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
With December's onset, the average high-temperature in Lewisville recedes from November's comfortable 64.4°F (18°C) to a cool 55.2°F (12.9°C). Lewisville's temperature tends to fall to an average low of 41.4°F (5.2°C) during the nights of December.Humidity
The average relative humidity in December is 68%.Rainfall
In December, the rain falls for 8.5 days. Throughout December, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 132.1 rainfall days, and 29.09" (739mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Lewisville, in December, snow falls for 0.2 days, with typically accumulated 0.04" (1mm) of snow. In Lewisville, during the entire year, snow falls for 2.3 days and aggregates up to 0.94" (24mm) of snow.Daylight
The month with the shortest days is December, 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 Lewisville, sunrise is at 7:30 am and sunset at 5:31 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.6h of sunshine.UV index
December is the month with the lowest UV index in Lewisville, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 3 during December translates into the following guidance:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. 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. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
What is the average December temperature in Lewisville?
What is the average humidity in December in Lewisville?
How much does it rain in Lewisville in December?
How many days does it snow in December in Lewisville?
What is the month with the shortest days in Lewisville?
How many hours of daylight does Lewisville have in December?
What time are sunrise and sunset in December in Lewisville?
What is the month with the least sunshine in Lewisville?
How many hours of sunshine does Lewisville have in December?
What is the month with the lowest UV index in Lewisville?
What is the UV index reading in December in Lewisville?
Average temperature in December
Lewisville, TX
- Average high temperature in December: 55.2°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in December: 41.4°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in December
Lewisville, 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
Lewisville, TX
- Average wind speed in December: 8.6mph
The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in December
Lewisville, TX
- Average humidity in December: 68%
The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (53%).
Average rainfall in December
Lewisville, TX
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is October (3.74").
The driest months (with the least rainfall) are January and February (1.57").
Average rainfall days in December
Lewisville, TX
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Lewisville, TX
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Lewisville, TX
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (1.1 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
Lewisville, 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 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Lewisville, TX
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is September (14.9 days).
Average UV index in December
Lewisville, TX
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Lewisville, 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
Lewisville, 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).
Lewisville, Texas, USA
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