Katy, Texas 

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Climate in Katy, Texas

Katy, TX is known for its hot and humid climate. During the summer months, temperatures typically range from the high 80s to mid-90s with high humidity levels that can make it feel even warmer. The winters in Katy are mild with temperatures usually staying in the 50s and 60s. Precipitation levels are also quite high throughout the year, averaging around 48 inches of rainfall annually. This mild weather helps make Katy a great place to live all year round.

Katy, Texas gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.

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

On average, there are 208 sunny days per year in Katy. The US average is 205 sunny days.

Katy gets some kind of precipitation, on average, 87 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 43
Rain: averages 48 inches of rain a year
Snow: averages 0 inches of snow a year


The annual BestPlaces Comfort Index for Katy is 6.7 (10=best), which means it is less comfortable than most places in Texas.

2.5 / 8.2

Summer   /   Winter
April, October and March are the most pleasant months in Katy, while August and July are the least comfortable months.

Climate Averages
  Katy, TexasUnited States
  48.0 in.38.1 in.
  0.0 in.27.8 in.
  86.8 days106.2 days
  208 days205 days
  138 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.

August is the hottest month for Katy with an average high temperature of 94.6°, which ranks it as cooler than most places in Texas. In Katy, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Katy are April, October and November.

In Katy, there are 102.1 days annually when the high temperature is over 90°, which is hotter than most places in Texas.

January has the coldest nighttime temperatures for Katy with an average of 42.5°. This is warmer than most places in Texas.

In Katy, there are 9.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Texas.

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

Humidity in Katy can be stifling in the summer, but pleasant for most of the year. The most uncomfortably humid months are July, August and June. The humid season runs from May-September and the least humid months are October-April.

October is the wettest month in Katy with 4.8 inches of rain, and the driest month is February with 3.3 inches. The wettest season is Winter with 28% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 48.0 inches in Katy means that it is wetter than most places in Texas.

June is the rainiest month in Katy with 8.4 days of rain, and April is the driest month with only 5.2 rainy days. There are 86.8 rainy days annually in Katy, which is rainier than most places in Texas. The rainiest season is Spring when it rains 27% of the time and the driest is Summer with only a 22% chance of a rainy day.

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

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Katy    23 Reviews
    Katy Resident - 3/20/2021
    Lived here my entire life, Great... Read More

    Start Your Review of Katy

    Harmony Science Academy West Houston - 2/18/2016
    My kids has been it this school since it opened. It was great at first until they kept changing hands in principle. They had great plans but never get carried out. The... Read More

    Katy is wonderful place to live and work! - 6/8/2015
    I live in Katy since August 26, 2007. And I am so grateful to God that He blessed me by sending to live in Katy. It is much smaller than Houston, but the quality of life... Read More

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