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
During the coldest month, January, temperatures average a high of 46.8°F (8.2°C) and a low of 29.8°F (-1.2°C).Humidity
January is the most humid month, with an average relative humidity of 59%.Rainfall
In Sun Valley, in January, during 5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. Throughout the year, there are 74.3 rainfall days, and 7.2" (183mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sun Valley are January through April, November and December. In Sun Valley, during January, snow falls for 2.9 days and regularly aggregates up to 1.54" (39mm) of snow. In Sun Valley, during the entire year, snow falls for 11.2 days and aggregates up to 5.98" (152mm) of snow.Daylight
The average length of the day in January is 10h and 7min.On the first day of January, sunrise is at 7:27 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:47 pm MST.
Sunshine
In January, the average sunshine is 6.9h.UV index
The average daily maximum UV index in January is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 3 during January translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the temperature in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in Sun Valley in January?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What is the UV index reading in January?
Average temperature in January
Sun Valley, AZ
- Average high temperature in January: 46.8°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (46.8°F).
- Average low temperature in January: 29.8°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure in January
Sun Valley, AZ
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).
Average wind speed in January
Sun Valley, AZ
- Average wind speed in January: 6.1mph
The windiest months (with the highest average wind speed) are April and May (10.6mph).
The calmest month (with the lowest average wind speed) is January (6.1mph).
Average humidity in January
Sun Valley, AZ
- Average humidity in January: 59%
The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is June (18%).
Average rainfall in January
Sun Valley, AZ
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is June (0.16").
Average rainfall days in January
Sun Valley, AZ
- Average rainfall days in January: 5 days
The month with the highest number of rainy days is July (13.3 days).
The months with the least rainy days are June and November (3.4 days).
Average snowfall in January
Sun Valley, AZ
- Average snowfall in January: 1.54"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Sun Valley, AZ
- Average snowfall days in January: 2.9 days
The month with the highest number of snowfall days is December (3.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sun Valley, AZ
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January: 6h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in January
Sun Valley, AZ
- Average sunshine days in January: 23.9 days
The months with the most sunshine days are May, June and November (25.3 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in January
Sun Valley, AZ
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in January
Sun Valley, AZ
- Average cloud cover in January: 22
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 9).
Average visibility in January
Sun Valley, AZ
- 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).
Sun Valley, Arizona, USA
Weather forecast for your location
2. Allow the app to use your location