Climate in Index, Washington

Index, Washington gets 73 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Index averages 17 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 161 sunny days per year in Index. The US average is 205 sunny days.

Index gets some kind of precipitation, on average, 184 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 76 degrees
Winter Low: the January low is 34
Rain: averages 73 inches of rain a year
Snow: averages 17 inches of snow a year

BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Index is 6.9 (10=best), which means it is less comfortable than most places in Washington.

August is the hottest month for Index with an average high temperature of 76.8°, which ranks it as about average compared to other places in Washington. In Index, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Index are August, July and September.

In Index, there are 3.4 days annually when the high temperature is over 90°, which is about average compared to other places in Washington.

December has the coldest nighttime temperatures for Index with an average of 32.7°. This is about average compared to other places in Washington.

In Index, there are 54.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.

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

Humidity is low in Index, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.

November is the wettest month in Index with 12.1 inches of rain, and the driest month is July with 1.7 inches. The wettest season is Spring with 35% of yearly precipitation and 10% occurs in Autumn, which is the driest season. The annual rainfall of 73.1 inches in Index means that it is wetter than most places in Washington.

November is the rainiest month in Index with 20.9 days of rain, and August is the driest month with only 6.7 rainy days. There are 183.7 rainy days annually in Index, which is one of the rainiest places in Washington. The rainiest season is Spring when it rains 30% of the time and the driest is Autumn with only a 15% chance of a rainy day.

An annual snowfall of 17.3 inches in Index means that it is snowier than most places in Washington. December is the snowiest month in Index with 5.8 inches of snow, and 5 months of the year have significant snowfall.

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