| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 51°F | 71°F | 60°F | 2.0" |
| February | 51°F | 71°F | 60°F | 2.0" |
| March | 57°F | 77°F | 66°F | 2.7" |
| April | 63°F | 83°F | 72°F | 3.4" |
| May | 69°F | 88°F | 77°F | 3.0" |
| June | 73°F | 91°F | 81°F | 4.9" |
| July | 75°F | 90°F | 81°F | 6.4" |
| August | 75°F | 91°F | 81°F | 7.8" |
| September | 73°F | 89°F | 80°F | 2.6" |
| October | 68°F | 85°F | 75°F | 1.6" |
| November | 57°F | 77°F | 66°F | 1.1" |
| December | 57°F | 75°F | 65°F | 1.6" |
| Index | Alturas | Florida | National |
| Air quality index | 36 | 35 | 42 |
| Pollution index | 172,076 | 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 | 0.000% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Homeland, FL | 231 | 36 | 28.0% |
| Highland Park, FL | 203 | 36 | 28.0% |
| Highland City, FL | 11,392 | 36 | 28.0% |
| Cypress Gardens, FL | 10,040 | 36 | 28.0% |
| Grenelefe, FL | 3,073 | 36 | 28.0% |
| Alturas, FL | 3,778 | 36 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Rochester, IL | 3,778 | 40 | 20.0% |
| Independence, MN | 3,778 | 46 | 8.0% |
| Hardin, MT | 3,777 | 21 | 58.0% |
| Tiffin, IA | 3,779 | 35 | 30.0% |
| Bayshore, NC | 3,776 | 34 | 32.0% |
| Alturas, FL | 3,778 | 36 | 28.0% |
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