2025 Compare Climate & Weather:
Sitka, AK vs Mammoth Lakes, CA

Highlights

On average, there are 275 sunny days per year in Mammoth Lakes. Sitka averages 84 sunny days per year. The US average is 205 sunny days.

Mammoth Lakes, California gets 14.9 inches of rain, on average, per year. Sitka, Alaska gets 119.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Mammoth Lakes averages 93.2 inches of snow per year. Sitka averages 44.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Mammoth Lakes, California
Summer High: the July high is around 77.5 degrees
Winter Low: the January low is 13.5
Rain: averages 14.9 inches of rain a year
Snow: averages 93.2 inches of snow a year

Sitka, Alaska
Summer High: the July high is around 61 degrees
Winter Low: the January low is 31.9
Rain: averages 119.8 inches of rain a year
Snow: averages 44.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Mammoth Lakes is 6.5 (10=best), which means it is one of the least comfortable places in California.

The annual BestPlaces Comfort Index for Sitka is 5.4 (10=best), which means it is more comfortable than most places in Alaska.

Today's Weather - Sitka, AK

46°F

Today's Weather - Mammoth Lakes, CA

41°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Sitka / Mammoth Lakes

August is the hottest month for Sitka with an average high temperature of 62.1°, which ranks it as cooler than most places in Alaska. In Sitka, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sitka are August, July and June.

July is the hottest month for Mammoth Lakes with an average high temperature of 77.5°, which ranks it as cooler than most places in California. In Mammoth Lakes, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mammoth Lakes are July, August and September.

February has the coldest nighttime temperatures for Sitka with an average of 31.7°. This is one of the warmest places in Alaska.

January has the coldest nighttime temperatures for Mammoth Lakes with an average of 13.5°. This is one of the coldest places in California.

In Sitka, there are 0.0 days annually when the high temperature is over 90°, which is about average compared to other places in Alaska.

In Mammoth Lakes, there are 0.1 days annually when the high temperature is over 90°, which is one of the coolest places in California.

In Sitka, there are 68.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Alaska.

In Mammoth Lakes, there are 229.4 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in California.

In Sitka, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Alaska.

In Mammoth Lakes, there are 10.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in California.

October is the wettest month in Sitka with 17.2 inches of rain, and the driest month is June with 3.8 inches. The wettest season is Winter with 38% of yearly precipitation and 13% occurs in Autumn, which is the driest season. The annual rainfall of 119.8 inches in Sitka means that it is one of the wettest places in Alaska.


February is the wettest month in Mammoth Lakes with 2.3 inches of rain, and the driest month is July with 0.5 inches. The wettest season is Spring with 45% of yearly precipitation and 11% occurs in Autumn, which is the driest season. The annual rainfall of 14.9 inches in Mammoth Lakes means that it is drier than most places in California.

October is the rainiest month in Sitka with 24.6 days of rain, and June is the driest month with only 15.2 rainy days. There are 235.8 rainy days annually in Sitka, which is one of the rainiest places in Alaska. The rainiest season is Winter when it rains 29% of the time and the driest is Autumn with only a 22% chance of a rainy day.

January is the rainiest month in Mammoth Lakes with 10.0 days of rain, and June is the driest month with only 4.1 rainy days. There are 77.0 rainy days annually in Mammoth Lakes, which is rainier than most places in California. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 16% chance of a rainy day.

An annual snowfall of 44.2 inches in Sitka means that it is one of the least snowy places in Alaska.

An annual snowfall of 93.2 inches in Mammoth Lakes means that it is one of the snowiest places in California.

January is the snowiest month in Sitka with 12.5 inches of snow, and 6 months of the year have significant snowfall.

March is the snowiest month in Mammoth Lakes with 21.1 inches of snow, and 10 months of the year have significant snowfall.