December weather forecastBlum, TX
December
Weather in December
December, the first month of the winter in Blum, is still a refreshing month, with an average temperature varying between 56.8°F (13.8°C) and 42.1°F (5.6°C).Temperature
December's arrival aligns with a minor decrease in average high-temperatures, from November's enjoyable 65.5°F (18.6°C) to a still refreshing 56.8°F (13.8°C). During the nights in December, Blum observes an average low-temperature of 42.1°F (5.6°C).Humidity
The average relative humidity in December is 70%.Rainfall
In Blum, in December, during 10 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, there are 136 rainfall days, and 29.25" (743mm) of precipitation is accumulated.Snowfall
Months with snowfall are February, March and December. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 2.3 snowfall days, and 0.63" (16mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 5:24 pm. On the last day of December, sunrise is at 7:30 am and sunset at 5:35 pm CST.
Sunshine
With an average of 5.4h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 3 during December leads to these advisories:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Blum, TX
- Average high temperature in December: 56.8°F
The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in December: 42.1°F
The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in December
Blum, TX
- Average pressure in December: 30.12"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
Blum, TX
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).
Average humidity in December
Blum, TX
- Average humidity in December: 70%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).
Average rainfall in December
Blum, TX
- Average rainfall in December: 1.89"
The wettest month (with the highest rainfall) is October (4.17").
The driest month (with the least rainfall) is November (1.54").
Average rainfall days in December
Blum, TX
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Blum, TX
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Blum, TX
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Blum, TX
- Average daylight in December: 10h and 6min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Blum, TX
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is September (13.1 days).
Average UV index in December
Blum, TX
- Average UV index in December: 3
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Blum, TX
- Average cloud cover in December: 38
The month with the most cloud cover is March (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 22).
Average visibility in December
Blum, 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).





