| 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 | Swannanoa | Lakeland | Florida |
| Air quality index | 36 | 36 | 35 |
| Pollution index | 26,458,600 | 26,458,600 | 7,570,785 |
| 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 | 0.140% |
| Benzene | 0.280% |
| Carbon Tetrachloride | 0.060% |
| Lead | 0.080% |
| Mercury | 0.060% |
| 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% |
| Alturas, FL | 3,778 | 36 | 28.0% |
| Inwood, FL | 7,196 | 36 | 28.0% |
| Lakeland, FL | 110,335 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Gresham, OR | 110,456 | 38 | 24.0% |
| Richmond, CA | 110,051 | 40 | 20.0% |
| Miami Gardens, FL | 110,767 | 41 | 18.0% |
| Everett, WA | 110,840 | 45 | 10.0% |
| Billings, MT | 109,705 | 21 | 58.0% |
| Lakeland, FL | 110,335 | 36 | 28.0% |
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