October weather forecast and climate
Mammoth Lakes, CA

Perfect water reflections of trees, rocks, and distant mountains in the clear water of Mammoth Lakes, California
Perfect water reflections of trees, rocks, and distant mountains in the clear water of Mammoth Lakes, California

Weather in October

October, the same as September, is a cool autumn month in Mammoth Lakes, California, with average temperature fluctuating between 31.8°F (-0.1°C) and 55.2°F (12.9°C).

Temperature

In Mammoth Lakes, the average high-temperature decreases, from a comfortable 65.8°F (18.8°C) in September, to a cool 55.2°F (12.9°C). In October, in Mammoth Lakes, the average low-temperature is 31.8°F (-0.1°C).

Humidity

In October, the average relative humidity is 46%.

Rainfall

Months with the least rainfall in Mammoth Lakes are August and October Rain falls for 2.2 days and accumulates 0.08" (2mm) of rain.

Snowfall

Months with snowfall in Mammoth Lakes are January through June, September through December. In Mammoth Lakes, during October, snow falls for 2.2 days and regularly aggregates up to 0.28" (7mm) of snow. Throughout the year, in Mammoth Lakes, there are 60.8 snowfall days, and 28.58" (726mm) of snow is accumulated.

Daylight

In Mammoth Lakes, the average length of the day in October is 11.2h.

Sunshine

The average sunshine in October is 8.1h.

UV index

Months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In October, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in October in Mammoth Lakes?

The average high-temperature, in October, in Mammoth Lakes, is 55.2°F (12.9°C), while the average low-temperature is 31.8°F (-0.1°C).

What is the average humidity in October in Mammoth Lakes?

In October, the average relative humidity is 46%.

How much does it rain in Mammoth Lakes in October?

In Mammoth Lakes, during October, the rain falls for 2.2 days and regularly aggregates up to 0.08" (2mm) of precipitation.

What is the driest month in Mammoth Lakes?

Months with the least rainfall are August and October Rain falls for 2.2 days and accumulates 0.08" (2mm) of rain.

How much does it snow in Mammoth Lakes in October?

In Mammoth Lakes, during October, snow falls for 2.2 days and regularly aggregates up to 0.28" (7mm) of snow.

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

The average length of the day in October in Mammoth Lakes is 11.2h.

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

In October, the average sunshine in Mammoth Lakes is 8.1h.

When is the lowest UV index in Mammoth Lakes?

Months with the lowest UV index in Mammoth Lakes, California, are January through April, October through December, with an average maximum UV index of 2.

What is the UV index intensity in October in Mammoth Lakes?

In Mammoth Lakes, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in October
Mammoth Lakes, CA

Average temperature in October - Mammoth Lakes, CA
  • Average high temperature in October: 55.2°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 October: 31.8°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).

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Average pressure in October
Mammoth Lakes, CA

Average pressure in October - Mammoth Lakes, CA
  • Average pressure in October: 30.01"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.89").

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Average wind speed in October
Mammoth Lakes, CA

Average wind speed in October - Mammoth Lakes, CA
  • Average wind speed in October: 5.3mph

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).

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Average humidity in October
Mammoth Lakes, CA

Average humidity in October - Mammoth Lakes, CA
  • Average humidity in October: 46%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (34%).

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Average rainfall in October
Mammoth Lakes, CA

Average rainfall in October - Mammoth Lakes, CA
  • Average rainfall in October: 0.08"

The wettest month (with the highest rainfall) is February (0.94").
The driest months (with the least rainfall) are August and October (0.08").

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Average rainfall days in October
Mammoth Lakes, CA

Average rainfall days in October - Mammoth Lakes, CA
  • Average rainfall days in October: 2.2 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).

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Average snowfall in October
Mammoth Lakes, CA

Average snowfall in October - Mammoth Lakes, CA
  • Average snowfall in October: 0.28"

The month with the highest snowfall is February (5.67").
Months with the least snowfall are July and August (0").

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Average snowfall days in October
Mammoth Lakes, CA

Average snowfall days in October - Mammoth Lakes, CA
  • Average snowfall days in October: 2.2 days

The month with the highest number of snowfall days is March (11.3 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in October /
Average sunshine in October
Mammoth Lakes, CA

Average daylight in October / Average sunshine in October - Mammoth Lakes, CA
  • Average daylight in October: 11.2h

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

  • Average sunshine in October: 8.1h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 6.3h).

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Average sunshine days in October
Mammoth Lakes, CA

Average sunshine days in October - Mammoth Lakes, CA
  • Average sunshine days in October: 27.3 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).

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Average UV index in October
Mammoth Lakes, CA

Average UV index in October - Mammoth Lakes, CA
  • Average UV index in October: 2

Months with the highest UV index are June and July (UV index 5).
Months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in October
Mammoth Lakes, CA

Average cloud cover in October - Mammoth Lakes, CA
  • Average cloud cover in October: 11

The month with the most cloud cover is March (Cloud cover 30).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in October
Mammoth Lakes, CA

Average visibility in October - Mammoth Lakes, CA
  • Average visibility in October: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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