December weather forecastSherman, TX
December
Weather in December
The first month of the winter, December, is also a fresh month in Sherman, Texas, with an average temperature ranging between max 52.9°F (11.6°C) and min 39°F (3.9°C).Temperature
The shift to December brings a decrease in the average high-temperature, falling from a refreshing 62.2°F (16.8°C) in November to a fresh 52.9°F (11.6°C). Throughout the month of December, Sherman reports a steady low-temperature average of 39°F (3.9°C).Humidity
The average relative humidity in December is 71%.Rainfall
In Sherman, during December, the rain falls for 9 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Sherman, during the entire year, the rain falls for 140.2 days and collects up to 31.77" (807mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In December, it is snowing for 0.5 days. Throughout December, 0.31" (8mm) of snow is accumulated. In Sherman, Texas, during the entire year, snow falls for 3.8 days and aggregates up to 1.89" (48mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:13 am and sunset at 5:18 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 5.7h of sunshine, December has the least sunshine of the year.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sherman, TX
- Average high temperature in December: 52.9°F
The warmest month (with the highest average high temperature) is August (94.1°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in December: 39°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
Sherman, 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
Sherman, TX
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).
Average humidity in December
Sherman, TX
- Average humidity in December: 71%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (60%).
Average rainfall in December
Sherman, TX
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is October (4.09").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in December
Sherman, TX
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Sherman, TX
- Average snowfall in December: 0.31"
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
Sherman, TX
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.8 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
Sherman, 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 42min
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 42min).
Average sunshine days in December
Sherman, TX
- Average sunshine days in December: 20 days
The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is April (13.9 days).
Average UV index in December
Sherman, TX
- Average UV index in December: 2
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 2).
Average cloud cover in December
Sherman, TX
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Sherman, 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).
