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
In Shasta, the lowest average temperatures are observed in December, with a high of 50.9°F (10.5°C) and a low of 36.7°F (2.6°C).Humidity
In Shasta, the average relative humidity in December is 71%.Rainfall
In December, the rain falls for 11.8 days. Throughout December, 2.95" (75mm) of precipitation is accumulated. Throughout the year, in Shasta, there are 92.2 rainfall days, and 20.16" (512mm) of precipitation is accumulated.Snowfall
February, March and December are months with snowfall in Shasta, California. December is the month with the most snowfall. Snow falls for 0.2 days and accumulates 0.31" (8mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Shasta.On the first day of the month, sunrise is at 7:15 am and sunset at 4:43 pm. On the last day of December, in Shasta, sunrise is at 7:33 am and sunset at 4:53 pm PST.
Sunshine
The month with the least sunshine in Shasta is December, with an average of 5.5h of sunshine.UV index
In Shasta, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 3 suggests this advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What month is the coldest in Shasta?
What are the temperatures in Shasta in December?
What is the average humidity in December in Shasta?
How many days does it rain in December in Shasta?
What is the snowiest month in Shasta?
When does it start snowing in Shasta?
What is the month with the shortest days in Shasta?
How many hours of daylight does Shasta have in December?
When is the sunrise / sunset in December in Shasta?
What is the month with the least sunshine in Shasta?
How long on average sun shines in December in Shasta?
What is the UV index intensity in December in Shasta?
Average temperature in December
Shasta, CA
- Average high temperature in December: 50.9°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (50.9°F).
- Average low temperature in December: 36.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is December (36.7°F).
Average pressure in December
Shasta, CA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in December
Shasta, CA
- Average wind speed in December: 4.5mph
The windiest months (with the highest average wind speed) are March and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.3mph).
Average humidity in December
Shasta, CA
- Average humidity in December: 71%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is August (33%).
Average rainfall in December
Shasta, CA
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is March (3.94").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Shasta, CA
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in December
Shasta, CA
- Average snowfall in December: 0.31"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Shasta, CA
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Shasta, CA
- Average daylight in December: 9h and 2min
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: 5h and 3min
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 30min).
Average sunshine days in December
Shasta, CA
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (13.5 days).
Average UV index in December
Shasta, CA
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in December
Shasta, CA
- Average cloud cover in December: 39
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in December
Shasta, 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).
Shasta, California, USA
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