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
Delaware experiences a temperature shift at the start of December, with average high-temperatures adjusting from a refreshing 57.6°F (14.2°C) in November to a chilly 46.8°F (8.2°C). During December, the average low-temperature is an icy 32.5°F (0.3°C).Humidity
In Delaware, the average relative humidity in December is 71%.Rainfall
In December, the rain falls for 6.5 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 135.3 rainfall days, and 30.31" (770mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Delaware, in December, snow falls for 1.3 days, with typically accumulated 0.43" (11mm) of snow. Throughout the year, there are 7.8 snowfall days, and 3.46" (88mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 5:06 pm. On the last day of December, in Delaware, sunrise is at 7:35 am and sunset at 5:16 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.6h of sunshine.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Delaware. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Delaware?
What is the average humidity in December in Delaware?
How many days does it rain in December?
How many days does it snow in December in Delaware?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Delaware, OK
- Average high temperature in December: 46.8°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in December: 32.5°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 (29.3°F).
Average pressure in December
Delaware, 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 (29.9"Hg).
Average wind speed in December
Delaware, OK
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Delaware, OK
- Average humidity in December: 71%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Delaware, OK
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is May (5.31").
The driest month (with the least rainfall) is November (1.18").
Average rainfall days in December
Delaware, OK
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in December
Delaware, OK
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Delaware, OK
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Delaware, OK
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Delaware, OK
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is April (13.6 days).
Average UV index in December
Delaware, OK
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Delaware, OK
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Delaware, 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).
Delaware, Oklahoma, USA
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