October weather forecastMammoth Lakes, CA
October
Weather in October
The weather in Mammoth Lakes cools down in October, providing real fall vibes with average high temperatures down to 55.2°F (12.9°C). October is considered autumn's peak, presenting a picturesque vista adorned with fall colors. The city is bustling with autumn lovers cherishing the crisp air and vibrant colors. October calls for cozy attire and indulging in warm beverages. This month is perfect for appreciating the calmer side of Mammoth Lakes.Temperature
With October's onset, the weather shows a temperature decrease, transitioning from a comfortable 65.8°F (18.8°C) in September to a cool 55.2°F (12.9°C). Mammoth Lakes, during the nights of October, registers a substantial plunge from the daytime high, averaging at a freezing cold 31.8°F (-0.1°C).Humidity
In October, the average relative humidity is 46%.Rainfall
The months with the least rainfall are August and October Rain falls for 2.2 days and accumulates 0.08" (2mm) of rain.Snowfall
Months with snowfall 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. In Mammoth Lakes, during the entire year, snow falls for 60.8 days and aggregates up to 28.58" (726mm) of snow.Daylight
In Mammoth Lakes, the average length of the day in October is 11h and 12min.On the first day of the month, sunrise is at 6:52 am and sunset at 6:38 pm. On the last day of October, sunrise is at 7:20 am and sunset at 5:58 pm PDT.
Sunshine
The average sunshine in October is 8.1h.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 minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 in October translates into these instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure in October
Mammoth Lakes, CA
- Average pressure in October: 30.01"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 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).
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%).
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").
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).
Average snowfall in October
Mammoth Lakes, CA
- Average snowfall in October: 0.28"
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 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).
The months with the least snowfall days are July and August (0 days).
Average daylight in October /
Average sunshine in October
Mammoth Lakes, CA
- Average daylight in October: 11h and 12min
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 October: 8h and 6min
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 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).
Average UV index in October
Mammoth Lakes, CA
- Average UV index in October: 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 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).
Average visibility in October
Mammoth Lakes, CA
- Average visibility in October: 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).
