December weather forecastWeed, CA
December
Weather in December
December, the first month of the winter in Weed, is still a cold month, with an average temperature varying between 40.1°F (4.5°C) and 25.5°F (-3.6°C).Temperature
December, marked by an average high-temperature of 40.1°F (4.5°C) and a low-temperature of 25.5°F (-3.6°C), is the coldest month.Humidity
In December, the average relative humidity is 79%.Rainfall
In December, in Weed, the rain falls for 12.6 days. Throughout December, 3.27" (83mm) of precipitation is accumulated. Throughout the year, there are 120 rainfall days, and 22.01" (559mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 8.5 days. Throughout December, 6.18" (157mm) of snow is accumulated. Throughout the year, there are 42.5 snowfall days, and 35.35" (898mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Weed.On the first day of December, sunrise is at 7:17 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:50 pm PST.
Sunshine
January and December, with an average of 5.6h of sunshine, are months with the least sunshine in Weed.UV index
The months with the lowest UV index in Weed are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Weed, CA
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is December (40.1°F).
- Average low temperature in December: 25.5°F
The months with the highest average low temperature are July and August (49.6°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in December
Weed, CA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in December
Weed, CA
- Average wind speed in December: 5.6mph
The windiest month (with the highest average wind speed) is March (6.3mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity in December
Weed, CA
- Average humidity in December: 79%
The months with the highest relative humidity are January and March (80%).
The month with the lowest relative humidity is August (48%).
Average rainfall in December
Weed, CA
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is March (3.62").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in December
Weed, CA
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in December
Weed, CA
- Average snowfall in December: 6.18"
The month with the highest snowfall is January (8.58").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Weed, CA
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is March (9.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Weed, CA
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in December
Weed, CA
- Average sunshine days in December: 13.9 days
The month with the most sunshine days is August (24.6 days).
The month with the least sunshine days is March (10 days).
Average UV index in December
Weed, CA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Weed, CA
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in December
Weed, CA
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).





