| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 56°F | 42°F | 8.3" |
| February | 34°F | 60°F | 45°F | 7.1" |
| March | 43°F | 68°F | 55°F | 10.8" |
| April | 51°F | 78°F | 64°F | 6.1" |
| May | 58°F | 83°F | 70°F | 9.0" |
| June | 69°F | 91°F | 79°F | 7.6" |
| July | 70°F | 93°F | 81°F | 8.8" |
| August | 69°F | 93°F | 80°F | 7.7" |
| September | 62°F | 91°F | 75°F | 10.0" |
| October | 52°F | 80°F | 65°F | 11.1" |
| November | 39°F | 65°F | 51°F | 8.8" |
| December | 36°F | 58°F | 46°F | 9.9" |
| Index | Caddo Valley | Arkansas | National |
| Air quality index | 32 | 38 | 42 |
| Pollution index | 1,270,470 | 1,487,822 | 2,726,193 |
| Measurement | Total |
| Days measured | 355 |
| Days with good air quality | 347 |
| Days with moderate air quality | 8 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Donaldson, AR | 348 | 32 | 36.0% |
| Friendship, AR | 230 | 32 | 36.0% |
| Gum Springs, AR | 111 | 32 | 36.0% |
| Arkadelphia, AR | 10,670 | 32 | 36.0% |
| Okolona, AR | 348 | 32 | 36.0% |
| Caddo Valley, AR | 713 | 32 | 36.0% |
| City | Population | Air Quality Index | National Avg. |
| Round Valley, AZ | 713 | 60 | 20.0% |
| Hanover, IL | 713 | 42 | 16.0% |
| Parkway Village, KY | 713 | 49 | 2.0% |
| North Brentwood, MD | 713 | 47 | 6.0% |
| Bassett, NE | 713 | 19 | 62.0% |
| Caddo Valley, AR | 713 | 32 | 36.0% |
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