| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 66°F | 51°F | 2.5" |
| February | 44°F | 71°F | 55°F | 1.6" |
| March | 48°F | 76°F | 61°F | 5.3" |
| April | 59°F | 84°F | 70°F | 5.6" |
| May | 65°F | 88°F | 76°F | 15.7" |
| June | 72°F | 95°F | 82°F | 6.4" |
| July | 73°F | 99°F | 85°F | 2.3" |
| August | 74°F | 100°F | 85°F | 6.5" |
| September | 70°F | 93°F | 80°F | 6.8" |
| October | 61°F | 86°F | 72°F | 9.0" |
| November | 51°F | 73°F | 61°F | 4.7" |
| December | 44°F | 66°F | 53°F | 1.9" |
| Index | Jourdanton | Texas | National |
| Air quality index | 49 | 52 | 42 |
| Pollution index | 24,182,700 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 196 |
| Days with moderate air quality | 163 |
| Days w/ poor A.Q. for sensitive groups | 5 |
| Days with unhealthy air quality | 1 |
| Pollutant | Total |
| Arsenic | 0.310% |
| Benzene | 0.310% |
| Carbon Tetrachloride | 0.080% |
| Lead | 0.140% |
| Mercury | 0.230% |
| City | Population | Air Quality Index | National Avg. |
| Poteet, TX | 3,462 | 49 | 2.0% |
| Charlotte, TX | 1,381 | 49 | 2.0% |
| Leming, TX | 599 | 49 | 2.0% |
| Christine, TX | 181 | 49 | 2.0% |
| Pleasanton, TX | 10,703 | 49 | 2.0% |
| Jourdanton, TX | 4,338 | 49 | 2.0% |
| City | Population | Air Quality Index | National Avg. |
| Glassport, PA | 4,338 | 56 | 12.0% |
| Berryville, VA | 4,338 | 38 | 24.0% |
| Nipawin, SK | 4,338 | n/a | |
| Taylor Creek, FL | 4,337 | 36 | 28.0% |
| Guysborough, NS | 4,337 | n/a | |
| Jourdanton, TX | 4,338 | 49 | 2.0% |
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