December weather forecastDurham, CA
December
Weather in December
December, the first month of the winter in Durham, is also a fresh month, with temperature in the range of an average low of 39°F (3.9°C) and an average high of 53.2°F (11.8°C).Temperature
December, with its high-temperature average of 53.2°F (11.8°C) and a low-temperature average of 39°F (3.9°C), is the coldest month.Humidity
In December, the average relative humidity in Durham is 67%.Rainfall
In December, the rain falls for 11.5 days. Throughout December, 3.9" (99mm) of precipitation is accumulated. Throughout the year, there are 90.7 rainfall days, and 21.81" (554mm) of precipitation is accumulated.Snowfall
December is the only month when snow falls. December is the month with the most snowfall. Snow falls for 0.4 days and accumulates 0.12" (3mm) of snow.Daylight
The month with the shortest days in Durham is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:43 pm. On the last day of December, in Durham, sunrise is at 7:27 am and sunset at 4:53 pm PST.
Sunshine
January and December, with an average of 5.9h of sunshine, are months with the least sunshine in Durham.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Durham, CA
- Average high temperature in December: 53.2°F
The warmest month (with the highest average high temperature) is July (95.2°F).
The month with the lowest average high temperature is December (53.2°F).
- Average low temperature in December: 39°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is December (39°F).
Average pressure in December
Durham, 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 June (29.9"Hg).
Average wind speed in December
Durham, CA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Durham, CA
- Average humidity in December: 67%
The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is July (32%).
Average rainfall in December
Durham, CA
- Average rainfall in December: 3.9"
The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Durham, CA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is August (1.9 days).
Average snowfall in December
Durham, CA
- Average snowfall in December: 0.12"
The month with the highest snowfall is December (0.12").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Durham, CA
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is December (0.4 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Durham, 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 54min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in December
Durham, CA
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is August (28.1 days).
The month with the least sunshine days is March (14.9 days).
Average UV index in December
Durham, CA
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Durham, CA
- Average cloud cover in December: 35
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
Durham, 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).





