Katy climate

Typical historical weather for Katy, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Katy.

Annual average

21.7°C

across all months

Warmest month

34.5°C

Aug average high

Coolest month

7°C

Jan average low

Annual rainfall

1292mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

42.7°C

27 August 2023

Coldest day

-13.4°C

16 February 2021

Wettest day

148.4mm

27 August 2017

Windiest day

8.6m/s

28 August 2017