Zip 99135 (Hartline, WA) Climate

The climate in 99135 Hartline, WA is typically quite mild throughout the year. During the summer months, temperatures can reach up to around 80 degrees Fahrenheit, while evenings tend to be slightly cooler. Winter temperatures average around 40-45 degrees Fahrenheit, though it does get cold enough at times to snow. Overall, the climate is generally comfortable and pleasant throughout the year with only minor changes in temperature.

Hartline (zip 99135), Washington gets 12 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Hartline (zip 99135) averages 19 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 179 sunny days per year in Hartline (zip 99135). The US average is 205 sunny days.

Hartline (zip 99135) 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 87 degrees
Winter Low: the January low is 21
Rain: averages 12 inches of rain a year
Snow: averages 19 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 99135 zip code is 7.0 (10=best), which means it is less comfortable than most places in Washington.

9 Summer - 4.4 Winter

September, June and August are the most pleasant months in the 99135 zip code, while December and January are the least comfortable months.

Climate	Hartline, Washington	United States
	Unlock	38.1 in.
	19.3 in.	Unlock
	Unlock	106.2 days
	179 days	Unlock
	87.1°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	1922 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.

July is the hottest month for the 99135 zip code with an average high temperature of 87.1°, which ranks it as warmer than most places in Washington. In the 99135 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 99135 zip code are June, September and May.

In the 99135 zip code, there are 28.3 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

December has the coldest nighttime temperatures for the 99135 zip code with an average of 20.6°. This is one of the coldest places in Washington.

In the 99135 zip code, there are 143.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In the 99135 zip code, there are 2.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

Humidity is low in the 99135 zip code, 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 the 99135 zip code with 1.6 inches of rain, and the driest month is August with 0.3 inches. The wettest season is Spring with 34% of yearly precipitation and 16% occurs in Autumn, which is the driest season. The annual rainfall of 11.5 inches in the 99135 zip code means that it is drier than most places in Washington.

December is the rainiest month in the 99135 zip code with 11.0 days of rain, and August is the driest month with only 2.9 rainy days. There are 87.1 rainy days annually in the 99135 zip code, which is less rainy than most places in Washington. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 15% chance of a rainy day.

An annual snowfall of 19.3 inches in the 99135 zip code means that it is snowier than most places in Washington. December is the snowiest month in the 99135 zip code with 6.7 inches of snow, and 5 months of the year have significant snowfall.

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