| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 51°F | 73°F | 61°F | 3.0" |
| February | 53°F | 75°F | 63°F | 2.1" |
| March | 57°F | 79°F | 67°F | 2.7" |
| April | 63°F | 85°F | 73°F | 2.8" |
| May | 68°F | 89°F | 77°F | 4.2" |
| June | 73°F | 91°F | 80°F | 8.7" |
| July | 75°F | 92°F | 82°F | 8.2" |
| August | 76°F | 92°F | 82°F | 7.1" |
| September | 74°F | 90°F | 80°F | 7.4" |
| October | 68°F | 85°F | 75°F | 3.5" |
| November | 59°F | 79°F | 68°F | 1.3" |
| December | 55°F | 76°F | 64°F | 1.7" |
| Index | Holden Heights | Florida | National |
| Air quality index | 39 | 35 | 42 |
| Pollution index | 713,198 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 296 |
| Days with moderate air quality | 63 |
| Days w/ poor A.Q. for sensitive groups | 6 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.010% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Oviedo, FL | 41,062 | 37 | 26.0% |
| Winter Springs, FL | 36,859 | 37 | 26.0% |
| Apopka, FL | 52,795 | 37 | 26.0% |
| Black Hammock, FL | 1,080 | 37 | 26.0% |
| Longwood, FL | 15,514 | 37 | 26.0% |
| Holden Heights, FL | 3,506 | 39 | 22.0% |
| City | Population | Air Quality Index | National Avg. |
| Perham, MN | 3,506 | 33 | 34.0% |
| Flagstaff County, AB | 3,506 | n/a | |
| Montrose, MN | 3,505 | 46 | 8.0% |
| Etowah, TN | 3,505 | 30 | 40.0% |
| St. Johns, AZ | 3,507 | 44 | 12.0% |
| Holden Heights, FL | 3,506 | 39 | 22.0% |
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