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
As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from an enjoyable 63.9°F (17.7°C) to a cool 54.9°F (12.7°C). During December nights, Wylie records an average temperature of 40.8°F (4.9°C).Humidity
The average relative humidity in December is 71%.Rainfall
In Wylie, in December, it is raining for 6.5 days, with typically 1.02" (26mm) of accumulated precipitation. In Wylie, during the entire year, the rain falls for 124.3 days and collects up to 20.47" (520mm) of precipitation.Snowfall
Months with snowfall are February, November and December. December is the last month it regularly snows. During 0.3 snowfall days, in December, Wylie aggregates 0.04" (1mm) of snow. In Wylie, during the entire year, snow falls for 1.7 days and aggregates up to 0.24" (6mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 5:19 pm. On the last day of December, sunrise is at 7:28 am and sunset at 5:30 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index in Wylie are January, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. 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. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December?
What is the last month it snows?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Wylie, TX
- Average high temperature in December: 54.9°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (54°F).
- Average low temperature in December: 40.8°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in December
Wylie, 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 (29.91"Hg).
Average wind speed in December
Wylie, TX
- Average wind speed in December: 8.7mph
The windiest months (with the highest average wind speed) are February, March and April (9.9mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in December
Wylie, TX
- Average humidity in December: 71%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (59%).
Average rainfall in December
Wylie, TX
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in December
Wylie, TX
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is September (14.1 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Wylie, TX
- Average snowfall in December: 0.04"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are January, March, April, May, June, July, August, September and October (0").
Average snowfall days in December
Wylie, TX
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Wylie, 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 2min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Wylie, TX
- Average sunshine days in December: 22.9 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is September (14.8 days).
Average UV index in December
Wylie, TX
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in December
Wylie, TX
- Average cloud cover in December: 40
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Wylie, 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).
Wylie, Texas, USA
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