December weather forecastSouth Gate, CA
December
Weather in December
The first month of the winter, December, is also an enjoyable month in South Gate, California, with an average temperature fluctuating between 51.3°F (10.7°C) and 64.4°F (18°C).Temperature
With average high temperatures of 64.4°F (18°C) and lows of 51.3°F (10.7°C), December is the coldest month.Humidity
In December, the average relative humidity is 54%.Rainfall
The wettest months are February and December, with an average 0.39" (10mm) of rainfall.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 6:40 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:54 pm PST.
Sunshine
With an average of 6.7h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 4 in December transforms into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
South Gate, CA
- Average high temperature in December: 64.4°F
The warmest month (with the highest average high temperature) is August (82.9°F).
The month with the lowest average high temperature is December (64.4°F).
- Average low temperature in December: 51.3°F
The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).
Average pressure in December
South Gate, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in December
South Gate, CA
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is October (4.7mph).
Average humidity in December
South Gate, CA
- Average humidity in December: 54%
The month with the highest relative humidity is June (67%).
The month with the lowest relative humidity is November (51%).
Average rainfall in December
South Gate, CA
- Average rainfall in December: 0.39"
The wettest months (with the highest rainfall) are February and December (0.39").
The driest months (with the least rainfall) are June, August and September (0").
Average rainfall days in December
South Gate, CA
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is March (4.5 days).
The month with the least rainy days is June (0.5 days).
Average daylight in December /
Average sunshine in December
South Gate, 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 months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
South Gate, CA
- Average sunshine days in December: 25.9 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is February (24.1 days).
Average UV index in December
South Gate, CA
- Average UV index in December: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in December
South Gate, CA
- Average cloud cover in December: 22
The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
South Gate, 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).
