January weather forecastSun Valley, CA
January
Weather in January
January, the same as December, is another comfortable winter month in Sun Valley, California, with an average temperature varying between 63.5°F (17.5°C) and 47.5°F (8.6°C).Temperature
Sun Valley's January average high-temperature settles at a still enjoyable 63.5°F (17.5°C), showing a near match with the preceding month. During January, Sun Valley witnesses a consistent average low-temperature of 47.5°F (8.6°C).Humidity
In Sun Valley, the average relative humidity in January is 52%.Rainfall
In January, the rain falls for 4.1 days. Throughout January, 0.94" (24mm) of precipitation is accumulated. In Sun Valley, during the entire year, the rain falls for 40.1 days and collects up to 5.87" (149mm) of precipitation.Daylight
In January, the average length of the day is 10h and 11min.On the first day of the month, sunrise is at 6:59 am and sunset at 4:54 pm. On the last day of January, sunrise is at 6:51 am and sunset at 5:22 pm PST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 6.9h of sunshine.UV index
The average daily maximum UV index in January is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 4 during January morphs into the following directions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Sun Valley, CA
- Average high temperature in January: 63.5°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in January: 47.5°F
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).
Average pressure in January
Sun Valley, CA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Sun Valley, CA
- Average wind speed in January: 5.7mph
The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in January
Sun Valley, CA
- Average humidity in January: 52%
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (48%).
Average rainfall in January
Sun Valley, CA
- Average rainfall in January: 0.94"
The wettest month (with the highest rainfall) is December (1.18").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in January
Sun Valley, CA
- Average rainfall days in January: 4.1 days
The month with the highest number of rainy days is March (5.2 days).
The month with the least rainy days is June (1 days).
Average daylight in January /
Average sunshine in January
Sun Valley, CA
- Average daylight in January: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January: 6h and 54min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in January
Sun Valley, CA
- Average sunshine days in January: 25.9 days
The month with the most sunshine days is October (27.1 days).
The month with the least sunshine days is February (22.9 days).
Average UV index in January
Sun Valley, CA
- Average UV index in January: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
Sun Valley, CA
- Average cloud cover in January: 20
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in January
Sun Valley, CA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
