| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 36°F | 57°F | 45°F | 3.6" |
| February | 39°F | 60°F | 48°F | 3.5" |
| March | 47°F | 69°F | 57°F | 4.7" |
| April | 54°F | 77°F | 65°F | 5.1" |
| May | 62°F | 83°F | 72°F | 5.0" |
| June | 70°F | 91°F | 80°F | 3.0" |
| July | 73°F | 94°F | 82°F | 4.1" |
| August | 73°F | 94°F | 82°F | 3.1" |
| September | 65°F | 88°F | 76°F | 4.3" |
| October | 54°F | 78°F | 65°F | 4.2" |
| November | 46°F | 67°F | 55°F | 3.7" |
| December | 38°F | 58°F | 47°F | 4.8" |
| Index | Texarkana | Texas | National |
| Air quality index | 39 | 52 | 42 |
| Pollution index | 537,821 | 2,009,300 | 2,726,193 |
| Measurement | Total |
| Days measured | 349 |
| Days with good air quality | 254 |
| Days with moderate air quality | 94 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.001% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Texarkana, AR | 29,864 | 39 | 22.0% |
| Leary, TX | 616 | 39 | 22.0% |
| Redwater, TX | 1,177 | 39 | 22.0% |
| Fouke, AR | 796 | 39 | 22.0% |
| Wake Village, TX | 5,611 | 39 | 22.0% |
| Texarkana, TX | 36,733 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Waxahachie, TX | 36,735 | 51 | 2.0% |
| New Albany, IN | 36,730 | 49 | 2.0% |
| Campbell River, BC | 36,740 | n/a | |
| Addison, IL | 36,714 | 55 | 10.0% |
| University, FL | 36,709 | 43 | 14.0% |
| Texarkana, TX | 36,733 | 39 | 22.0% |
Here are the best places to live in Texas
Top 10 best public schools in Texarkana
10 Best cities in Texas for employment
Check out the 10 safest cities in Texas