December weather forecastCoppell, TX
December
Weather in December
December, the first month of the winter in Coppell, is still a refreshing month, with an average temperature fluctuating between 55.4°F (13°C) and 41.7°F (5.4°C).Temperature
The onset of December introduces a moderate change in Coppell's weather, with average high-temperatures falling from November's enjoyable 64.6°F (18.1°C) to a mild 55.4°F (13°C). December nights in Coppell, Texas, are marked by an average temperature drop to a cold 41.7°F (5.4°C).Humidity
The average relative humidity in December in Coppell is 67%.Rainfall
In Coppell, in December, during 9.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, in Coppell, Texas, there are 138.8 rainfall days, and 30.79" (782mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In December, in Coppell, it is snowing for 0.5 days. Throughout December, 0.12" (3mm) of snow is accumulated. In Coppell, during the entire year, snow falls for 2.5 days and aggregates up to 1.46" (37mm) of snow.Daylight
December has the shortest days of the year in Coppell, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 5:21 pm. On the last day of December, in Coppell, Texas, sunrise is at 7:30 am and sunset at 5:32 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 3, are months with the lowest UV index in Coppell, Texas. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 3 in December leads to these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. 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. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Coppell, TX
- Average high temperature in December: 55.4°F
The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in December: 41.7°F
The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in December
Coppell, TX
- 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 (29.9"Hg).
Average wind speed in December
Coppell, TX
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in December
Coppell, TX
- Average humidity in December: 67%
The month with the highest relative humidity is May (70%).
The month with the lowest relative humidity is August (53%).
Average rainfall in December
Coppell, TX
- Average rainfall in December: 1.93"
The wettest months (with the highest rainfall) are May and October (3.94").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in December
Coppell, TX
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
Coppell, TX
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Coppell, TX
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1 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
Coppell, TX
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Coppell, TX
- Average sunshine days in December: 20 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is May (14 days).
Average UV index in December
Coppell, TX
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Coppell, TX
- Average cloud cover in December: 37
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Coppell, TX
- 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).
