December weather forecastEl Macero, CA
December
Weather in December
December, the first month of the winter in El Macero, is still a cool month, with temperature in the range of an average high of 54.5°F (12.5°C) and an average low of 41.4°F (5.2°C).Temperature
El Macero's December weather, with an average high temperature of 54.5°F (12.5°C) and an average low temperature of 41.4°F (5.2°C), tends to be the coldest of the year.Humidity
In El Macero, the average relative humidity in December is 71%.Rainfall
In El Macero, in December, during 9.7 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In El Macero, during the entire year, the rain falls for 67.4 days and collects up to 12.17" (309mm) of precipitation.Daylight
December has the shortest days of the year in El Macero, California, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:56 pm PST.
Sunshine
With an average of 5.6h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 3 during December translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
El Macero, CA
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in December: 41.4°F
The month with the highest average low temperature is August (59.2°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure in December
El Macero, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in December
El Macero, CA
- Average wind speed in December: 5.6mph
The windiest months (with the highest average wind speed) are May and June (6.3mph).
The calmest month (with the lowest average wind speed) is November (5mph).
Average humidity in December
El Macero, CA
- Average humidity in December: 71%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (45%).
Average rainfall in December
El Macero, CA
- Average rainfall in December: 1.89"
The wettest month (with the highest rainfall) is February (2.44").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
El Macero, CA
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is March (12.5 days).
The months with the least rainy days are July and August (0.8 days).
Average daylight in December /
Average sunshine in December
El Macero, CA
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
El Macero, CA
- Average sunshine days in December: 20.1 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.8 days).
Average UV index in December
El Macero, 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
El Macero, CA
- Average cloud cover in December: 37
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in December
El Macero, 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).
