| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 42°F | 65°F | 53°F | 5.5" |
| February | 45°F | 68°F | 55°F | 3.7" |
| March | 51°F | 75°F | 62°F | 3.9" |
| April | 58°F | 80°F | 69°F | 4.4" |
| May | 65°F | 86°F | 75°F | 5.9" |
| June | 73°F | 92°F | 81°F | 5.7" |
| July | 75°F | 92°F | 82°F | 7.0" |
| August | 75°F | 93°F | 83°F | 7.9" |
| September | 70°F | 90°F | 79°F | 4.8" |
| October | 58°F | 84°F | 70°F | 4.2" |
| November | 49°F | 75°F | 61°F | 4.3" |
| December | 44°F | 67°F | 55°F | 5.2" |
| Index | Prien | Louisiana | National |
| Air quality index | 45 | 106 | 42 |
| Pollution index | 13,526,400 | 2,526,475 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 239 |
| Days with moderate air quality | 126 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.220% |
| Benzene | 0.080% |
| Carbon Tetrachloride | 0.550% |
| Lead | 0.060% |
| Mercury | 0.670% |
| City | Population | Air Quality Index | National Avg. |
| Lake Charles, LA | 79,542 | 45 | 10.0% |
| Carlyss, LA | 5,379 | 45 | 10.0% |
| Moss Bluff, LA | 10,582 | 45 | 10.0% |
| Gillis, LA | 607 | 45 | 10.0% |
| Sulphur, LA | 20,888 | 45 | 10.0% |
| Prien, LA | 8,785 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Montvale, NJ | 8,785 | 51 | 2.0% |
| Smithfield, VA | 8,784 | 40 | 20.0% |
| Live Oak city, CA | 8,786 | 35 | 30.0% |
| Fort Lupton, CO | 8,787 | 58 | 16.0% |
| Hailey, ID | 8,788 | 20 | 60.0% |
| Prien, LA | 8,785 | 45 | 10.0% |
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