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 is the coldest month, exhibiting average temperatures of 41.5°F (5.3°C) at the peak and 26.6°F (-3°C) at the base.Humidity
In December, the average relative humidity in Yreka is 81%.Rainfall
December is the month with the most rainfall. Rain falls for 12.8 days and accumulates 2.99" (76mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Yreka, in December, during 6.1 snowfall days, 4.13" (105mm) of snow is typically accumulated. Throughout the year, there are 30.9 snowfall days, and 20.47" (520mm) of snow is accumulated.Daylight
December has the shortest days of the year in Yreka, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:40 pm. On the last day of December, in Yreka, sunrise is at 7:37 am and sunset at 4:50 pm PST.
Sunshine
The months with the least sunshine in Yreka are January and December, with an average of 5.7h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the UV index of 2 transforms into the following advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What are the coldest months in Yreka?
How cold does it get in Yreka in December?
What is the average humidity in December in Yreka?
What is the wettest month in Yreka?
How much does it rain in Yreka in December?
How many days does it snow in December in Yreka?
What is the month with the shortest days in Yreka?
What is the average length of the day in December in Yreka?
When are sunrise and sunset in December in Yreka?
What is the month with the least sunshine in Yreka?
How many hours of sunshine does Yreka have in December?
When is the lowest UV index in Yreka?
How high is the UV index in December in Yreka?
Average temperature in December
Yreka, CA
- Average high temperature in December: 41.5°F
The warmest months (with the highest average high temperature) are July and August (84.2°F).
The month with the lowest average high temperature is December (41.5°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (26.6°F).
Average pressure in December
Yreka, CA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in December
Yreka, CA
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is March (5.4mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
Yreka, CA
- Average humidity in December: 81%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Yreka, CA
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Yreka, CA
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is March (16.7 days).
The month with the least rainy days is July (3.2 days).
Average snowfall in December
Yreka, CA
- Average snowfall in December: 4.13"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Yreka, CA
- Average snowfall days in December: 6.1 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Yreka, CA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 42min).
Average sunshine days in December
Yreka, CA
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11 days).
Average UV index in December
Yreka, CA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Yreka, CA
- Average cloud cover in December: 43
The months with the most cloud cover are March and December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in December
Yreka, CA
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).
Yreka, California, USA
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