December weather forecastDenny, CA
December
Weather in December
December, the first month of the winter in Denny, is also a frosty month, with temperature in the range of an average low of 30°F (-1.1°C) and an average high of 45°F (7.2°C).Temperature
The month of December, characterized by an average high of 45°F (7.2°C) and a low of 30°F (-1.1°C), is recognized as the coldest.Humidity
The average relative humidity in December is 81%.Rainfall
December is the month with the most rainfall in Denny. Rain falls for 14.5 days and accumulates 6.14" (156mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, in Denny, it is snowing for 4.3 days. Throughout December, 5.43" (138mm) of snow is accumulated. In Denny, during the entire year, snow falls for 21.6 days and aggregates up to 28.46" (723mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:19 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:55 pm PST.
Sunshine
December has the least sunshine of the year in Denny, with an average of 4.6h of sunshine.UV index
The months with the lowest UV index in Denny, California, are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Denny, CA
- Average high temperature in December: 45°F
The warmest months (with the highest average high temperature) are July and August (84.6°F).
The month with the lowest average high temperature is December (45°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is December (30°F).
Average pressure in December
Denny, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in December
Denny, CA
- Average wind speed in December: 4.2mph
The windiest months (with the highest average wind speed) are March and April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in December
Denny, CA
- Average humidity in December: 81%
The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is August (54%).
Average rainfall in December
Denny, CA
- Average rainfall in December: 6.14"
The wettest month (with the highest rainfall) is December (6.14").
The driest months (with the least rainfall) are July and August (0.16").
Average rainfall days in December
Denny, CA
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is August (2.5 days).
Average snowfall in December
Denny, CA
- Average snowfall in December: 5.43"
The month with the highest snowfall is February (8.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Denny, CA
- Average snowfall days in December: 4.3 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Denny, CA
- Average daylight in December: 9h and 18min
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 18min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Denny, CA
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in December
Denny, 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, November and December (UV index 2).
Average cloud cover in December
Denny, CA
- Average cloud cover in December: 52
The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in December
Denny, CA
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are March and December (4mi).
