December weather forecastGreenville, TX
December
Weather in December
The first month of the winter, December, is also a fresh month in Greenville, Texas, with temperature in the range of an average high of 54.9°F (12.7°C) and an average low of 40.6°F (4.8°C).Temperature
December is marked by a subtle drop in average high-temperatures, transitioning from a refreshing 63.7°F (17.6°C) in November to a fresh 54.9°F (12.7°C). Greenville reports an average nighttime low-temperature of 40.6°F (4.8°C) in December.Humidity
In Greenville, the average relative humidity in December is 73%.Rainfall
In December, the rain falls for 11.3 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Greenville, Texas, during the entire year, the rain falls for 154.6 days and collects up to 34.45" (875mm) of precipitation.Snowfall
In Greenville, snow does not fall in April through October and December.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:10 am and sunset at 5:17 pm. On the last day of December, sunrise is at 7:27 am and sunset at 5:27 pm CST.
Sunshine
With an average of 5.4h of sunshine, December has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 3 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. 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
Greenville, TX
- Average high temperature in December: 54.9°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in December: 40.6°F
The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in December
Greenville, TX
- Average pressure in December: 30.13"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
Greenville, TX
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is September (6.4mph).
Average humidity in December
Greenville, TX
- Average humidity in December: 73%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (62%).
Average rainfall in December
Greenville, TX
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is October (4.29").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in December
Greenville, TX
- Average rainfall days in December: 11.3 days
The months with the highest number of rainy days are May and September (15.8 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in December
Greenville, TX
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in December
Greenville, TX
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Greenville, TX
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Greenville, TX
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (13 days).
Average UV index in December
Greenville, TX
- Average UV index in December: 3
The months with the highest UV index are 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
Greenville, TX
- Average cloud cover in December: 41
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Greenville, 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).
