Stanislaus County, CA Climate


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United States / California / Modesto / Stanislaus County / Cities / Zip Codes
Stanislaus County has a Mediterranean climate type, characterized by warm-to-hot summers and mild-to-cool winters. Rainfall is generally low throughout the year but increases during the winter months when temperatures drop. Summers are typically dry with little to no precipitation. Average high temperatures in the summer are in the 80s and 90s, with lows falling into the 50s and 60s. Winter temperatures range from highs in the mid-50s to lows around freezing. Generally, Stanislaus County experiences hot, dry summers and mild, wet winters, making it a perfect place to experience all four seasons.

Stanislaus County, California gets 13 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Stanislaus County averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 261 sunny days per year in Stanislaus County. The US average is 205 sunny days.

Stanislaus County gets some kind of precipitation, on average, 56 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 95 degrees
Winter Low: the January low is 39
Rain: averages 13 inches of rain a year
Snow: averages 0 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Stanislaus County is 8.2 (10=best), which means it is about average compared to other places in California.

8 Summer - 7.4 Winter
May, October and April are the most pleasant months in Stanislaus County, while January and December are the least comfortable months.

  ClimateStanislaus, CaliforniaUnited States
  13.4 in.38.1 in.
  0.0 in.27.8 in.
  55.8 days106.2 days
  261 days205 days
  94.8°85.8°
  38.8°21.7°
  8.27
  5.14.3
  501 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 Stanislaus County with an average high temperature of 94.8°, which ranks it as warmer than most places in California. In Stanislaus County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Stanislaus County are October, April and May.
In Stanislaus County, there are 85.0 days annually when the high temperature is over 90°, which is hotter than most places in California.
December has the coldest nighttime temperatures for Stanislaus County with an average of 38.4°. This is about average compared to other places in California.
In Stanislaus County, there are 13.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.
In Stanislaus 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 Stanislaus 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 August, July and September.
January is the wettest month in Stanislaus County with 2.7 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 13.4 inches in Stanislaus County means that it is drier than most places in California.
January is the rainiest month in Stanislaus County with 9.9 days of rain, and July is the driest month with only 0.1 rainy days. There are 55.8 rainy days annually in Stanislaus County, which is about average compared to other places in California. The rainiest season is Spring when it rains 51% of the time and the driest is Autumn with only a 2% chance of a rainy day.
There is rarely any recorded snowfall in Stanislaus County, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Stanislaus County.
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