December weather forecastValinda, CA
December
Weather in December
December, the first month of the winter in Valinda, is still a refreshing month, with an average temperature ranging between min 47.3°F (8.5°C) and max 63.5°F (17.5°C).Temperature
December, marked by an average high-temperature of 63.5°F (17.5°C) and a low-temperature of 47.3°F (8.5°C), is the coldest month.Humidity
In Valinda, the average relative humidity in December is 51%.Rainfall
The month with the most rainfall in Valinda is December, when the rain falls for 5.9 days and typically aggregates up to 1.73" (44mm) of precipitation.Snowfall
December is the only month when snow falls in Valinda. December has the most snowfall days of the year in Valinda. Snow falls for 0.1 days.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:39 am and sunset at 4:42 pm. On the last day of December, sunrise is at 6:57 am and sunset at 4:53 pm PST.
Sunshine
The months with the least sunshine are February and December, with an average of 6.9h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Valinda. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 4 suggests these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Valinda, CA
- Average high temperature in December: 63.5°F
The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is December (63.5°F).
- Average low temperature in December: 47.3°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (47.3°F).
Average pressure in December
Valinda, 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 (29.88"Hg).
Average wind speed in December
Valinda, CA
- Average wind speed in December: 5.1mph
The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest months (with the lowest average wind speed) are September and October (4.5mph).
Average humidity in December
Valinda, CA
- Average humidity in December: 51%
The months with the highest relative humidity are May and June (57%).
The month with the lowest relative humidity is November (46%).
Average rainfall in December
Valinda, CA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is December (1.73").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Valinda, CA
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (1.3 days).
Average snowfall days in December
Valinda, 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
Valinda, 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 54min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in December
Valinda, CA
- Average sunshine days in December: 23.9 days
The month with the most sunshine days is June (28 days).
The month with the least sunshine days is February (21.6 days).
Average UV index in December
Valinda, CA
- Average UV index in December: 4
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in December
Valinda, CA
- Average cloud cover in December: 22
The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Valinda, 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).
