Arcata, CA Climate


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United States / California / Eureka-Arcata Metro Area / Humboldt County / Arcata / Zip Codes
Arcata, CA is located in the heart of Humboldt County on the Northern California coast and has a mild climate. The summers here are mild and sunny with temperatures ranging from 65°F to 75°F. Winters in Arcata are cool with temperatures between 35°F and 45°F. Rainfall averages about 40 inches per year, but there is rarely snow. The area experiences very little humidity, making it a comfortable place to live year round.

Arcata, California gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 175 sunny days per year in Arcata. The US average is 205 sunny days.

Arcata gets some kind of precipitation, on average, 124 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 65 degrees
Winter Low: the January low is 41
Rain: averages 46 inches of rain a year
Snow: averages 1 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Arcata is 7.6 (10=best), which means it is less comfortable than most places in California.

8.6 Summer - 6.6 Winter
August, July and September are the most pleasant months in Arcata, while January and December are the least comfortable months.

  ClimateArcata, CaliforniaUnited States
  46.0 in.38.1 in.
  0.5 in.27.8 in.
  123.6 days106.2 days
  175 days205 days
  64.6°85.8°
  40.9°21.7°
  7.67
  54.3
  23 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.

September is the hottest month for Arcata with an average high temperature of 65.7°, which ranks it as one of the coolest places in California. In Arcata, there are 0 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Arcata are September, August and July.
In Arcata, there are 0.2 days annually when the high temperature is over 90°, which is one of the coolest places in California.
December has the coldest nighttime temperatures for Arcata with an average of 40.3°. This is warmer than most places in California.
In Arcata, there are 10.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.
In Arcata, 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 Arcata 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 June.
December is the wettest month in Arcata with 8.8 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Spring with 50% of yearly precipitation and 3% occurs in Autumn, which is the driest season. The annual rainfall of 46.0 inches in Arcata means that it is one of the wettest places in California.
December is the rainiest month in Arcata with 17.0 days of rain, and July is the driest month with only 2.3 rainy days. There are 123.6 rainy days annually in Arcata, which is one of the rainiest places in California. The rainiest season is Spring when it rains 39% of the time and the driest is Autumn with only a 8% chance of a rainy day.
An annual snowfall of 0.5 inches in Arcata means that it is snowier than most places in California. February is the snowiest month in Arcata with 0.3 inches of snow, and no months of the year have significant snowfall.
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Sammy · Arcata, CA
Do not move here if you want to raise a family
Over 3 years ago

Pros: Nature hikes Cons: One of highest crime rates in the nation. Opioid epidemic going on (you’ll regularly witness drug deals and ppl doing drugs) No  More

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That · Eureka, CA
Cold, cloudy, wet, remote
Over 7 years ago

It takes a special set of preferences to select Arcata. Is this you? - You love clouds and fog. You are happy if you see the sun maybe 10-20 times a year. - Chilly  More

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Genevieve · Arcata, CA
Humboldt's best town
Over 10 years ago

I've lived in Humboldt for over 30 yrs and know all the areas well. Arcata is the jewel of Humboldt due to having a university and many liberal creative people. There is  More

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