Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December witnesses a gentle descent in average high-temperature, descending from November's refreshing 66.2°F (19°C) to a mild 57.9°F (14.4°C). An average low-temperature of 42.6°F (5.9°C) is noted during the nights in December.Humidity
In Alto, the average relative humidity in December is 81%.Rainfall
In Alto, in December, during 12.6 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. In Alto, during the entire year, the rain falls for 159.2 days and collects up to 35.12" (892mm) of precipitation.Snowfall
January through March and December are months with snowfall in Alto, Texas. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 1.5 snowfall days, and 0.43" (11mm) of snow is accumulated.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 7:02 am and sunset at 5:16 pm. On the last day of December, sunrise is at 7:19 am and sunset at 5:27 pm CST.
Sunshine
With an average of 4.9h of sunshine, December has the least sunshine of the year.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How much does it rain in December?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does Alto have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Alto have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Alto, TX
- Average high temperature in December: 57.9°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in December: 42.6°F
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in December
Alto, TX
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Alto, TX
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in December
Alto, TX
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Alto, TX
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in December
Alto, TX
- Average rainfall days in December: 12.6 days
The months with the highest number of rainy days are March and June (14.5 days).
The month with the least rainy days is November (11 days).
Average snowfall in December
Alto, TX
- Average snowfall in December: 0.04"
The month with the highest snowfall is January (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Alto, TX
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Alto, TX
- Average daylight in December: 10h and 1min
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: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Alto, TX
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in December
Alto, 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
Alto, TX
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Alto, TX
- Average visibility in December: 5mi
The month with the highest visibility is August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (5mi).
Alto, Texas, USA
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