Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 27°F | 41°F | 34°F | 3.2" |
February | 28°F | 45°F | 36°F | 1.5" |
March | 36°F | 53°F | 44°F | 4.2" |
April | 46°F | 65°F | 55°F | 4.4" |
May | 56°F | 73°F | 64°F | 1.8" |
June | 65°F | 82°F | 73°F | 4.5" |
July | 70°F | 86°F | 77°F | 6.8" |
August | 67°F | 83°F | 74°F | 1.2" |
September | 62°F | 78°F | 69°F | 4.8" |
October | 51°F | 68°F | 58°F | 1.2" |
November | 39°F | 56°F | 47°F | 1.1" |
December | 32°F | 47°F | 39°F | 0.4" |
Index | Houston | Delaware | National |
Air quality index | 42 | 41 | 42 |
Pollution index | 1,358,370 | 7,274,307 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 293 |
Days with moderate air quality | 72 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.002% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Milton, DE | 2,993 | 36 | 28.0% |
Greenwood, DE | 1,127 | 36 | 28.0% |
Ellendale, DE | 751 | 36 | 28.0% |
Bridgeville, DE | 3,508 | 36 | 28.0% |
Farmington, DE | 184 | 36 | 28.0% |
Houston, DE | 449 | 42 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Seville, CA | 449 | 66 | 32.0% |
Victor, CO | 449 | 16 | 68.0% |
Humeston, IA | 449 | 39 | 22.0% |
Waveland, IN | 449 | 45 | 10.0% |
Galien, MI | 449 | 39 | 22.0% |
Houston, DE | 449 | 42 | 16.0% |