December weather forecastDumas, TX
December
Weather in December
December, the first month of the winter in Dumas, is still a chilly month, with an average temperature ranging between max 48.6°F (9.2°C) and min 29.3°F (-1.5°C).Temperature
Dumas's coldest month, December, registers temperatures that range from a high of 48.6°F (9.2°C) to a low of 29.3°F (-1.5°C).Humidity
With an average relative humidity of 56%, December is the most humid month in Dumas.Rainfall
In Dumas, during December, the rain falls for 3.2 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Dumas, during the entire year, the rain falls for 85.5 days and collects up to 11.93" (303mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, in Dumas, it is snowing for 3.1 days. Throughout December, 1.1" (28mm) of snow is accumulated. Throughout the year, there are 14.2 snowfall days, and 5.55" (141mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 7:40 am and sunset at 5:34 pm. On the last day of December, in Dumas, sunrise is at 7:57 am and sunset at 5:44 pm CST.
Sunshine
December has the least sunshine of the year in Dumas, with an average of 6.8h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dumas, TX
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is December (48.6°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is December (29.3°F).
Average pressure in December
Dumas, TX
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Dumas, TX
- Average wind speed in December: 11.2mph
The windiest month (with the highest average wind speed) is April (13.8mph).
The calmest month (with the lowest average wind speed) is August (10.7mph).
Average humidity in December
Dumas, TX
- Average humidity in December: 56%
The month with the highest relative humidity is December (56%).
The month with the lowest relative humidity is April (42%).
Average rainfall in December
Dumas, TX
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is February (0.31").
Average rainfall days in December
Dumas, TX
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is August (13.4 days).
The months with the least rainy days are January and November (2.9 days).
Average snowfall in December
Dumas, TX
- Average snowfall in December: 1.1"
The month with the highest snowfall is January (1.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Dumas, TX
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dumas, TX
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 48min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Dumas, TX
- Average sunshine days in December: 25.3 days
The months with the most sunshine days are January and December (25.3 days).
The months with the least sunshine days are July and August (13.8 days).
Average UV index in December
Dumas, TX
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Dumas, TX
- Average cloud cover in December: 23
The month with the most cloud cover is February (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in December
Dumas, 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).





