December weather forecastCool, TX
December
Weather in December
December, the first month of the winter in Cool, is still a refreshing month, with temperature in the range of an average high of 55.8°F (13.2°C) and an average low of 39.7°F (4.3°C).Temperature
The commencement of December involves a temperature shift, with the average high-temperature dropping from a refreshing 65.3°F (18.5°C) in November to a moderate 55.8°F (13.2°C). During December, the temperature tends to dip to an average of 39.7°F (4.3°C) at night.Humidity
In December, the average relative humidity is 65%.Rainfall
The months with the least rainfall are January and December Rain falls for 7 days and accumulates 1.18" (30mm) of rain.Snowfall
Months with snowfall in Cool are January through March, November and December. In Cool, during December, snow falls for 0.6 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, there are 2.8 snowfall days, and 1.61" (41mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:36 pm CST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 during December translates into the following directions:
Take precautions - Protection against skin and eye damage is obliged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cool, TX
- Average high temperature in December: 55.8°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (55.2°F).
- Average low temperature in December: 39.7°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in December
Cool, 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 (29.89"Hg).
Average wind speed in December
Cool, TX
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is September (7.2mph).
Average humidity in December
Cool, TX
- Average humidity in December: 65%
The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (54%).
Average rainfall in December
Cool, TX
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is October (3.03").
The driest months (with the least rainfall) are January and December (1.18").
Average rainfall days in December
Cool, TX
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in December
Cool, TX
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Cool, TX
- Average snowfall days in December: 0.6 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 and October (0 days).
Average daylight in December /
Average sunshine in December
Cool, 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: 6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Cool, TX
- Average sunshine days in December: 21.6 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is May (16 days).
Average UV index in December
Cool, TX
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Cool, TX
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in December
Cool, 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).
