowfall in December: 0.79"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Norman, OK
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.2 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
Norman, 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: 6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Norman, OK
- Average sunshine days in December: 23.3 days
The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in December
Norman, 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
Norman, OK
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Norman, 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).
Norman, Oklahoma, USA
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