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 tends to be the coldest month, with temperatures averaging a daily high of 53.2°F (11.8°C) and a low of 36.7°F (2.6°C).Humidity
In December, the average relative humidity is 63%.Rainfall
In Dean, during December, the rain falls for 5.2 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Dean, during the entire year, the rain falls for 104.1 days and collects up to 21.22" (539mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 0.9 days. Throughout December, 0.43" (11mm) of snow is accumulated. Throughout the year, there are 4.4 snowfall days, and 2.64" (67mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 7:21 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:34 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 6.1h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the temperature in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Dean have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine in Dean?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Dean, TX
- Average high temperature in December: 53.2°F
The warmest month (with the highest average high temperature) is August (97.3°F).
The month with the lowest average high temperature is December (53.2°F).
- Average low temperature in December: 36.7°F
The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in December
Dean, 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 (29.87"Hg).
Average wind speed in December
Dean, TX
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is September (8.1mph).
Average humidity in December
Dean, TX
- Average humidity in December: 63%
The month with the highest relative humidity is May (67%).
The month with the lowest relative humidity is August (50%).
Average rainfall in December
Dean, TX
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in December
Dean, TX
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Dean, TX
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Dean, TX
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Dean, TX
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in December
Dean, TX
- Average sunshine days in December: 23.6 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is May (15.8 days).
Average UV index in December
Dean, TX
- Average UV index in December: 2
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Dean, TX
- Average cloud cover in December: 30
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Dean, 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).
Dean, Texas, USA
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