January weather forecastEtna, CA
January
Weather in January
January is a frosty winter month in Etna, California, with an average temperature varying between 28.2°F (-2.1°C) and 43.3°F (6.3°C).Temperature
Etna's shift into January is marked by a subtle change to a chilly 43.3°F (6.3°C) from December's 41.5°F (5.3°C) in temperature. Nighttime temperature lowers to an average of 28.2°F (-2.1°C) in January.Humidity
With an average relative humidity of 82%, January is the most humid month.Rainfall
In Etna, in January, during 12.6 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Etna, during the entire year, the rain falls for 116 days and collects up to 17.8" (452mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Etna, in January, during 5.4 snowfall days, 5.16" (131mm) of snow is typically accumulated. Throughout the year, there are 30.9 snowfall days, and 20.47" (520mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 35min.On the first day of the month, sunrise is at 7:37 am and sunset at 4:52 pm. On the last day of January, sunrise is at 7:24 am and sunset at 5:25 pm PST.
Sunshine
January and December, with an average of 5.7h of sunshine, are months with the least sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Etna, CA
- Average high temperature in January: 43.3°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 January: 28.2°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 January
Etna, CA
- Average pressure in January: 30.16"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 January
Etna, CA
- Average wind speed in January: 4.9mph
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 January
Etna, CA
- Average humidity in January: 82%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (52%).
Average rainfall in January
Etna, CA
- Average rainfall in January: 2.8"
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 January
Etna, CA
- Average rainfall days in January: 12.6 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 January
Etna, CA
- Average snowfall in January: 5.16"
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 January
Etna, CA
- Average snowfall days in January: 5.4 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 January /
Average sunshine in January
Etna, CA
- Average daylight in January: 9h and 36min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 5h and 42min
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 January
Etna, CA
- Average sunshine days in January: 15.8 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 January
Etna, CA
- Average UV index in January: 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 January
Etna, CA
- Average cloud cover in January: 41
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 January
Etna, CA
- Average visibility in January: 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).
