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
The coldest period is December, when temperatures fluctuate between an average high of 54.5°F (12.5°C) and a low of 38.8°F (3.8°C).Humidity
With an average relative humidity of 49%, December is the most humid month.Rainfall
In La Mesa, during December, the rain falls for 4.2 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, there are 62.9 rainfall days, and 6.65" (169mm) of precipitation is accumulated.Snowfall
Months with snowfall in La Mesa are January, February, November and December. The months with the most snowfall are February and December, with an average 0.63" (16mm) 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 6:50 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:07 am and sunset at 5:12 pm MST.
Sunshine
With an average of 7h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 3 during December leads to these instructions:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
What is the snowiest month in La Mesa?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does La Mesa have in December?
When is the sunrise / sunset in December in La Mesa?
What is the month with the least sunshine?
How many hours of sunshine does La Mesa have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
La Mesa, NM
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is June (94.6°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in December: 38.8°F
The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).
Average pressure in December
La Mesa, NM
- 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 (29.83"Hg).
Average wind speed in December
La Mesa, NM
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in December
La Mesa, NM
- Average humidity in December: 49%
The month with the highest relative humidity is December (49%).
The months with the lowest relative humidity are April and May (22%).
Average rainfall in December
La Mesa, NM
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is April (0.08").
Average rainfall days in December
La Mesa, NM
- Average rainfall days in December: 4.2 days
The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is April (2.3 days).
Average snowfall in December
La Mesa, NM
- Average snowfall in December: 0.63"
The months with the highest snowfall are February and December (0.63").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in December
La Mesa, NM
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is December (1 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
La Mesa, NM
- 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: 7h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
La Mesa, NM
- Average sunshine days in December: 26.3 days
The month with the most sunshine days is April (28.1 days).
The month with the least sunshine days is July (17.2 days).
Average UV index in December
La Mesa, NM
- 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
La Mesa, NM
- Average cloud cover in December: 19
The month with the most cloud cover is December (Cloud cover 19).
The months with the least cloud cover are May and June (Cloud cover 9).
Average visibility in December
La Mesa, NM
- 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).
La Mesa, New Mexico, USA
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