December weather forecastGuinda, CA
December
Weather in December
December, the first month of the winter in Guinda, is still a cool month, with an average temperature ranging between max 54.3°F (12.4°C) and min 41.5°F (5.3°C).Temperature
The coldest temperatures occur during December, when averages reach a peak of 54.3°F (12.4°C) and a low of 41.5°F (5.3°C).Humidity
In Guinda, the average relative humidity in December is 70%.Rainfall
In Guinda, during December, the rain falls for 10.5 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Guinda, during the entire year, the rain falls for 70.7 days and collects up to 12.52" (318mm) of precipitation.Snowfall
December is the only month when snow falls. The month with the most snowfall days is December, when snow falls for 0.1 days.Daylight
December has the shortest days of the year in Guinda, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:57 pm PST.
Sunshine
With an average of 5.7h 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 reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 3 in December transforms into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guinda, CA
- Average high temperature in December: 54.3°F
The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in December: 41.5°F
The months with the highest average low temperature are July and August (59.2°F).
The coldest months (with the lowest average low temperature) are January and December (41.5°F).
Average pressure in December
Guinda, 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 June (29.9"Hg).
Average wind speed in December
Guinda, CA
- Average wind speed in December: 5.6mph
The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is September (5mph).
Average humidity in December
Guinda, CA
- Average humidity in December: 70%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (43%).
Average rainfall in December
Guinda, CA
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is February (2.52").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
Guinda, CA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is July (0.8 days).
Average snowfall days in December
Guinda, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Guinda, 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 42min
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 42min).
Average sunshine days in December
Guinda, CA
- Average sunshine days in December: 19.4 days
The months with the most sunshine days are July and August (29.3 days).
The month with the least sunshine days is March (16.8 days).
Average UV index in December
Guinda, 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
Guinda, 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 4).
Average visibility in December
Guinda, 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).





