Katy, TX Weather & Climate Normals
What a normal year in Katy actually looks like
On the 30-year record NOAA keeps for Katy, TX, the comfort score comes out to 60/100, mild with real seasons: A solid stretch of comfortable months alongside a noticeable but not extreme summer or winter. Only 6 months a year land in the 55–75°F range this site treats as mild.
How much Katy's weather actually swings
Average temperatures in Katy run from 55°F in Jan up to 85°F in Jul, a 30.6°F seasonal swing, a middling gap by national standards.
Katy, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 64°F | 45°F | 3.63in |
| Feb | 68°F | 50°F | 2.83in |
| Mar | 74°F | 55°F | 3.49in |
| Apr | 80°F | 60°F | 4.26in |
| May | 87°F | 69°F | 5.24in |
| Jun | 92°F | 74°F | 4.22in |
| Jul | 95°F | 76°F | 4.16in |
| Aug | 94°F | 76°F | 5.27in |
| Sep | 90°F | 72°F | 4.42in |
| Oct | 83°F | 62°F | 4.65in |
| Nov | 74°F | 53°F | 3.78in |
| Dec | 67°F | 46°F | 3.76in |
If you're timing a visit, Feb, Mar, Apr, Oct, Nov, and Dec are Katy's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet Katy actually gets
Katy averages 49.71in of precipitation a year across roughly 119 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Katy against the rest of the country
Out of 4876 cities scored here, Katy comes in at 520; within TX alone it ranks 29 of 384. Population is about 27,741.
Checking the actual forecast
These figures come from Houston Sugarland Mem, TX US, the NOAA station 16.1 miles from Katy, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is