Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 44°F | 65°F | 53°F | 3.7" |
February | 48°F | 69°F | 57°F | 2.3" |
March | 54°F | 75°F | 64°F | 3.5" |
April | 61°F | 81°F | 70°F | 4.7" |
May | 68°F | 87°F | 76°F | 6.5" |
June | 73°F | 93°F | 82°F | 3.8" |
July | 75°F | 94°F | 83°F | 5.2" |
August | 75°F | 95°F | 84°F | 6.9" |
September | 71°F | 90°F | 79°F | 3.5" |
October | 61°F | 84°F | 71°F | 4.6" |
November | 53°F | 75°F | 63°F | 2.5" |
December | 47°F | 67°F | 56°F | 3.1" |
Index | Katy | Texas | National |
Air quality index | 52 | 52 | 42 |
Pollution index | 1,253,710 | 2,009,300 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 171 |
Days with moderate air quality | 163 |
Days w/ poor A.Q. for sensitive groups | 26 |
Days with unhealthy air quality | 4 |
Pollutant | Total |
Arsenic | 0.003% |
Benzene | 0.040% |
Carbon Tetrachloride | 0.001% |
Lead | 0.010% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Orchard, TX | 166 | 52 | 4.0% |
Weston Lakes, TX | 3,846 | 52 | 4.0% |
Meadows Place, TX | 4,899 | 52 | 4.0% |
Richmond, TX | 12,592 | 52 | 4.0% |
Brazos Country, TX | 619 | 52 | 4.0% |
Katy, TX | 20,296 | 52 | 4.0% |
City | Population | Air Quality Index | National Avg. |
Libertyville, IL | 20,300 | 39 | 22.0% |
Ashland, OH | 20,304 | 41 | 18.0% |
Bayou Cane, LA | 20,307 | 41 | 18.0% |
Warrensburg, MO | 20,313 | 47 | 6.0% |
Rolla, MO | 20,273 | 39 | 22.0% |
Katy, TX | 20,296 | 52 | 4.0% |