December weather forecastSierra Blanca, TX
December
Weather in December
The first month of the winter, December, is still a refreshing month in Sierra Blanca, Texas, with temperature in the range of an average high of 56.3°F (13.5°C) and an average low of 37.9°F (3.3°C).Temperature
December signals a slight drop in average high-temperature, sliding from November's comfortable 64.2°F (17.9°C) to a moderate 56.3°F (13.5°C). In Sierra Blanca, an average nighttime temperature of 37.9°F (3.3°C) is expected during December.Humidity
The months with the highest humidity are September and December, with an average relative humidity of 49%.Rainfall
In Sierra Blanca, in December, during 4.2 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. Throughout the year, there are 82.5 rainfall days, and 10.35" (263mm) of precipitation is accumulated.Snowfall
Months with snowfall are January, February, October through December. In Sierra Blanca, in December, snow falls for 1.4 days, with typically accumulated 0.59" (15mm) of snow. In Sierra Blanca, Texas, during the entire year, snow falls for 3.5 days and aggregates up to 1.85" (47mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 6:42 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:09 pm MST.
Sunshine
December has the least sunshine of the year, with an average of 8h of sunshine.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 3 in December converts into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. 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. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sierra Blanca, TX
- Average high temperature in December: 56.3°F
The warmest month (with the highest average high temperature) is June (92.8°F).
The month with the lowest average high temperature is January (55.6°F).
- Average low temperature in December: 37.9°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in December
Sierra Blanca, TX
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Sierra Blanca, TX
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are August and September (7.1mph).
Average humidity in December
Sierra Blanca, TX
- Average humidity in December: 49%
The months with the highest relative humidity are September and December (49%).
The month with the lowest relative humidity is April (25%).
Average rainfall in December
Sierra Blanca, TX
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is September (1.85").
The driest month (with the least rainfall) is February (0.2").
Average rainfall days in December
Sierra Blanca, TX
- Average rainfall days in December: 4.2 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Sierra Blanca, TX
- Average snowfall in December: 0.59"
The month with the highest snowfall is November (0.75").
The months with the least snowfall are March, April, May, June, July, August and September (0").
Average snowfall days in December
Sierra Blanca, TX
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is December (1.4 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sierra Blanca, TX
- Average daylight in December: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 8h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 8h and 0min).
Average sunshine days in December
Sierra Blanca, TX
- Average sunshine days in December: 26.1 days
The month with the most sunshine days is January (26.9 days).
The month with the least sunshine days is August (11.3 days).
Average UV index in December
Sierra Blanca, TX
- Average UV index in December: 3
The months with the highest UV index are May, June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in December
Sierra Blanca, TX
- Average cloud cover in December: 18
The month with the most cloud cover is September (Cloud cover 19).
The months with the least cloud cover are May and June (Cloud cover 10).
Average visibility in December
Sierra Blanca, 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).
