Grass Valley, OR Climate


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United States / Oregon / No Metro Area / Sherman County / Grass Valley / Zip Codes
Grass Valley, Oregon has a moderate climate. The summers are generally warm with temperatures typically staying in the mid-70s to low 80s. The winters stay relatively mild with temperatures usually ranging from the high 30s to mid 40s. Rainfall is spread throughout the year and snow is rare. Overall, Grass Valley experiences a pleasant climate with four distinct seasons and plenty of sunshine.

Grass Valley, Oregon gets 16 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Grass Valley averages 15 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 201 sunny days per year in Grass Valley. The US average is 205 sunny days.

Grass Valley gets some kind of precipitation, on average, 87 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 84 degrees
Winter Low: the January low is 26
Rain: averages 16 inches of rain a year
Snow: averages 15 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Grass Valley is 7.3 (10=best), which means it is more comfortable than most places in Oregon.

9.3 Summer - 5.1 Winter
July, August and September are the most pleasant months in Grass Valley, while December and January are the least comfortable months.

  ClimateGrass Valley, OregonUnited States
  16.4 in.38.1 in.
  14.6 in.27.8 in.
  87.1 days106.2 days
  201 days205 days
  84.1°85.8°
  26.1°21.7°
  7.37
  34.3
  2257 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 Grass Valley with an average high temperature of 84.2°, which ranks it as warmer than most places in Oregon. In Grass Valley, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grass Valley are September, June and July.
In Grass Valley, there are 21.6 days annually when the high temperature is over 90°, which is hotter than most places in Oregon.
December has the coldest nighttime temperatures for Grass Valley with an average of 24.3°. This is colder than most places in Oregon.
In Grass Valley, there are 121.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Oregon.
In Grass Valley, there are 1.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oregon.
Humidity is low in Grass Valley, 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.
December is the wettest month in Grass Valley with 2.7 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 41% of yearly precipitation and 9% occurs in Autumn, which is the driest season. The annual rainfall of 16.4 inches in Grass Valley means that it is drier than most places in Oregon.
November is the rainiest month in Grass Valley with 11.2 days of rain, and August is the driest month with only 2.4 rainy days. There are 87.1 rainy days annually in Grass Valley, which is less rainy than most places in Oregon. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 12% chance of a rainy day.
An annual snowfall of 14.6 inches in Grass Valley means that it is snowier than most places in Oregon. December is the snowiest month in Grass Valley with 4.5 inches of snow, and 5 months of the year have significant snowfall.
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