Siskiyou County, CA Climate

Siskiyou County is located in the far north of California and it experiences a Mediterranean climate. Summers are generally hot and dry with temperatures reaching the mid-90s, while winters are mild and wet with occasional snowfall in the higher elevations. There is plenty of sunshine throughout the year, with an average of 298 sunny days per year. Siskiyou also receives abundant precipitation, averaging over 40 inches per year throughout much of the county. The area can experience extreme weather conditions such as thunderstorms, high winds, hail, and even occasional tornadoes in some areas. Despite its harsh weather conditions, Siskiyou County is a great place to live or visit thanks to its beautiful landscape and wide variety of outdoor activities.

Siskiyou County, California gets 29 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Siskiyou County averages 24 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 230 sunny days per year in Siskiyou County. The US average is 205 sunny days.

Siskiyou County gets some kind of precipitation, on average, 88 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 89 degrees
Winter Low: the January low is 27
Rain: averages 29 inches of rain a year
Snow: averages 24 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Siskiyou County is 7.2 (10=best), which means it is one of the least comfortable places in California.

8.6 Summer - 5.3 Winter

June, September and May are the most pleasant months in Siskiyou County, while December and January are the least comfortable months.

Climate	Siskiyou, California	United States
	29.0 in.	38.1 in.
	24.0 in.	27.8 in.
	87.8 days	106.2 days
	230 days	205 days
	89.2°	85.8°
	26.5°	21.7°
	7.2	7
	3.2	4.3
	4251 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.

July is the hottest month for Siskiyou County with an average high temperature of 89.2°, which ranks it as about average compared to other places in California. In Siskiyou County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Siskiyou County are June, September and May.

In Siskiyou County, there are 40.1 days annually when the high temperature is over 90°, which is about average compared to other places in California.

December has the coldest nighttime temperatures for Siskiyou County with an average of 26.3°. This is one of the coldest places in California.

In Siskiyou County, there are 129.5 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in California.

In Siskiyou County, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in California.

Humidity is low in Siskiyou County, 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 Siskiyou County with 5.3 inches of rain, and the driest month is August with 0.3 inches. The wettest season is Spring with 48% of yearly precipitation and 5% occurs in Autumn, which is the driest season. The annual rainfall of 29.0 inches in Siskiyou County means that it is wetter than most places in California.

December is the rainiest month in Siskiyou County with 12.3 days of rain, and August is the driest month with only 1.9 rainy days. There are 87.8 rainy days annually in Siskiyou County, which is one of the rainiest places in California. The rainiest season is Spring when it rains 40% of the time and the driest is Autumn with only a 9% chance of a rainy day.

An annual snowfall of 24.0 inches in Siskiyou County means that it is one of the snowiest places in California. December is the snowiest month in Siskiyou County with 7.0 inches of snow, and 6 months of the year have significant snowfall.

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