Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December is the coldest month, with the temperature often reaching an average high of 52.7°F (11.5°C) and an average low of 39.4°F (4.1°C).Humidity
The average relative humidity in December is 67%.Rainfall
In Stonyford, in December, during 10 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 71.4 rainfall days, and 14.02" (356mm) of precipitation is accumulated.Daylight
December has the shortest days of the year in Stonyford, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:11 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:57 pm PST.
Sunshine
December has the least sunshine of the year in Stonyford, California, with an average of 5.8h of sunshine.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 exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 3 in December suggests the following recommendations:
Be vigilant - Preventing sunburn is recommended. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What part of the year is the coldest in Stonyford?
What is the usual temperature for Stonyford in December?
What is the average humidity in December in Stonyford?
How much does it rain in Stonyford in December?
What is the month with the shortest days in Stonyford?
What is the average length of the day in December in Stonyford?
When are sunrise and sunset in December in Stonyford?
What is the month with the least sunshine in Stonyford?
How long on average sun shines in December in Stonyford?
What is the month with the lowest UV index in Stonyford?
What is the UV index reading in December in Stonyford?
Average temperature in December
Stonyford, CA
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is July (95.4°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in December: 39.4°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is December (39.4°F).
Average pressure in December
Stonyford, 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, July and August (29.91"Hg).
Average wind speed in December
Stonyford, CA
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Stonyford, CA
- Average humidity in December: 67%
The month with the highest relative humidity is March (69%).
The months with the lowest relative humidity are July, August and September (35%).
Average rainfall in December
Stonyford, CA
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is February (2.68").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in December
Stonyford, CA
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is July (1 days).
Average daylight in December /
Average sunshine in December
Stonyford, CA
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 5h and 5min
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 48min).
Average sunshine days in December
Stonyford, CA
- Average sunshine days in December: 20.1 days
The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (17 days).
Average UV index in December
Stonyford, 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
Stonyford, CA
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
Stonyford, 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).
Stonyford, California, USA
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