| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 36°F | 56°F | 45°F | 6.3" |
| February | 40°F | 62°F | 50°F | 1.6" |
| March | 49°F | 72°F | 59°F | 11.3" |
| April | 53°F | 75°F | 63°F | 13.0" |
| May | 64°F | 82°F | 73°F | 7.5" |
| June | 71°F | 91°F | 81°F | 13.7" |
| July | 72°F | 93°F | 82°F | 9.9" |
| August | 74°F | 96°F | 85°F | 5.1" |
| September | 69°F | 93°F | 81°F | 11.7" |
| October | 56°F | 82°F | 68°F | 4.3" |
| November | 47°F | 72°F | 59°F | 5.6" |
| December | 35°F | 61°F | 47°F | 1.9" |
| Index | Newark | Texas | National |
| Air quality index | 33 | 52 | 42 |
| Pollution index | 1,399,310 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 329 |
| Days with moderate air quality | 33 |
| Days w/ poor A.Q. for sensitive groups | 3 |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | 0.003% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.010% |
| Mercury | 0.002% |
| City | Population | Air Quality Index | National Avg. |
| Azle, TX | 12,950 | 33 | 34.0% |
| Lakeside town (San Patricio County), TX | 307 | 33 | 34.0% |
| Boyd, TX | 1,375 | 33 | 34.0% |
| Decatur, TX | 6,976 | 33 | 34.0% |
| Pelican Bay, TX | 1,618 | 33 | 34.0% |
| Newark, TX | 1,180 | 33 | 34.0% |
| City | Population | Air Quality Index | National Avg. |
| North Grosvenor Dale, CT | 1,180 | 40 | 20.0% |
| Woodbury, GA | 1,180 | 42 | 16.0% |
| Peabody, KS | 1,180 | 40 | 20.0% |
| Lexington, MI | 1,180 | 38 | 24.0% |
| Cottonwood, MN | 1,180 | 32 | 36.0% |
| Newark, TX | 1,180 | 33 | 34.0% |
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