December weather forecastHayfork, CA
December
Weather in December
December, the first month of the winter in Hayfork, is also a frosty month, with an average temperature varying between 46°F (7.8°C) and 30.2°F (-1°C).Temperature
With its high average temperature of 46°F (7.8°C) and a low of 30.2°F (-1°C), December is regarded as the coldest month.Humidity
The average relative humidity in December in Hayfork, California, is 80%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 4.17" (106mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Hayfork, in December, during 3.8 snowfall days, 5.08" (129mm) of snow is typically accumulated. In Hayfork, during the entire year, snow falls for 21.4 days and aggregates up to 28.74" (730mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:56 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 4.7h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hayfork, CA
- Average high temperature in December: 46°F
The warmest months (with the highest average high temperature) are July and August (86.5°F).
The month with the lowest average high temperature is December (46°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (51.1°F).
The coldest month (with the lowest average low temperature) is December (30.2°F).
Average pressure in December
Hayfork, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in December
Hayfork, CA
- Average wind speed in December: 4mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity in December
Hayfork, CA
- Average humidity in December: 80%
The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Hayfork, CA
- Average rainfall in December: 4.17"
The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Hayfork, CA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (2.3 days).
Average snowfall in December
Hayfork, CA
- Average snowfall in December: 5.08"
The month with the highest snowfall is February (7.52").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Hayfork, CA
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Hayfork, CA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 42min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Hayfork, CA
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is July (26 days).
The month with the least sunshine days is March (13.6 days).
Average UV index in December
Hayfork, CA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Hayfork, CA
- Average cloud cover in December: 51
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in December
Hayfork, CA
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are March and December (4mi).
