Keizer, OR Climate


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Keizer, OR has a mild climate with warm summers and cool winters. Average high temperatures in the summer reach up to around 90 degrees Fahrenheit, while average lows can dip to the mid-40s during the winter months. Annual precipitation in Keizer varies from year to year, but tends to hover around 39 inches on average. The area is known for its low humidity levels throughout the year and generally clear skies, making for pleasant outdoor conditions much of the time.

Keizer, Oregon gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Keizer averages 4 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 153 sunny days per year in Keizer. The US average is 205 sunny days.

Keizer gets some kind of precipitation, on average, 137 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 82 degrees
Winter Low: the January low is 34
Rain: averages 40 inches of rain a year
Snow: averages 4 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Keizer is 7.4 (10=best), which means it is more comfortable than most places in Oregon.

9.2 Summer - 5.5 Winter
July, August and September are the most pleasant months in Keizer, while December and January are the least comfortable months.

  ClimateKeizer, OregonUnited States
  40.3 in.38.1 in.
  3.7 in.27.8 in.
  136.7 days106.2 days
  153 days205 days
  82.1°85.8°
  34.3°21.7°
  7.47
  2.94.3
  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 Keizer with an average high temperature of 82.5°, which ranks it as about average compared to other places in Oregon. In Keizer, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Keizer are September, June and July.
In Keizer, there are 14.7 days annually when the high temperature is over 90°, which is about average compared to other places in Oregon.
December has the coldest nighttime temperatures for Keizer with an average of 33.8°. This is about average compared to other places in Oregon.
In Keizer, there are 49.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Oregon.
In Keizer, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Oregon.
Humidity in Keizer 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 June.
December is the wettest month in Keizer with 6.8 inches of rain, and the driest month is July with 0.5 inches. The wettest season is Spring with 44% of yearly precipitation and 6% occurs in Autumn, which is the driest season. The annual rainfall of 40.3 inches in Keizer means that it is about average compared to other places in Oregon.
November is the rainiest month in Keizer with 17.8 days of rain, and July is the driest month with only 2.6 rainy days. There are 136.7 rainy days annually in Keizer, which is about average compared to other places in Oregon. The rainiest season is Spring when it rains 36% of the time and the driest is Autumn with only a 9% chance of a rainy day.
An annual snowfall of 3.7 inches in Keizer means that it is about average compared to other places in Oregon. February is the snowiest month in Keizer with 1.7 inches of snow, and 3 months of the year have significant snowfall.
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