Modesto, CA 

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Climate in Modesto, CA

Modesto, CA has a Mediterranean climate with hot summers and cool winters. The temperatures in summer typically range from the mid-80s to the low 100s, while winter temperatures tend to stay between the mid-30s and mid-50s. On average, over 200 days of sunshine can be expected each year in Modesto. Rainfall is generally light throughout the year, with most of it occurring during the cooler months of October through April. Snowfall is rare but does occur on occasion in the colder months. Overall, Modesto enjoys mild temperatures year round with plenty of sunshine.

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

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

On average, there are 260 sunny days per year in Modesto. The US average is 205 sunny days.

Modesto 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 94 degrees
Winter Low: the January low is 39
Rain: averages 13 inches of rain a year
Snow: averages 0 inches of snow a year


The annual BestPlaces Comfort Index for Modesto is 8.3 (10=best), which means it is more comfortable than most places in California.

8.2 / 7.4

Summer   /   Winter
October, May and April are the most pleasant months in Modesto, while January and December are the least comfortable months.

Climate Averages
  Modesto, CaliforniaUnited States
  12.9 in.38.1 in.
  0.0 in.27.8 in.
  55.8 days106.2 days
  260 days205 days
  89 ft.2443 ft.


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 Modesto with an average high temperature of 93.8°, which ranks it as warmer than most places in California. In Modesto, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Modesto are October, May and April.

In Modesto, there are 78.6 days annually when the high temperature is over 90°, which is hotter than most places in California.

December has the coldest nighttime temperatures for Modesto with an average of 38.6°. This is about average compared to other places in California.

In Modesto, there are 10.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Modesto, 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 Modesto 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 September.

January is the wettest month in Modesto with 2.5 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 12.9 inches in Modesto means that it is drier than most places in California.

January is the rainiest month in Modesto with 9.7 days of rain, and July is the driest month with only 0.1 rainy days. There are 55.8 rainy days annually in Modesto, 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 Modesto, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Modesto.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Modesto    35 Reviews
    idk - 6/19/2021
    I was born and raised here (still currently live here) and there are some nice areas and not so nice areas. I really think we need to improve our community and create... Read More

    Start Your Review of Modesto

    Decent - 4/30/2021
    It's fine. Lived here for over 10 years. Here's my breakdown. CONS: Crime rate: mostly on the westside, unless you live in better developed areas. Summer weather:... Read More

    In A Teen's Perspective... - 11/5/2020
    I know this website is probably only for adults, which I am not, but I thought perhaps adults would like to hear a kid's perspective of things, you know, if any adult... Read More

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