December weather forecastTwentynine Palms, CA
December
Weather in December
The first month of the winter, December, is still a mild month in Twentynine Palms, California, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 56.5°F (13.6°C).Temperature
December, characterized by an average high temperature of 56.5°F (13.6°C) and a low temperature of 42.4°F (5.8°C), is generally the coldest month.Humidity
December is the most humid month, with an average relative humidity of 43%.Rainfall
In Twentynine Palms, in December, during 4.6 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. Throughout the year, there are 42.3 rainfall days, and 4.45" (113mm) of precipitation is accumulated.Snowfall
In Twentynine Palms, snow does not fall in January, March through December.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:32 am and sunset at 4:34 pm. On the last day of December, sunrise is at 6:49 am and sunset at 4:45 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 7.1h of sunshine.UV index
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 moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 3 in December leads to these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Twentynine Palms, CA
- Average high temperature in December: 56.5°F
The warmest month (with the highest average high temperature) is July (98.1°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in December: 42.4°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).
Average pressure in December
Twentynine Palms, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).
Average wind speed in December
Twentynine Palms, CA
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest months (with the lowest average wind speed) are August and September (6.2mph).
Average humidity in December
Twentynine Palms, CA
- Average humidity in December: 43%
The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (20%).
Average rainfall in December
Twentynine Palms, CA
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Twentynine Palms, CA
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is July (6.9 days).
The month with the least rainy days is June (1.1 days).
Average snowfall in December
Twentynine Palms, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Twentynine Palms, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Twentynine Palms, CA
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 7h and 6min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in December
Twentynine Palms, CA
- Average sunshine days in December: 25 days
The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (20.4 days).
Average UV index in December
Twentynine Palms, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
Twentynine Palms, CA
- 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 June (Cloud cover 4).
Average visibility in December
Twentynine Palms, CA
- 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).
