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 involves a decrease in temperature, down from a frosty 46.2°F (7.9°C) in November to a wintry 33.8°F (1°C). Alamosa records an average nighttime low of 15.4°F (-9.2°C) in December.Humidity
In Alamosa, the average relative humidity in December is 71%.Rainfall
November and December are months with the least rain in Alamosa when the rain falls for 4.4 days and typically aggregates up to 0.31" (8mm) of rain.Snowfall
January through May, October through December are months with snowfall in Alamosa. In December, in Alamosa, it is snowing for 6.8 days. Throughout December, 2.48" (63mm) of snow is accumulated. In Alamosa, during the entire year, snow falls for 37 days and aggregates up to 20.08" (510mm) of snow.Daylight
December has the shortest days of the year in Alamosa, with an average of 9h and 36min of daylight.On the first day of December in Alamosa, sunrise is at 6:59 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:55 pm MST.
Sunshine
In December, the average sunshine is 7h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Alamosa in December?
What is the average humidity in December in Alamosa?
What is the driest month in Alamosa?
How much does it rain in Alamosa in December?
How many days does it snow in December in Alamosa?
What is the month with the shortest days in Alamosa?
What is the average length of the day in December in Alamosa?
What time are sunrise and sunset in December in Alamosa?
How long on average sun shines in December in Alamosa?
When is the lowest UV index in Alamosa?
What is the UV index reading in December in Alamosa?
Average temperature in December
Alamosa, CO
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in December
Alamosa, CO
- 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 April (29.91"Hg).
Average wind speed in December
Alamosa, CO
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Alamosa, CO
- Average humidity in December: 71%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (37%).
Average rainfall in December
Alamosa, CO
- Average rainfall in December: 0.31"
The wettest month (with the highest rainfall) is July (1.18").
The driest months (with the least rainfall) are November and December (0.31").
Average rainfall days in December
Alamosa, CO
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (2.1 days).
Average snowfall in December
Alamosa, CO
- Average snowfall in December: 2.48"
The months with the highest snowfall are January and March (3.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Alamosa, CO
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Alamosa, CO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in December
Alamosa, CO
- Average sunshine days in December: 23.3 days
The month with the most sunshine days is November (25.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in December
Alamosa, CO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Alamosa, CO
- Average cloud cover in December: 22
The months with the most cloud cover are January and February (Cloud cover 25).
The months with the least cloud cover are June, September and October (Cloud cover 12).
Average visibility in December
Alamosa, CO
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Alamosa, Colorado, USA
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