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
December brings a decrease in the average high-temperature, shifting from a refreshing 60.4°F (15.8°C) in November to a fresh 50.2°F (10.1°C). Nighttime temperatures in December average to a wintry 35.6°F (2°C).Humidity
In Lewisville, the average relative humidity in December is 72%.Rainfall
In December, the rain falls for 6.8 days. Throughout December, 0.83" (21mm) of precipitation is accumulated. In Lewisville, during the entire year, the rain falls for 102.8 days and collects up to 11.3" (287mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. December is the month with the most snowfall. Snow falls for 0.5 days and accumulates 0.28" (7mm) 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 7:11 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:19 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.5h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
How much does it snow in December?
What is the month with the shortest days in Lewisville?
What is the average length of the day in December in Lewisville?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Lewisville have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Lewisville, OK
- Average high temperature in December: 50.2°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (48.2°F).
- Average low temperature in December: 35.6°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in December
Lewisville, OK
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Lewisville, OK
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Lewisville, OK
- Average humidity in December: 72%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (68%).
Average rainfall in December
Lewisville, OK
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January, February and November (0.67").
Average rainfall days in December
Lewisville, OK
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is July (11.6 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Lewisville, OK
- Average snowfall in December: 0.28"
The month with the highest snowfall is December (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Lewisville, OK
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (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
Lewisville, 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: 5h and 3min
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 30min).
Average sunshine days in December
Lewisville, OK
- Average sunshine days in December: 22 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is July (16.6 days).
Average UV index in December
Lewisville, OK
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Lewisville, OK
- Average cloud cover in December: 38
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Lewisville, 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).
Lewisville, Oklahoma, USA
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