December weather forecastPhilbrick Mill, CA
December
Weather in December
The first month of the winter, December, is also a fresh month in Philbrick Mill, California, with an average temperature varying between 37.4°F (3°C) and 53.6°F (12°C).Temperature
Philbrick Mill's December weather, marked by an average high temperature of 53.6°F (12°C) and an average low temperature of 37.4°F (3°C), is the coldest in the year.Humidity
The average relative humidity in December is 76%.Rainfall
The months with the most rainfall in Philbrick Mill are February and December, with an average 3.11" (79mm) of precipitation.Snowfall
January, March through December are months without snowfall in Philbrick Mill.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Philbrick Mill.On the first day of December, sunrise is at 7:14 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:01 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 5.3h of sunshine.UV index
In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 3 in December transforms into the following instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Philbrick Mill, CA
- Average high temperature in December: 53.6°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).
- Average low temperature in December: 37.4°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).
Average pressure in December
Philbrick Mill, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in December
Philbrick Mill, CA
- Average wind speed in December: 4.5mph
The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in December
Philbrick Mill, CA
- Average humidity in December: 76%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).
Average rainfall in December
Philbrick Mill, CA
- Average rainfall in December: 3.11"
The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in December
Philbrick Mill, CA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in December
Philbrick Mill, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Philbrick Mill, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Philbrick Mill, CA
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Philbrick Mill, CA
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).
Average UV index in December
Philbrick Mill, CA
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 2).
Average cloud cover in December
Philbrick Mill, CA
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
Philbrick Mill, CA
- Average visibility in December: 5mi
The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).





