December weather forecastCecilville, CA
December
Weather in December
December, the first month of the winter in Cecilville, is still a chilly month, with an average temperature ranging between max 47.1°F (8.4°C) and min 30.7°F (-0.7°C).Temperature
The lowest temperatures are recorded in December, with averages reaching a high of 47.1°F (8.4°C) and a low of 30.7°F (-0.7°C).Humidity
The average relative humidity in December is 81%.Rainfall
In December, in Cecilville, California, the rain falls for 16 days. Throughout December, 6.54" (166mm) of precipitation is accumulated. Throughout the year, in Cecilville, California, there are 127.2 rainfall days, and 39.02" (991mm) of precipitation is accumulated.Snowfall
Months with snowfall in Cecilville, California, are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.39" (10mm) of snow. Throughout the year, in Cecilville, there are 3.3 snowfall days, and 2.83" (72mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December in Cecilville, California, sunrise is at 7:19 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:54 pm PST.
Sunshine
The month with the least sunshine in Cecilville is December, with an average of 4.8h of sunshine.UV index
February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. 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
Cecilville, CA
- Average high temperature in December: 47.1°F
The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (47.1°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is December (30.7°F).
Average pressure in December
Cecilville, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in December
Cecilville, CA
- Average wind speed in December: 4.6mph
The windiest month (with the highest average wind speed) is March (5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Cecilville, CA
- Average humidity in December: 81%
The month with the highest relative humidity is March (84%).
The month with the lowest relative humidity is August (61%).
Average rainfall in December
Cecilville, CA
- Average rainfall in December: 6.54"
The wettest month (with the highest rainfall) is January (7.17").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in December
Cecilville, CA
- Average rainfall days in December: 16 days
The month with the highest number of rainy days is March (19.3 days).
The months with the least rainy days are July and August (2.3 days).
Average snowfall in December
Cecilville, CA
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Cecilville, CA
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.4 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
Cecilville, 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 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Cecilville, CA
- Average sunshine days in December: 14 days
The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is March (10.3 days).
Average UV index in December
Cecilville, 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 February, November and December (UV index 2).
Average cloud cover in December
Cecilville, CA
- Average cloud cover in December: 50
The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Cecilville, CA
- Average visibility in December: 4mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are March, April and December (4mi).
