December weather forecastSumner, TX
December
Weather in December
The first month of the winter, December, is still a cool month in Sumner, Texas, with an average temperature varying between 53.4°F (11.9°C) and 38.8°F (3.8°C).Temperature
In December, the meteorological conditions change slightly, with the average high-temperature moving from an enjoyable 62.2°F (16.8°C) in November to a cool 53.4°F (11.9°C). An average low-temperature of 38.8°F (3.8°C) marks the nights in Sumner throughout December.Humidity
The average relative humidity in December in Sumner, Texas, is 75%.Rainfall
In December, in Sumner, the rain falls for 10.6 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. In Sumner, during the entire year, the rain falls for 148.7 days and collects up to 36.57" (929mm) of precipitation.Snowfall
April through October and December are months without snowfall.Daylight
The month with the shortest days in Sumner is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 5:14 pm. On the last day of December, in Sumner, sunrise is at 7:27 am and sunset at 5:24 pm CST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year in Sumner, Texas.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Sumner. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 3 during December, leads to the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sumner, TX
- Average high temperature in December: 53.4°F
The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in December: 38.8°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).
Average pressure in December
Sumner, 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 (29.92"Hg).
Average wind speed in December
Sumner, TX
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are February and March (9.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Sumner, TX
- Average humidity in December: 75%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Sumner, TX
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in December
Sumner, TX
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Sumner, TX
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in December
Sumner, TX
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (1.2 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
Sumner, 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 18min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Sumner, TX
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is April (13.8 days).
Average UV index in December
Sumner, 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, February, November and December (UV index 3).
Average cloud cover in December
Sumner, TX
- Average cloud cover in December: 41
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Sumner, 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).
