Rochester, WA Climate


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United States / Washington / Olympia-Lacey-Tumwater Metro Area / Thurston County / Rochester / Zip Codes
Rochester, WA has a mild climate with warm summers and cool winters. The average high temperature during the summer months is in the mid 70s, while the average low temperature during the winter months is in the upper 30s. Due to its location near the Pacific Ocean, Rochester experiences frequent rainfall throughout the year. In addition to this, snowfall is present in moderate amounts during most winters. Overall, Rochester enjoys mild temperatures throughout all four seasons with ample precipitation for its lush vegetation and thriving wildlife.

Rochester, Washington gets 51 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Rochester averages 6 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 136 sunny days per year in Rochester. The US average is 205 sunny days.

Rochester gets some kind of precipitation, on average, 160 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 78 degrees
Winter Low: the January low is 35
Rain: averages 51 inches of rain a year
Snow: averages 6 inches of snow a year

Bestplaces Comfort Index

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

9.1 Summer - 5.2 Winter
July, August and September are the most pleasant months in Rochester, while December and January are the least comfortable months.

  ClimateRochester, WashingtonUnited States
  50.6 in.38.1 in.
  5.7 in.27.8 in.
  159.6 days106.2 days
  136 days205 days
  77.8°85.8°
  34.6°21.7°
  7.27
  2.64.3
  141 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 Rochester with an average high temperature of 78.7°, which ranks it as about average compared to other places in Washington. 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 July, August and September.
In Rochester, there are 6.3 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 Rochester with an average of 33.5°. This is about average compared to other places in Washington.
In Rochester, there are 56.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.
In Rochester, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.
Humidity in Rochester 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 Rochester with 8.6 inches of rain, and the driest month is July with 0.7 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 50.6 inches in Rochester means that it is wetter than most places in Washington.
November is the rainiest month in Rochester with 20.3 days of rain, and July is the driest month with only 4.4 rainy days. There are 159.6 rainy days annually in Rochester, 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 11% chance of a rainy day.
An annual snowfall of 5.7 inches in Rochester means that it is about average compared to other places in Washington. February is the snowiest month in Rochester with 2.3 inches of snow, and 4 months of the year have significant snowfall.
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Edward · Rochester, WA
My Home
Over 14 years ago

I live in a rural community just south of Olympia Washington called Rochester. I was born and raised in Los Angeles, California and boy what a difference. I love it  More

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