Mammoth Lakes
California, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Mammoth Lakes, CA

The ever-scenic and perfect water reflections in the clear water of trees, rocks, and distant mountains in Mammoth Lakes, California
The ever-scenic and perfect water reflections in the clear water of trees, rocks, and distant mountains in Mammoth Lakes, California
January, like December, in Mammoth Lakes, California, is another cold winter month, with average temperature ranging between max 40.1°F (4.5°C) and min 14.7°F (-9.6°C).

Temperature

The coldest month is January, with an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 14.7°F (-9.6°C).

Rainfall

January is the month with the most rainfall in Mammoth Lakes, California. Rain falls for 9 days and accumulates 4.6" (116.8mm) of precipitation.

Snowfall

Months with snowfall are January through June, October through December.

Daylight

The average length of the day in Mammoth Lakes is 9.9h.

Sunshine

The average sunshine in January is 7h.

UV index

In January, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for average individuals.
The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the coldest month in Mammoth Lakes?

January is the coldest month in Mammoth Lakes, California, with an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 14.7°F (-9.6°C).

What is the temperature in January in Mammoth Lakes?

In January, in Mammoth Lakes, California, the average high-temperature is 40.1°F (4.5°C), and the average low-temperature is 14.7°F (-9.6°C).

How many days does it rain in January in Mammoth Lakes?

In Mammoth Lakes, in January, it is raining for 9 days, with typically 4.6" (116.8mm) of accumulated precipitation.

What is the rainiest month in Mammoth Lakes?

January is the month with the most rainfall in Mammoth Lakes, California. Rain falls for 9 days and accumulates 4.6" (116.8mm) of precipitation.

How much does it snow in Mammoth Lakes in January?

During January, Mammoth Lakes regularly aggregates up to 43.1" (1094.7mm) of snow.

How many hours of daylight does Mammoth Lakes have in January?

In January, the average length of the day in Mammoth Lakes, California, is 9.9h.

How many hours of sunshine does Mammoth Lakes have in January?

In January, the average sunshine is 7h.

What is the UV index reading in January in Mammoth Lakes?

In Mammoth Lakes, California, the average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in January - Mammoth Lakes, CA
  • Average high temperature in January: 40.1°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in January: 14.8°F

The month with the highest average low temperature is July (45.3°F).
The coldest month (with the lowest average low temperature) is January (14.8°F).

Average rainfall in January - Mammoth Lakes, CA
  • Average rainfall in January: 4.6"

The wettest month (with the highest rainfall) is January (4.6").
The driest month (with the lowest rainfall) is August (0.3").

Average rainfall days in January - Mammoth Lakes, CA
  • Average rainfall days in January: 9 days

Months with the highest number of rainy days are January and February (9 days).
Months with the lowest number of rainy days are August and September (2 days).

Average snowfall in January - Mammoth Lakes, CA
  • Average snowfall in January: 43.1"

The month with the highest snowfall is December (45.3").
Months with the lowest snowfall are July, August and September (0").

Average daylight in January / Average sunshine in January - Mammoth Lakes, CA
  • Average daylight in January: 9.9h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in January: 7h

The month with most sunshine is July (Average sunshine: 12h).
The month with least sunshine is December (Average sunshine: 6h).

Average UV index in January - Mammoth Lakes, CA
  • Average UV index in January: 3

Months with the highest UV index are June and July (UV index 11).
The month with the lowest UV index is December (UV index 2).