Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Downieville marks the onset of January with an average high-temperature of a still chilly 45.7°F (7.6°C), subtly divergent from December's 43.7°F (6.5°C). Downieville usually reports an average low-temperature of 30.9°F (-0.6°C) during the month of January.Humidity
In Downieville, the average relative humidity in January is 73%.Rainfall
In Downieville, in January, during 6.3 rainfall days, 5.67" (144mm) of precipitation is typically accumulated. Throughout the year, there are 72.9 rainfall days, and 36.06" (916mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Downieville, in January, during 8.7 snowfall days, 29.37" (746mm) of snow is typically accumulated. Throughout the year, there are 53.3 snowfall days, and 151.57" (3850mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 46min.On the first day of January, sunrise is at 7:23 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:21 pm PST.
Sunshine
January has the least sunshine of the year, with an average of 5.6h 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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 2 in January suggests the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Downieville have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Downieville, CA
- Average high temperature in January: 45.7°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in January: 30.9°F
The month with the highest average low temperature is July (52.9°F).
The coldest month (with the lowest average low temperature) is December (29.1°F).
Average pressure in January
Downieville, CA
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Downieville, CA
- Average wind speed in January: 6mph
The windiest month (with the highest average wind speed) is February (6.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in January
Downieville, CA
- Average humidity in January: 73%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is July (39%).
Average rainfall in January
Downieville, CA
- Average rainfall in January: 5.67"
The wettest month (with the highest rainfall) is March (7.09").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in January
Downieville, CA
- Average rainfall days in January: 6.3 days
The month with the highest number of rainy days is April (11 days).
The month with the least rainy days is July (1.8 days).
Average snowfall in January
Downieville, CA
- Average snowfall in January: 29.37"
The month with the highest snowfall is March (37.6").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Downieville, CA
- Average snowfall days in January: 8.7 days
The month with the highest number of snowfall days is March (11.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Downieville, CA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 5h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in January
Downieville, CA
- Average sunshine days in January: 18.7 days
The month with the most sunshine days is July (28 days).
The month with the least sunshine days is March (12.6 days).
Average UV index in January
Downieville, 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, March, November and December (UV index 2).
Average cloud cover in January
Downieville, CA
- Average cloud cover in January: 37
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in January
Downieville, CA
- Average visibility in January: 5mi
The months with the highest visibility are May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March and April (5mi).
Downieville, California, USA
Weather forecast for your location
2. Allow the app to use your location