Climate and monthly weather forecast
Katy, TX

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Weather in January

January, the same as December, is another refreshing winter month in Katy, Texas, with an average temperature fluctuating between 45°F (7.2°C) and 61°F (16.1°C). January is the coldest month, with the temperature often reaching an average high of 61°F (16.1°C) and an average low of 45°F (7.2°C). Weather in January »

Weather in February

February, the last month of the winter in Katy, is also an enjoyable month, with an average temperature ranging between min 49.1°F (9.5°C) and max 64.9°F (18.3°C). February's arrival brings an average high-temperature of a still comfortable 64.9°F (18.3°C), slightly deviating from January's 61°F (16.1°C). Weather in February »

Weather in March

March, the first month of the spring in Katy, is an agreeable month, with an average temperature fluctuating between 71.8°F (22.1°C) and 55°F (12.8°C). March's arrival sees a mild rise in the average high-temperature, transitioning from February's comfortable 64.9°F (18.3°C) to an agreeable 71.8°F (22.1°C). Weather in March »

Weather in April

April is a warm spring month in Katy, Texas, with an average temperature fluctuating between 78.6°F (25.9°C) and 60.4°F (15.8°C). The shift into April is accompanied by a modest temperature increase, with the average high-temperature edging up from an agreeable 71.8°F (22.1°C) in March to a warm 78.6°F (25.9°C). Weather in April »

Weather in May

May, the last month of the spring in Katy, is also a moderately hot month, with temperature in the range of an average high of 85.5°F (29.7°C) and an average low of 68°F (20°C). As Katy, Texas, welcomes May, the average high-temperature displays a subtle shift, adjusting from a warm 78.6°F (25.9°C) in April to a still moderately hot 85.5°F (29.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a tropical month in Katy, Texas, with an average temperature ranging between min 73.8°F (23.2°C) and max 91°F (32.8°C). The average high-temperature mildly increases in June, edging from a moderately hot 85.5°F (29.7°C) in May to a hot 91°F (32.8°C). Weather in June »

Weather in July

July, the same as June, in Katy, Texas, is another tropical summer month, with an average temperature fluctuating between 75°F (23.9°C) and 93.2°F (34°C). In July, Katy's weather conditions record an average high-temperature of a still tropical 93.2°F (34°C), demonstrating little divergence from the preceding month. Weather in July »

Weather in August

August, the last month of the summer in Katy, is another tropical month, with an average temperature ranging between min 75.7°F (24.3°C) and max 94.6°F (34.8°C). During the warmest month, August, temperatures average a high of 94.6°F (34.8°C) and a low of 75.7°F (24.3°C). For August, the heat index is calculated to be a blazing hot 122°F (50°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a hot month in Katy, Texas, with an average temperature fluctuating between 88.7°F (31.5°C) and 71.8°F (22.1°C). During the shift to September, Katy records a mild decrease in average high-temperature, moving from 94.6°F (34.8°C) in August to a still hot 88.7°F (31.5°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Katy, Texas, with an average temperature varying between 80.8°F (27.1°C) and 62.4°F (16.9°C). October brings a slight decrease in temperature, down from a tropical 88.7°F (31.5°C) in September to a moderately hot 80.8°F (27.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Katy, is another pleasant month, with an average temperature fluctuating between 70.2°F (21.2°C) and 53.6°F (12°C). The beginning of November involves a decrease in the average high-temperature, transitioning from a moderately hot 80.8°F (27.1°C) in October to an agreeable 70.2°F (21.2°C). Weather in November »

Weather in December

The first month of the winter, December, is still a refreshing month in Katy, Texas, with an average temperature ranging between max 62.6°F (17°C) and min 47.8°F (8.8°C). In December, the average high-temperature marginally decreases from an agreeable 70.2°F (21.2°C) in November to an enjoyable 62.6°F (17°C). Weather in December »
Updated: Feb 14, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What time of the year is the coldest in Katy?

During the coldest month in Katy, January, temperatures average a high of 61°F (16.1°C) and a low of 45°F (7.2°C).

How much does it rain in Katy?

In Katy, Texas, during the entire year, the rain falls for 169 days and collects up to 30.12" (765mm) of precipitation.

When does it snow in Katy?

January and December are months with snowfall in Katy.

How many days does it snow in Katy?

In Katy, Texas, during the entire year, snow falls for 0.8 days and aggregates up to 0.2" (5mm) of snow.

What are the most humid months in Katy?

The months with the highest humidity in Katy are February and March, with an average relative humidity of 78%.

What is the driest month in Katy?

The month with the least rainfall in Katy, Texas, is February, when the rain falls for 11.2 days and typically collects 1.42" (36mm) of precipitation.

When it does not snow in Katy?

February through November are months without snowfall in Katy, Texas.

When is Daylight Saving Time (DST) in Katy?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Katy, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Katy?

May is the month with the most rainfall. Rain falls for 13.8 days and accumulates 4.29" (109mm) of precipitation.

What are the months with the highest UV index in Katy?

May through August, with an average maximum UV index of 7, are months with the highest UV index.

When are the longest days in Katy?

With an average of 14h and 0min of daylight, June has the longest days of the year.

What is the warmest month in Katy?

In Katy, August is known for its average highest temperatures, reaching a high of 94.6°F (34.8°C) and a low of 75.7°F (24.3°C).

What are the least humid months in Katy?

The months with the lowest humidity in Katy are August and October, with an average relative humidity of 71%.

What month has the most sunshine in Katy?

With an average of 10.2h of sunshine, August has the most sunshine of the year.

What is the snowiest month in Katy?

December is the month with the most snowfall in Katy. Snow falls for 0.2 days and accumulates 0.12" (3mm) of snow.

What is the month with the shortest days in Katy?

December has the shortest days of the year in Katy, with an average of 10h and 18min of daylight.

What is the month with the least sunshine in Katy?

With an average of 4.9h of sunshine, December has the least sunshine of the year in Katy.

What is the month with the lowest UV index in Katy?

December is the month with the lowest UV index, with an average maximum UV index of 3.

Average pressure
Katy, TX

Average pressure - Katy, TX

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Katy, TX

Average wind speed - Katy, TX

The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).

Average humidity
Katy, TX

Average humidity - Katy, TX

The months with the highest relative humidity are February and March (78%).
The months with the lowest relative humidity are August and October (71%).

Average rainfall
Katy, TX

Average rainfall - Katy, TX

The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is February (1.42").

Average rainfall days
Katy, TX

Average rainfall days - Katy, TX

The month with the highest number of rainy days is September (18.8 days).
The month with the least rainy days is January (10.5 days).

Average snowfall
Katy, TX

Average snowfall - Katy, TX

The month with the highest snowfall is December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days
Katy, TX

Average snowfall days - Katy, TX

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight / Average sunshine
Katy, TX

Average daylight / Average sunshine - Katy, TX

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days
Katy, TX

Average sunshine days - Katy, TX

The month with the most sunshine days is January (18.7 days).
The month with the least sunshine days is September (8.9 days).

Average visibility
Katy, TX

Average visibility - Katy, TX

The months with the highest visibility are January, February, March, June, August, September, October, November and December (6mi).
The months with the lowest visibility are April, May and July (5mi).

Katy, Texas, USA

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