Mendocino County, CA Climate


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United States / California / Ukiah / Mendocino County / Cities / Zip Codes
Mendocino County, CA has a mild and temperate climate throughout the year, with cool, wet winters and warm, dry summers. Average annual precipitation is between 25 and 45 inches. The average low temperature in winter is around 35 degrees Fahrenheit, while the average high temperature in summer is around 70 degrees Fahrenheit. Rainfall is most common during the winter months while thunderstorms can occur during the spring and fall. Summers are generally dry and hot, making Mendocino County an ideal place for outdoor activities like hiking or biking in the nearby redwood forests.

Mendocino County, California gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Mendocino County averages 1 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 216 sunny days per year in Mendocino County. The US average is 205 sunny days.

Mendocino County gets some kind of precipitation, on average, 90 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 86 degrees
Winter Low: the January low is 37
Rain: averages 45 inches of rain a year
Snow: averages 1 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Mendocino County is 7.8 (10=best), which means it is less comfortable than most places in California.

8.6 Summer - 6.5 Winter
June, May and September are the most pleasant months in Mendocino County, while December and January are the least comfortable months.

  ClimateMendocino, CaliforniaUnited States
  44.9 in.38.1 in.
  1.0 in.27.8 in.
  89.9 days106.2 days
  216 days205 days
  85.7°85.8°
  36.7°21.7°
  7.87
  5.24.3
  1768 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 Mendocino County with an average high temperature of 85.7°, which ranks it as cooler than most places in California. In Mendocino County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mendocino County are June, September and October.
In Mendocino County, there are 45.4 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 Mendocino County with an average of 36.2°. This is colder than most places in California.
In Mendocino County, there are 34.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.
In Mendocino 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 in Mendocino County 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 July, August and June.
December is the wettest month in Mendocino County with 8.8 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 54% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 44.9 inches in Mendocino County means that it is one of the wettest places in California.
December is the rainiest month in Mendocino County with 14.1 days of rain, and July is the driest month with only 0.6 rainy days. There are 89.9 rainy days annually in Mendocino County, which is one of the rainiest places in California. The rainiest season is Spring when it rains 45% of the time and the driest is Autumn with only a 4% chance of a rainy day.
An annual snowfall of 1.0 inches in Mendocino County means that it is snowier than most places in California. February is the snowiest month in Mendocino County with 0.3 inches of snow, and no months of the year have significant snowfall.
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