Herron Island, WA Climate


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Herron Island, WA enjoys a mild climate year-round with plentiful sunshine and moderate temperatures. Summers are generally warm and sunny, with temperatures rarely exceeding 75°F. Winters are cool and usually wet, with occasional snowfall in the colder months. Rainfall is abundant throughout the year, averaging around 40 inches annually. The island also receives plenty of sunshine during the summer months, making it a great place to enjoy the outdoors.

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Herron Island is 7.2 (10=best), which means it is more comfortable than most places in Washington.

9.2 Summer - 5.3 Winter
August, July and September are the most pleasant months in Herron Island, while December and January are the least comfortable months.

  ClimateHerron Island, WashingtonUnited States
  50.3 in.38.1 in.
  2.7 in.27.8 in.
  159.4 days106.2 days
  139 days205 days
  76.3°85.8°
  35.5°21.7°
  7.27
  2.64.3
  2211 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

August is the hottest month for Herron Island with an average high temperature of 76.6°, which ranks it as about average compared to other places in Washington. In Herron Island, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Herron Island are August, July and September.
In Herron Island, there are 3.3 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 Herron Island with an average of 34.7°. This is warmer than most places in Washington.
In Herron Island, there are 39.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.
In Herron Island, 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 in Herron Island is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are August, July and September.
November is the wettest month in Herron Island with 8.3 inches of rain, and the driest month is July with 0.8 inches. The wettest season is Spring with 42% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 50.3 inches in Herron Island means that it is wetter than most places in Washington.
November is the rainiest month in Herron Island with 20.6 days of rain, and August is the driest month with only 4.5 rainy days. There are 159.4 rainy days annually in Herron Island, which is about average compared to other places in Washington. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 12% chance of a rainy day.
An annual snowfall of 2.7 inches in Herron Island means that it is less snowy than most places in Washington. December is the snowiest month in Herron Island with 1.1 inches of snow, and 3 months of the year have significant snowfall.
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