December weather forecastEl Casco, CA
December
Weather in December
December, the first month of the winter in El Casco, is still a refreshing month, with an average temperature ranging between max 56.3°F (13.5°C) and min 40.1°F (4.5°C).Temperature
With average temperatures fluctuating between a high of 56.3°F (13.5°C) and a low of 40.1°F (4.5°C), December stands out as the coldest month.Humidity
The average relative humidity in December is 52%.Rainfall
In December, in El Casco, the rain falls for 6.1 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in El Casco, there are 49.3 rainfall days, and 6.69" (170mm) of precipitation is accumulated.Snowfall
February through April, November and December are months with snowfall. December is the last month it regularly snows in El Casco. During 0.3 snowfall days, in December, El Casco aggregates 0.28" (7mm) of snow. Throughout the year, in El Casco, there are 2.6 snowfall days, and 2.05" (52mm) of snow is accumulated.Daylight
December has the shortest days of the year in El Casco, California, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:36 am and sunset at 4:39 pm. On the last day of December, in El Casco, sunrise is at 6:53 am and sunset at 4:49 pm PST.
Sunshine
December has the least sunshine of the year in El Casco, with an average of 6.7h of sunshine.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 reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 3 during December morphs into the following directions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
El Casco, CA
- Average high temperature in December: 56.3°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in December: 40.1°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in December
El Casco, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
El Casco, CA
- Average wind speed in December: 5.9mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is September (5.2mph).
Average humidity in December
El Casco, CA
- Average humidity in December: 52%
The month with the highest relative humidity is February (54%).
The month with the lowest relative humidity is August (36%).
Average rainfall in December
El Casco, CA
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is February (1.38").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
El Casco, CA
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.4 days).
Average snowfall in December
El Casco, CA
- Average snowfall in December: 0.28"
The month with the highest snowfall is November (0.87").
The months with the least snowfall are January, May, June, July, August, September and October (0").
Average snowfall days in December
El Casco, CA
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are January, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
El Casco, CA
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
El Casco, CA
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is June (27.6 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in December
El Casco, CA
- Average UV index in December: 3
The month with the highest UV index is 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
El Casco, CA
- Average cloud cover in December: 24
The months with the most cloud cover are February, March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
El Casco, 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).
