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
In January, Mammoth Lakes notes an average high-temperature of a still icy 35.6°F (2°C), hardly different from the preceding month. Throughout January, Mammoth Lakes experiences a low-temperature average of 16.5°F (-8.6°C).Humidity
In January, the average relative humidity is 72%.Rainfall
In Mammoth Lakes, in January, it is raining for 4.3 days, with typically 0.67" (17mm) of accumulated precipitation. In Mammoth Lakes, during the entire year, the rain falls for 47.7 days and collects up to 4.92" (125mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In January, it is snowing for 9.1 days. Throughout January, 4.21" (107mm) of snow is accumulated. Throughout the year, there are 60.8 snowfall days, and 28.58" (726mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 55min.On the first day of the month, sunrise is at 7:10 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:00 am and sunset at 5:18 pm PST.
Sunshine
The month with the least sunshine is January, with an average of 6.3h of sunshine.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 in January translates into this advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January?
What is the average humidity in January in Mammoth Lakes?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Mammoth Lakes have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Mammoth Lakes have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Mammoth Lakes, CA
- Average high temperature in January: 35.6°F
The warmest month (with the highest average high temperature) is July (73.4°F).
The month with the lowest average high temperature is February (34°F).
- Average low temperature in January: 16.5°F
The month with the highest average low temperature is July (48.2°F).
The coldest month (with the lowest average low temperature) is February (14.9°F).
Average pressure in January
Mammoth Lakes, CA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Mammoth Lakes, CA
- Average wind speed in January: 5.7mph
The windiest month (with the highest average wind speed) is March (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in January
Mammoth Lakes, CA
- Average humidity in January: 72%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (34%).
Average rainfall in January
Mammoth Lakes, CA
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is February (0.94").
The driest months (with the least rainfall) are August and October (0.08").
Average rainfall days in January
Mammoth Lakes, CA
- Average rainfall days in January: 4.3 days
The month with the highest number of rainy days is April (6.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in January
Mammoth Lakes, CA
- Average snowfall in January: 4.21"
The month with the highest snowfall is February (5.67").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Mammoth Lakes, CA
- Average snowfall days in January: 9.1 days
The month with the highest number of snowfall days is March (11.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Mammoth Lakes, CA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 6h and 2min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).
Average sunshine days in January
Mammoth Lakes, CA
- Average sunshine days in January: 21.7 days
The month with the most sunshine days is October (27.3 days).
The month with the least sunshine days is March (18.2 days).
Average UV index in January
Mammoth Lakes, CA
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in January
Mammoth Lakes, CA
- Average cloud cover in January: 29
The month with the most cloud cover is March (Cloud cover 30).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in January
Mammoth Lakes, 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).
Mammoth Lakes, California, USA
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