Trinity County, CA Climate

Trinity County, CA has a subarctic climate with warm summers and cold winters. The summer season is usually dry and warm with temperatures ranging from the high 50s to high 90s. Winter is much cooler, with lows often dropping below freezing and average snowfall of 15 inches each year. Year-round precipitation is low, however, rain does fall in the winter months; making it wetter than most other parts of California. Trinity County's elevation also plays a role in its climate, as higher elevations tend to be cooler than lower ones. Despite these colder temperatures, this rural area is known for its natural beauty and makes an excellent choice for outdoor activities throughout all four seasons.

Trinity County, California gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Trinity County averages 11 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 219 sunny days per year in Trinity County. The US average is 205 sunny days.

Trinity County gets some kind of precipitation, on average, 96 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 91 degrees
Winter Low: the January low is 32
Rain: averages 43 inches of rain a year
Snow: averages 11 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Trinity County is 7.3 (10=best), which means it is less comfortable than most places in California.

8 Summer - 5.7 Winter

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

Climate	Trinity, California	United States
	43.4 in.	38.1 in.
	11.0 in.	27.8 in.
	96.4 days	106.2 days
	219 days	205 days
	91.3°	85.8°
	32.2°	21.7°
	7.3	7
	4.8	4.3
	3787 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 Trinity County with an average high temperature of 91.3°, which ranks it as about average compared to other places in California. In Trinity County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Trinity County are May, June and October.

In Trinity County, there are 59.6 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 Trinity County with an average of 32.0°. This is colder than most places in California.

In Trinity County, there are 75.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Trinity County, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

Humidity is low in Trinity 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 Trinity County with 8.6 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 51% of yearly precipitation and 3% occurs in Autumn, which is the driest season. The annual rainfall of 43.4 inches in Trinity County means that it is one of the wettest places in California.

January is the rainiest month in Trinity County with 14.2 days of rain, and July is the driest month with only 1.4 rainy days. There are 96.4 rainy days annually in Trinity County, which is one of the rainiest places in California. The rainiest season is Spring when it rains 42% of the time and the driest is Autumn with only a 7% chance of a rainy day.

An annual snowfall of 11.0 inches in Trinity County means that it is snowier than most places in California. December is the snowiest month in Trinity County with 3.1 inches of snow, and 6 months of the year have significant snowfall.

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