December weather forecastSidney, TX
December
Weather in December
December, the first month of the winter in Sidney, is still a refreshing month, with an average temperature varying between 40.5°F (4.7°C) and 56.8°F (13.8°C).Temperature
Sidney's coldest period falls in January and December, when the average high-temperatures ascend to 56.8°F (13.8°C).Humidity
The average relative humidity in December is 63%.Rainfall
In Sidney, in December, it is raining for 7.4 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 115 rainfall days, and 19.49" (495mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sidney are January through March and December. The months with the most snowfall are February and December, with an average 0.83" (21mm) of accumulated snow.Daylight
With an average of 10h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:18 am and sunset at 5:30 pm. On the last day of December, sunrise is at 7:35 am and sunset at 5:41 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.9h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 3 transforms into these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sidney, TX
- Average high temperature in December: 56.8°F
The warmest month (with the highest average high temperature) is August (95.2°F).
The months with the lowest average high temperature are January and December (56.8°F).
- Average low temperature in December: 40.5°F
The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in December
Sidney, TX
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Sidney, TX
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is September (8.1mph).
Average humidity in December
Sidney, TX
- Average humidity in December: 63%
The month with the highest relative humidity is May (68%).
The month with the lowest relative humidity is August (53%).
Average rainfall in December
Sidney, TX
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is October (2.48").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Sidney, TX
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Sidney, TX
- Average snowfall in December: 0.83"
The months with the highest snowfall are February and December (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Sidney, TX
- Average snowfall days in December: 1.2 days
The month with the highest number of snowfall days is February (1.7 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
Sidney, TX
- Average daylight in December: 10h and 6min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 5h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
Sidney, TX
- Average sunshine days in December: 21.1 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is May (14.9 days).
Average UV index in December
Sidney, TX
- Average UV index in December: 3
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Sidney, TX
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Sidney, 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).





