December weather forecast
Norman, OK

The colorful blossom of tulips, redbuds, and plums in a garden on the campus of the University of Oklahoma, Norman
The colorful blossom of tulips, redbuds, and plums in a garden on the campus of the University of Oklahoma, Norman

Weather in December

December, the first month of the winter, in Norman, is also a frosty month, with average temperature ranging between min 34.3°F (1.3°C) and max 49.5°F (9.7°C).

Temperature

In December, the average high-temperature drops, from a mild 59.9°F (15.5°C) in November, to a chilly 49.5°F (9.7°C). In December, in Norman, the average low-temperature is 34.3°F (1.3°C).

Humidity

The average relative humidity in December is 67%.

Rainfall

In Norman, Oklahoma,, during 5.7 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, in Norman, 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, Oklahoma,, snow falls for 1.5 days, with typically accumulated 0.79" (20mm) of snow. Throughout the year, in Norman, there are 6.9 snowfall days, and 3.19" (81mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9.8h of daylight.

Sunshine

With an average of 6h of sunshine, December has the least sunshine of the year in Norman.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index in Norman, Oklahoma. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the average humidity in December in Norman?

The average relative humidity in December in Norman is 67%.

How much does it rain in Norman in December?

In Norman, during December, the rain falls for 5.7 days and regularly aggregates up to 1.1" (28mm) of precipitation.

How much does it snow in Norman in December?

In Norman, in December, snow falls for 1.5 days, with typically accumulated 0.79" (20mm) of snow.

What is the month with the shortest days in Norman?

The month with the shortest days is December, with an average of 9.8h of daylight.

What is the average length of the day in December in Norman?

In Norman, Oklahoma, the average length of the day in December is 9.8h.

What is the month with the least sunshine in Norman?

With an average of 6h of sunshine, December has the least sunshine of the year in Norman.

How long on average sun shines in December in Norman?

The average sunshine in December in Norman is 6h.

What is the month with the lowest UV index in Norman?

The month with the lowest UV index is December, with an average maximum UV index of 2.

How high is the UV index in December in Norman?

In Norman, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to the Sun's UV rays.

Average temperature in December
Norman, OK

Average temperature in December - Norman, OK
  • Average high temperature in December: 9.7°C

The warmest month (with the highest average high temperature) is July (34.2°C).
The month with the lowest average high temperature is January (9.5°C).

  • Average low temperature in December: 1.3°C

The month with the highest average low temperature is July (22.7°C).
The coldest month (with the lowest average low temperature) is January (0.2°C).

[Resources]

Average pressure in December
Norman, OK

Average pressure in December - Norman, OK
  • Average pressure in December: 1020.2mbar

The month with the highest atmospheric pressure is January (1021.3mbar).
The month with the lowest atmospheric pressure is June (1011.7mbar).

[Resources]

Average wind speed in December
Norman, OK

Average wind speed in December - Norman, OK
  • Average wind speed in December: 16.4km/h

The windiest month (with the highest average wind speed) is April (19.3km/h).
The calmest month (with the lowest average wind speed) is August (13.3km/h).

[Resources]

Average humidity in December
Norman, OK

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%).

[Resources]

Average rainfall in December
Norman, OK

Average rainfall in December - Norman, OK
  • Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is May (98mm).
The driest months (with the least rainfall) are February and November (27mm).

[Resources]

Average rainfall days in December
Norman, OK

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).

[Resources]

Average snowfall in December
Norman, OK

Average snowfall in December - Norman, OK
  • Average snowfall in December: 20mm

The month with the highest snowfall is February (33mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

[Resources]

Average snowfall days in December
Norman, OK

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).

[Resources]

Average daylight in December /
Average sunshine in December
Norman, OK

Average daylight in December / Average sunshine in December - Norman, OK
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 6h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6h).

[Resources]

Average sunshine days in December
Norman, OK

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).

[Resources]

Average UV index in December
Norman, OK

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).

[Resources]

Average cloud cover in December
Norman, OK

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).

[Resources]

Average visibility in December
Norman, OK

Average visibility in December - Norman, OK
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, June, July, August, October, November and December (10km).
The months with the lowest visibility are April, May and September (9km).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location