December weather forecastWillits, CA
December
Weather in December
The first month of the winter, December, is still a cool month in Willits, California, with an average temperature fluctuating between 52.7°F (11.5°C) and 36.7°F (2.6°C).Temperature
With average temperatures fluctuating between a high of 52.7°F (11.5°C) and a low of 36.7°F (2.6°C), December stands out as the coldest month.Humidity
The average relative humidity in December in Willits is 78%.Rainfall
In December, the rain falls for 13.6 days. Throughout December, 4.69" (119mm) of precipitation is accumulated. In Willits, during the entire year, the rain falls for 95.1 days and collects up to 26.77" (680mm) of precipitation.Snowfall
In Willits, snow does not fall in May through October and December.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:00 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index in Willits are February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Willits, CA
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in December: 36.7°F
The month with the highest average low temperature is July (52.7°F).
The coldest month (with the lowest average low temperature) is February (36.3°F).
Average pressure in December
Willits, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
Willits, CA
- Average wind speed in December: 4.3mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Willits, CA
- Average humidity in December: 78%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are July and September (60%).
Average rainfall in December
Willits, CA
- Average rainfall in December: 4.69"
The wettest month (with the highest rainfall) is February (5").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in December
Willits, CA
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in December
Willits, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August, September, October and December (0").
Average snowfall days in December
Willits, CA
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Willits, CA
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 24min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in December
Willits, CA
- Average sunshine days in December: 16 days
The month with the most sunshine days is August (28.6 days).
The month with the least sunshine days is March (14.4 days).
Average UV index in December
Willits, CA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in December
Willits, CA
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in December
Willits, CA
- Average visibility in December: 5mi
The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).
