December weather forecastDenison, TX
December
Weather in December
The first month of the winter, December, is still a cool month in Denison, Texas, with an average temperature ranging between min 38.8°F (3.8°C) and max 52.7°F (11.5°C).Temperature
In Denison, the average high-temperature in December decreases from a comfortable 62.1°F (16.7°C) in November to a cool 52.7°F (11.5°C). Throughout December, a steady low-temperature average of 38.8°F (3.8°C) is noted.Humidity
In December, the average relative humidity in Denison, Texas, is 71%.Rainfall
In Denison, Texas, in December, during 9 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Denison, Texas, during the entire year, the rain falls for 139.5 days and collects up to 32.72" (831mm) of precipitation.Snowfall
Months with snowfall in Denison are January through March, November and December. In Denison, in December, during 0.5 snowfall days, 0.24" (6mm) of snow is typically accumulated. Throughout the year, there are 3.8 snowfall days, and 1.97" (50mm) of snow is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of December in Denison, sunrise is at 7:13 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:28 pm CST.
Sunshine
With an average of 5.5h of sunshine, December has the least sunshine of the year in Denison.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 health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 3 suggests these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Denison, TX
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (51.8°F).
- Average low temperature in December: 38.8°F
The month with the highest average low temperature is July (74.1°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).
Average pressure in December
Denison, 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 (29.9"Hg).
Average wind speed in December
Denison, TX
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (7mph).
Average humidity in December
Denison, TX
- Average humidity in December: 71%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (60%).
Average rainfall in December
Denison, TX
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in December
Denison, TX
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in December
Denison, TX
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Denison, TX
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.6 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
Denison, TX
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Denison, TX
- Average sunshine days in December: 20.3 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is May (14 days).
Average UV index in December
Denison, 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, November and December (UV index 3).
Average cloud cover in December
Denison, TX
- Average cloud cover in December: 37
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Denison, 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).





