December weather forecastAlamo Alto, TX
December
Weather in December
The first month of the winter, December, is still a mild month in Alamo Alto, Texas, with temperature in the range of an average high of 55.8°F (13.2°C) and an average low of 39.7°F (4.3°C).Temperature
The transition into December involves a decrease in the average high-temperature, falling from a comfortable 64.9°F (18.3°C) in November to a still refreshing 55.8°F (13.2°C). The average low-temperature, in December, is a wintry 39.7°F (4.3°C).Humidity
The most humid month is December, with an average relative humidity of 47%.Rainfall
In December, in Alamo Alto, Texas, the rain falls for 4.4 days. Throughout December, 0.43" (11mm) of precipitation is accumulated. Throughout the year, in Alamo Alto, there are 72.6 rainfall days, and 7.72" (196mm) of precipitation is accumulated.Snowfall
February and December are months with snowfall. December is the month with the most snowfall. Snow falls for 0.8 days and accumulates 0.47" (12mm) of snow.Daylight
December has the shortest days of the year in Alamo Alto, with an average of 10h and 6min of daylight.On the first day of December, sunrise is at 6:45 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 5:11 pm MST.
Sunshine
With an average of 7.2h of sunshine, December has the least sunshine of the year in Alamo Alto.UV index
January, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Alamo Alto, TX
- Average high temperature in December: 55.8°F
The warmest month (with the highest average high temperature) is June (94.5°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in December: 39.7°F
The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in December
Alamo Alto, TX
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed in December
Alamo Alto, TX
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is January (6.9mph).
Average humidity in December
Alamo Alto, TX
- Average humidity in December: 47%
The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is May (21%).
Average rainfall in December
Alamo Alto, TX
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is April (0.12").
Average rainfall days in December
Alamo Alto, TX
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is July (14.8 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in December
Alamo Alto, TX
- Average snowfall in December: 0.47"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Alamo Alto, TX
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is December (0.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September and November (0 days).
Average daylight in December /
Average sunshine in December
Alamo Alto, 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: 7h and 12min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).
Average sunshine days in December
Alamo Alto, TX
- Average sunshine days in December: 25.4 days
The months with the most sunshine days are January and March (27.3 days).
The month with the least sunshine days is August (10.3 days).
Average UV index in December
Alamo Alto, TX
- Average UV index in December: 3
The months with the highest UV index are May, 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
Alamo Alto, TX
- Average cloud cover in December: 18
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is May (Cloud cover 8).
Average visibility in December
Alamo Alto, 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).
