Walnut Creek, California 

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Climate in Walnut Creek, California

Walnut Creek, California gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Walnut Creek averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 262 sunny days per year in Walnut Creek. The US average is 205 sunny days.

Walnut Creek gets some kind of precipitation, on average, 62 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 40
Rain: averages 20 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Walnut Creek is 8.5 (10=best), which means it is more comfortable than most places in California.

9.3 / 7.3

Summer   /   Winter
June, September and May are the most pleasant months in Walnut Creek, while January and December are the least comfortable months.

Climate Averages
  Walnut Creek, CaliforniaUnited States
  19.6 in.38.1 in.
  0.0 in.27.8 in.
  62.2 days106.2 days
  262 days205 days
  85.8°85.8°
  39.5°21.7°
  8.57
  5.44.3
  171 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 Walnut Creek with an average high temperature of 85.8°, which ranks it as cooler than most places in California. In Walnut Creek, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Walnut Creek are May, October and June.


January has the coldest nighttime temperatures for Walnut Creek with an average of 39.5°. This is warmer than most places in California.


In Walnut Creek, there are 36.5 days annually when the high temperature is over 90°, which is about average compared to other places in California.


In Walnut Creek, there are 9.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.


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


February is the wettest month in Walnut Creek with 3.9 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 58% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 19.6 inches in Walnut Creek means that it is about average compared to other places in California.


December is the rainiest month in Walnut Creek with 11.1 days of rain, and July is the driest month with only 0.1 rainy days. There are 62.2 rainy days annually in Walnut Creek, which is rainier than most places in California. The rainiest season is Spring when it rains 52% of the time and the driest is Autumn with only a 2% chance of a rainy day.


There is rarely any recorded snowfall in Walnut Creek, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Walnut Creek.





  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Walnut Creek    16 Reviews
    Best place to live in the San Francisco Bay Area - 9/25/2019
    Apart from the congestion, Walnut Creek is one of the best places in the San Francisco Bay Area to live. It is one of the most compact/walkable cities in the entire area... Read More

    Start Your Review of Walnut Creek


    Great water quality - 6/18/2018
    Almost all of Walnut Creek water comes from Pardee dam through an enclosed pipeline. That water is direct from the high Sierras. Among the best water quality in the... Read More

    So hot - 5/6/2018
    I grew up in Southern California and am no stranger to a more inland California climate. Before moving to WC I lived in San Francisco for 15 years where it is obviously... Read More


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