December weather forecastCanyondam, CA
December
Weather in December
December, the first month of the winter in Canyondam, is also a wintry month, with an average temperature ranging between min 24.3°F (-4.3°C) and max 39.4°F (4.1°C).Temperature
The month of December sees the lowest average temperatures, reaching 39.4°F (4.1°C) at the peak and 24.3°F (-4.3°C) at the low.Humidity
In Canyondam, the average relative humidity in December is 79%.Rainfall
In Canyondam, in December, during 8.7 rainfall days, 5.04" (128mm) of precipitation is typically accumulated. In Canyondam, during the entire year, the rain falls for 94 days and collects up to 31.42" (798mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In December, it is snowing for 11.7 days. Throughout December, 24.92" (633mm) of snow is accumulated. Throughout the year, there are 64.4 snowfall days, and 126.02" (3201mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Canyondam.On the first day of December, sunrise is at 7:08 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:48 pm PST.
Sunshine
In December, the average sunshine is 5.4h.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Canyondam, CA
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (39.4°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is July (48.9°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).
Average pressure in December
Canyondam, CA
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Canyondam, CA
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Canyondam, CA
- Average humidity in December: 79%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is July (41%).
Average rainfall in December
Canyondam, CA
- Average rainfall in December: 5.04"
The wettest month (with the highest rainfall) is March (5.51").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Canyondam, CA
- Average rainfall days in December: 8.7 days
The months with the highest number of rainy days are March and April (13.2 days).
The month with the least rainy days is August (2.4 days).
Average snowfall in December
Canyondam, CA
- Average snowfall in December: 24.92"
The month with the highest snowfall is February (27.64").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Canyondam, CA
- Average snowfall days in December: 11.7 days
The month with the highest number of snowfall days is March (13.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Canyondam, CA
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Canyondam, CA
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is August (26.6 days).
The month with the least sunshine days is March (11.2 days).
Average UV index in December
Canyondam, CA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
Canyondam, CA
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in December
Canyondam, 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).
