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
The transition into December subtly indicates a reduction in the average high-temperature, down to a mild 55.6°F (13.1°C) from November's comfortable 62.8°F (17.1°C). During December, an average low-temperature of 37.4°F (3°C) is observed.Humidity
In December, the average relative humidity is 50%.Rainfall
In Marfa, in December, during 3.1 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Marfa, during the entire year, the rain falls for 91 days and collects up to 12.4" (315mm) of precipitation.Snowfall
Months with snowfall are January through March, October through December. In Marfa, in December, snow falls for 1.4 days, with typically accumulated 0.43" (11mm) of snow. Throughout the year, there are 4.6 snowfall days, and 2.24" (57mm) of snow is accumulated.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:35 am and sunset at 5:55 pm. On the last day of December, sunrise is at 7:52 am and sunset at 6:06 pm CST.
Sunshine
With an average of 7.8h 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 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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 much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Marfa have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Marfa, TX
- Average high temperature in December: 55.6°F
The warmest month (with the highest average high temperature) is June (88.3°F).
The month with the lowest average high temperature is January (55.2°F).
- Average low temperature in December: 37.4°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (35.8°F).
Average pressure in December
Marfa, 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 (29.83"Hg).
Average wind speed in December
Marfa, TX
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are August and September (7.3mph).
Average humidity in December
Marfa, TX
- Average humidity in December: 50%
The month with the highest relative humidity is September (58%).
The month with the lowest relative humidity is April (28%).
Average rainfall in December
Marfa, TX
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is September (2.64").
The driest month (with the least rainfall) is February (0.2").
Average rainfall days in December
Marfa, TX
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in December
Marfa, TX
- Average snowfall in December: 0.43"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Marfa, TX
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is January (1.5 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
Marfa, TX
- Average daylight in December: 10h and 1min
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: 7h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 48min).
Average sunshine days in December
Marfa, TX
- Average sunshine days in December: 26.5 days
The months with the most sunshine days are January and December (26.5 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in December
Marfa, TX
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Marfa, TX
- Average cloud cover in December: 18
The month with the most cloud cover is September (Cloud cover 24).
The month with the least cloud cover is May (Cloud cover 12).
Average visibility in December
Marfa, 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).
Marfa, Texas, USA
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