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 snowfall in December
- Average snowfall 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, with its average high-temperature of 52.7°F (11.5°C) and an average low-temperature of 37.4°F (3°C), holds the record as the coldest month.Humidity
December is the most humid month, with an average relative humidity of 51%.Rainfall
The months with the most rainfall are February and December, with an average 0.63" (16mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Forest Falls, in December, snow falls for 2.4 days, with typically accumulated 2.48" (63mm) of snow. In Forest Falls, during the entire year, snow falls for 11.9 days and aggregates up to 15.83" (402mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:35 am and sunset at 4:38 pm. On the last day of December, sunrise is at 6:53 am and sunset at 4:48 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 in December translates into these instructions:
Heed the precautions - It is counselled to guard against solar damage. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What are the temperatures in December?
What is the most humid month?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Forest Falls have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Forest Falls, CA
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in December: 37.4°F
The month with the highest average low temperature is August (67.1°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).
Average pressure in December
Forest Falls, 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 (29.82"Hg).
Average wind speed in December
Forest Falls, CA
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is September (5.5mph).
Average humidity in December
Forest Falls, CA
- Average humidity in December: 51%
The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is August (30%).
Average rainfall in December
Forest Falls, CA
- Average rainfall in December: 0.63"
The wettest months (with the highest rainfall) are February and December (0.63").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Forest Falls, CA
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is July (4.1 days).
The month with the least rainy days is June (1.2 days).
Average snowfall in December
Forest Falls, CA
- Average snowfall in December: 2.48"
The month with the highest snowfall is April (3.82").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Forest Falls, CA
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Forest Falls, CA
- Average daylight in December: 9h and 5min
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: 7h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Forest Falls, CA
- Average sunshine days in December: 25.3 days
The month with the most sunshine days is October (28.6 days).
The month with the least sunshine days is February (23.7 days).
Average UV index in December
Forest Falls, 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
Forest Falls, CA
- Average cloud cover in December: 21
The month with the most cloud cover is December (Cloud cover 21).
The months with the least cloud cover are June, August and September (Cloud cover 6).
Average visibility in December
Forest Falls, 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).
Forest Falls, California, USA
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