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
The onset of January notes an average high-temperature of a still cold 38.8°F (3.8°C), subtly shifted from December's 37°F (2.8°C). Truckee's nights in January cool down to an average low-temperature of 23.4°F (-4.8°C).Humidity
In January, the average relative humidity is 79%.Rainfall
In Truckee, in January, during 5.8 rainfall days, 4.02" (102mm) of precipitation is typically accumulated. Throughout the year, there are 60 rainfall days, and 24.41" (620mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In January, in Truckee, it is snowing for 11.9 days. Throughout January, 24.88" (632mm) of snow is accumulated. Throughout the year, there are 82.8 snowfall days, and 146.89" (3731mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 47min.On the first day of January, sunrise is at 7:20 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:19 pm PST.
Sunshine
The average sunshine in January is 5.9h.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 minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 2 suggests this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in January?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Truckee have in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Truckee, CA
- Average high temperature in January: 38.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in January: 23.4°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).
Average pressure in January
Truckee, CA
- Average pressure in January: 30.18"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Truckee, CA
- Average wind speed in January: 5.7mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Truckee, CA
- Average humidity in January: 79%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall in January
Truckee, CA
- Average rainfall in January: 4.02"
The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is August (0.12").
Average rainfall days in January
Truckee, CA
- Average rainfall days in January: 5.8 days
The month with the highest number of rainy days is May (8.9 days).
The month with the least rainy days is July (2.4 days).
Average snowfall in January
Truckee, CA
- Average snowfall in January: 24.88"
The month with the highest snowfall is March (30.35").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Truckee, CA
- Average snowfall days in January: 11.9 days
The month with the highest number of snowfall days is March (16.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Truckee, 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 30min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in January
Truckee, CA
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is March (12.8 days).
Average UV index in January
Truckee, CA
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Truckee, CA
- Average cloud cover in January: 36
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in January
Truckee, CA
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Truckee, California, USA
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