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
With the arrival of January, Alta's average high-temperature registers at a still chilly 45.7°F (7.6°C), indicating a subtle variation from the previous month. During January, the average low-temperature is recorded at a freezing cold 30.9°F (-0.6°C).Humidity
In January, the average relative humidity is 73%.Rainfall
In Alta, in January, it is raining for 6.3 days, with typically 5.67" (144mm) of accumulated precipitation. In Alta, during the entire year, the rain falls for 72.9 days and collects up to 36.06" (916mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Alta, in January, during 8.7 snowfall days, 29.37" (746mm) of snow is typically accumulated. In Alta, during the entire year, snow falls for 53.3 days and aggregates up to 151.57" (3850mm) of snow.Daylight
The average length of the day in January is 9h and 47min.On the first day of January, sunrise is at 7:22 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:22 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 5.6h of sunshine.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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during January translates into these guidelines:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature?
What is the average humidity in January in Alta?
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?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Alta have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Alta, 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
Alta, 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
Alta, 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
Alta, 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
Alta, 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
Alta, 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
Alta, 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
Alta, 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
Alta, 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 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
Alta, 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
Alta, 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
Alta, 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
Alta, 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).
Alta, California, USA
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