December weather forecastSan Ygnacio, TX
December
Weather in December
The first month of the winter, December, is still a pleasant month in San Ygnacio, Texas, with an average temperature fluctuating between 53.2°F (11.8°C) and 69.6°F (20.9°C).Temperature
With the arrival of December, San Ygnacio notices a mild change in the average high-temperature, sliding from November's moderately hot 76.8°F (24.9°C) to an agreeable 69.6°F (20.9°C). During December, the temperature tends to dip to an average of 53.2°F (11.8°C) at night.Humidity
With an average relative humidity of 62%, December is the most humid month.Rainfall
In December, the rain falls for 7.1 days. Throughout December, 0.67" (17mm) of precipitation is accumulated. In San Ygnacio, during the entire year, the rain falls for 100.8 days and collects up to 12.56" (319mm) of precipitation.Snowfall
The only month with snowfall is December. December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 30min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 5:43 pm. On the last day of December, sunrise is at 7:26 am and sunset at 5:55 pm CST.
Sunshine
With an average of 5.9h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 4 during December, leads to the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take to heart! Snow reflection can almost 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
San Ygnacio, TX
- Average high temperature in December: 69.6°F
The warmest month (with the highest average high temperature) is August (100.6°F).
The month with the lowest average high temperature is January (68.5°F).
- Average low temperature in December: 53.2°F
The month with the highest average low temperature is August (80.4°F).
The coldest month (with the lowest average low temperature) is January (51.8°F).
Average pressure in December
San Ygnacio, TX
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are May and June (29.86"Hg).
Average wind speed in December
San Ygnacio, TX
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is July (14.5mph).
The calmest month (with the lowest average wind speed) is December (8.8mph).
Average humidity in December
San Ygnacio, TX
- Average humidity in December: 62%
The month with the highest relative humidity is December (62%).
The month with the lowest relative humidity is August (50%).
Average rainfall in December
San Ygnacio, TX
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is September (2.83").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in December
San Ygnacio, TX
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is September (15.8 days).
The month with the least rainy days is August (6.4 days).
Average snowfall in December
San Ygnacio, TX
- Average snowfall in December: 0.04"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
San Ygnacio, TX
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
San Ygnacio, TX
- Average daylight in December: 10h and 30min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in December: 5h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
San Ygnacio, TX
- Average sunshine days in December: 21.6 days
The month with the most sunshine days is August (23.2 days).
The month with the least sunshine days is September (12.8 days).
Average UV index in December
San Ygnacio, TX
- Average UV index in December: 4
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
San Ygnacio, TX
- Average cloud cover in December: 34
The month with the most cloud cover is December (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
San Ygnacio, 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).
