2025 Compare Climate & Weather:
Olympia, WA vs Ketchikan, AK

Highlights

On average, there are 100 sunny days per year in Ketchikan. Olympia averages 136 sunny days per year. The US average is 205 sunny days.

Ketchikan, Alaska gets 141 inches of rain, on average, per year. Olympia, Washington gets 52.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Ketchikan averages 27.1 inches of snow per year. Olympia averages 6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Ketchikan, Alaska
Summer High: the July high is around 64.6 degrees
Winter Low: the January low is 30.7
Rain: averages 141 inches of rain a year
Snow: averages 27.1 inches of snow a year

Olympia, Washington
Summer High: the July high is around 77.1 degrees
Winter Low: the January low is 33.9
Rain: averages 52.7 inches of rain a year
Snow: averages 6 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Ketchikan is 5.6 (10=best), which means it is one of the most pleasant places in Alaska.

The annual BestPlaces Comfort Index for Olympia is 7.1 (10=best), which means it is about average compared to other places in Washington.

Today's Weather - Olympia, WA

49°F

Today's Weather - Ketchikan, AK

45°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Olympia / Ketchikan

August is the hottest month for Olympia with an average high temperature of 78.0°, which ranks it as about average compared to other places in Washington. In Olympia, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Olympia are August, July and September.

August is the hottest month for Ketchikan with an average high temperature of 64.9°, which ranks it as about average compared to other places in Alaska. In Ketchikan, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ketchikan are August, July and June.

December has the coldest nighttime temperatures for Olympia with an average of 32.9°. This is about average compared to other places in Washington.

January has the coldest nighttime temperatures for Ketchikan with an average of 30.7°. This is one of the warmest places in Alaska.

In Olympia, there are 5.7 days annually when the high temperature is over 90°, which is about average compared to other places in Washington.

In Ketchikan, there are 0.1 days annually when the high temperature is over 90°, which is hotter than most places in Alaska.

In Olympia, there are 61.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.

In Ketchikan, there are 75.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Alaska.

In Olympia, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.

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

November is the wettest month in Olympia with 9.0 inches of rain, and the driest month is July with 0.8 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 52.7 inches in Olympia means that it is wetter than most places in Washington.


October is the wettest month in Ketchikan with 19.5 inches of rain, and the driest month is July with 5.9 inches. The wettest season is Winter with 36% of yearly precipitation and 15% occurs in Autumn, which is the driest season. The annual rainfall of 141.0 inches in Ketchikan means that it is one of the wettest places in Alaska.

November is the rainiest month in Olympia with 21.0 days of rain, and July is the driest month with only 4.8 rainy days. There are 167.2 rainy days annually in Olympia, which is rainier than most places in Washington. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 11% chance of a rainy day.

October is the rainiest month in Ketchikan with 24.2 days of rain, and June is the driest month with only 15.6 rainy days. There are 233.7 rainy days annually in Ketchikan, 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 20% chance of a rainy day.

An annual snowfall of 6.0 inches in Olympia means that it is about average compared to other places in Washington.

An annual snowfall of 27.1 inches in Ketchikan means that it is one of the least snowy places in Alaska.

February is the snowiest month in Olympia with 2.3 inches of snow, and 4 months of the year have significant snowfall.

December is the snowiest month in Ketchikan with 6.5 inches of snow, and 6 months of the year have significant snowfall.