December weather forecastRichgrove, CA
December
Weather in December
The first month of the winter, December, is still a mild month in Richgrove, California, with temperature in the range of an average low of 41.9°F (5.5°C) and an average high of 58.1°F (14.5°C).Temperature
December is the coldest month, exhibiting average temperatures of 58.1°F (14.5°C) at the peak and 41.9°F (5.5°C) at the base.Humidity
January and December, with an average relative humidity of 63%, are the most humid months.Rainfall
In Richgrove, in December, it is raining for 6.9 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 52 rainfall days, and 6.85" (174mm) of precipitation is accumulated.Snowfall
In Richgrove, snow does not fall in January, March through December.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:48 am and sunset at 4:42 pm. On the last day of December, in Richgrove, sunrise is at 7:06 am and sunset at 4:53 pm PST.
Sunshine
With an average of 6.7h of sunshine, December has the least sunshine of the year in Richgrove, California.UV index
November and December, with an average maximum UV index of 3, are months with the lowest UV index in Richgrove, California. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 3 suggests these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Richgrove, CA
- Average high temperature in December: 58.1°F
The warmest month (with the highest average high temperature) is July (99.7°F).
The month with the lowest average high temperature is December (58.1°F).
- Average low temperature in December: 41.9°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in December
Richgrove, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Richgrove, CA
- Average wind speed in December: 3.5mph
The windiest month (with the highest average wind speed) is June (5mph).
The calmest months (with the lowest average wind speed) are November and December (3.5mph).
Average humidity in December
Richgrove, CA
- Average humidity in December: 63%
The months with the highest relative humidity are January and December (63%).
The month with the lowest relative humidity is August (30%).
Average rainfall in December
Richgrove, CA
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is March (1.34").
The driest month (with the least rainfall) is August (0.08").
Average rainfall days in December
Richgrove, CA
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is August (0.9 days).
Average snowfall in December
Richgrove, 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
Richgrove, 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 January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Richgrove, CA
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Richgrove, CA
- Average sunshine days in December: 22.3 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (20.7 days).
Average UV index in December
Richgrove, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
Richgrove, CA
- Average cloud cover in December: 25
The months with the most cloud cover are March and December (Cloud cover 25).
The months with the least cloud cover are July and August (Cloud cover 4).
Average visibility in December
Richgrove, 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).
