December weather forecastMartinsville, TX
December
Weather in December
The first month of the winter, December, is also a moderate month in Martinsville, Texas, with an average temperature fluctuating between 42.8°F (6°C) and 57.4°F (14.1°C).Temperature
A mild shift in the average high-temperature occurs in December, reducing from a comfortable 65.3°F (18.5°C) in November to a moderate 57.4°F (14.1°C). Martinsville experiences a consistent average temperature of 42.8°F (6°C) throughout the nights in December.Humidity
The average relative humidity in December is 81%.Rainfall
In Martinsville, during December, the rain falls for 12.6 days and regularly aggregates up to 3.03" (77mm) of precipitation. Throughout the year, in Martinsville, there are 160.4 rainfall days, and 35.83" (910mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, September and December. December is the first month it typically snows in Martinsville. Throughout December, in the average 0.6 snowfall days, it receives 0.12" (3mm) of snow. In Martinsville, during the entire year, snow falls for 2.6 days and aggregates up to 0.79" (20mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 6min of daylight.On the first day of December in Martinsville, Texas, sunrise is at 7:00 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:24 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 5h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a regular UV index of 3 translates into these guidelines:
Be vigilant - A duty to shield skin and eyes from injury exists. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Martinsville, TX
- Average high temperature in December: 57.4°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (55.8°F).
- Average low temperature in December: 42.8°F
The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in December
Martinsville, 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 (29.93"Hg).
Average wind speed in December
Martinsville, TX
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in December
Martinsville, TX
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Martinsville, TX
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.44").
Average rainfall days in December
Martinsville, TX
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
Martinsville, TX
- Average snowfall in December: 0.12"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, October and November (0").
Average snowfall days in December
Martinsville, TX
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Martinsville, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Martinsville, TX
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in December
Martinsville, TX
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Martinsville, TX
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Martinsville, TX
- Average visibility in December: 5mi
The months with the highest visibility are June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, September and December (5mi).
