January weather forecastRound Mountain, CA
January
Weather in January
January, the same as December, in Round Mountain, California, is a frosty winter month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 45.1°F (7.3°C).Temperature
Entering January, Round Mountain's average high-temperature reads a still chilly 45.1°F (7.3°C), indicating a close resemblance to the previous month's climate. The temperature dips to an average of 29.7°F (-1.3°C) during January nights.Humidity
January and March, with an average relative humidity of 79%, are the most humid months.Rainfall
In Round Mountain, in January, it is raining for 11.2 days, with typically 3.74" (95mm) of accumulated precipitation. In Round Mountain, during the entire year, the rain falls for 105 days and collects up to 24.69" (627mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Round Mountain. In Round Mountain, in January, snow falls for 6.8 days, with typically accumulated 10.35" (263mm) of snow. In Round Mountain, California, during the entire year, snow falls for 36.7 days and aggregates up to 43.62" (1108mm) of snow.Daylight
The average length of the day in January is 9h and 39min.On the first day of the month, sunrise is at 7:31 am and sunset at 4:50 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:23 pm PST.
Sunshine
The average sunshine in January is 5.8h.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 of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. To protect against the Sun's most potent rays, avoid direct exposure around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Round Mountain, CA
- Average high temperature in January: 45.1°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in January: 29.7°F
The month with the highest average low temperature is July (53.1°F).
The coldest month (with the lowest average low temperature) is December (27.9°F).
Average pressure in January
Round Mountain, CA
- Average pressure in January: 30.18"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in January
Round Mountain, CA
- Average wind speed in January: 5.2mph
The windiest month (with the highest average wind speed) is March (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in January
Round Mountain, CA
- Average humidity in January: 79%
The months with the highest relative humidity are January and March (79%).
The months with the lowest relative humidity are July and August (40%).
Average rainfall in January
Round Mountain, CA
- Average rainfall in January: 3.74"
The wettest month (with the highest rainfall) is March (4.45").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in January
Round Mountain, CA
- Average rainfall days in January: 11.2 days
The month with the highest number of rainy days is April (14.5 days).
The month with the least rainy days is August (2.3 days).
Average snowfall in January
Round Mountain, CA
- Average snowfall in January: 10.35"
The month with the highest snowfall is March (10.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Round Mountain, CA
- Average snowfall days in January: 6.8 days
The month with the highest number of snowfall days is March (8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Round Mountain, 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 18min).
- Average sunshine in January: 5h and 48min
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 42min).
Average sunshine days in January
Round Mountain, CA
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is August (26 days).
The month with the least sunshine days is March (11.3 days).
Average UV index in January
Round Mountain, CA
- Average UV index in January: 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 January
Round Mountain, CA
- Average cloud cover in January: 37
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 6).
Average visibility in January
Round Mountain, CA
- Average visibility in January: 5mi
The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).





