Zip 97123 (Hillsboro, OR) Climate

The climate in 97123 Hillsboro, OR is generally temperate and mild. During the summer months, temperatures can reach into the 80s Fahrenheit (27-29 Celsius) with low humidity. Winters tend to be cool with occasional rain showers and temperatures typically stay in the 40s Fahrenheit (4-7 Celsius). The area receives about 33 inches of precipitation per year, mostly from rainfall but occasionally from snowfall as well. Overall, this area has a comfortable climate that is perfect for outdoor activities all year round.

Hillsboro (zip 97123), Oregon gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Hillsboro (zip 97123) averages 3 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 143 sunny days per year in Hillsboro (zip 97123). The US average is 205 sunny days.

Hillsboro (zip 97123) gets some kind of precipitation, on average, 156 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 81 degrees
Winter Low: the January low is 37
Rain: averages 39 inches of rain a year
Snow: averages 3 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 97123 zip code is 7.5 (10=best), which means it is more comfortable than most places in Oregon.

9.3 Summer - 5.6 Winter

July, August and September are the most pleasant months in the 97123 zip code, while December and January are the least comfortable months.

Climate	Hillsboro, Oregon	United States
	Unlock	38.1 in.
	3.3 in.	Unlock
	Unlock	106.2 days
	143 days	Unlock
	80.8°	85.8°
	Unlock	21.7°
	7.5	Unlock
	Unlock	4.3
	200 ft.	Unlock

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 the 97123 zip code with an average high temperature of 81.8°, which ranks it as cooler than most places in Oregon. In the 97123 zip code, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 97123 zip code are September, July and August.

In the 97123 zip code, there are 13.2 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

December has the coldest nighttime temperatures for the 97123 zip code with an average of 35.8°. This is warmer than most places in Oregon.

In the 97123 zip code, there are 31.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In the 97123 zip code, 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 the 97123 zip code 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.

December is the wettest month in the 97123 zip code with 6.3 inches of rain, and the driest month is July with 0.7 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 39.1 inches in the 97123 zip code means that it is about average compared to other places in Oregon.

November is the rainiest month in the 97123 zip code with 20.2 days of rain, and August is the driest month with only 3.4 rainy days. There are 155.5 rainy days annually in the 97123 zip code, which is rainier than most places in Oregon. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 11% chance of a rainy day.

An annual snowfall of 3.3 inches in the 97123 zip code means that it is about average compared to other places in Oregon. December is the snowiest month in the 97123 zip code with 1.4 inches of snow, and 3 months of the year have significant snowfall.

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