| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 51°F | 71°F | 61°F | 2.8" |
| February | 53°F | 74°F | 63°F | 2.0" |
| March | 57°F | 78°F | 68°F | 2.6" |
| April | 63°F | 84°F | 74°F | 1.9" |
| May | 67°F | 88°F | 78°F | 3.6" |
| June | 73°F | 90°F | 81°F | 10.9" |
| July | 74°F | 90°F | 82°F | 10.6" |
| August | 75°F | 91°F | 82°F | 9.7" |
| September | 73°F | 89°F | 81°F | 8.9" |
| October | 66°F | 84°F | 75°F | 3.6" |
| November | 58°F | 78°F | 68°F | 1.8" |
| December | 56°F | 75°F | 65°F | 1.2" |
| Index | Kathleen | Florida | National |
| Air quality index | 36 | 35 | 42 |
| Pollution index | 4,416,470 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 314 |
| Days with moderate air quality | 51 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.002% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.020% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Crystal Lake, FL | 6,211 | 36 | 28.0% |
| Lakeland Highlands, FL | 11,575 | 36 | 28.0% |
| Plant City, FL | 39,437 | 36 | 28.0% |
| Zephyrhills, FL | 16,062 | 36 | 28.0% |
| Fussels Corner, FL | 4,780 | 36 | 28.0% |
| Kathleen, FL | 6,402 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Galax, VA | 6,402 | 41 | 18.0% |
| North Fort Lewis, WA | 6,402 | 30 | 40.0% |
| Buena Vista, MI | 6,401 | 26 | 48.0% |
| Hampstead, MD | 6,403 | 46 | 8.0% |
| Millersville, TN | 6,403 | 45 | 10.0% |
| Kathleen, FL | 6,402 | 36 | 28.0% |
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