2025 Compare Climate & Weather:
Rochester, NY vs Ketchikan, AK

Highlights

On average, there are 100 sunny days per year in Ketchikan. Rochester averages 165 sunny days per year. The US average is 205 sunny days.

Ketchikan, Alaska gets 141 inches of rain, on average, per year. Rochester, New York gets 33.4 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. Rochester averages 77.3 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

Rochester, New York
Summer High: the July high is around 81.5 degrees
Winter Low: the January low is 17.3
Rain: averages 33.4 inches of rain a year
Snow: averages 77.3 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 Rochester is 6.6 (10=best), which means it is about average compared to other places in New York.

Today's Weather - Rochester, NY

46°F

Today's Weather - Ketchikan, AK

50°F

Average Monthly High / Low (°F)

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

July is the hottest month for Rochester with an average high temperature of 81.5°, which ranks it as about average compared to other places in New York. In Rochester, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rochester are June, August and July.

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.

January has the coldest nighttime temperatures for Rochester with an average of 17.3°. This is about average compared to other places in New York.

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

In Rochester, there are 5.8 days annually when the high temperature is over 90°, which is about average compared to other places in New York.

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

In Rochester, there are 131.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New York.

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 Rochester, there are 4.4 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in New York.

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.

September is the wettest month in Rochester with 3.4 inches of rain, and the driest month is February with 1.7 inches. The wettest season is Autumn with 30% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 33.4 inches in Rochester means that it is one of the driest places in New York.


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.

January is the rainiest month in Rochester with 15.4 days of rain, and August is the driest month with only 10.0 rainy days. There are 141.5 rainy days annually in Rochester, which is rainier than most places in New York. The rainiest season is Spring when it rains 29% of the time and the driest is Autumn with only a 22% 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 77.3 inches in Rochester means that it is snowier than most places in New York.

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

January is the snowiest month in Rochester with 22.3 inches of snow, and 6 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.