| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 55°F | 71°F | 63°F | 4.8" |
| February | 52°F | 70°F | 61°F | 4.2" |
| March | 57°F | 74°F | 65°F | 6.2" |
| April | 60°F | 77°F | 68°F | 5.0" |
| May | 66°F | 81°F | 74°F | 6.6" |
| June | 72°F | 86°F | 79°F | 9.1" |
| July | 75°F | 89°F | 81°F | 9.2" |
| August | 75°F | 90°F | 82°F | 5.0" |
| September | 74°F | 86°F | 79°F | 13.1" |
| October | 70°F | 81°F | 75°F | 16.9" |
| November | 60°F | 75°F | 67°F | 2.2" |
| December | 55°F | 71°F | 62°F | 4.6" |
| Index | Titusville | Florida | National |
| Air quality index | 37 | 35 | 42 |
| Pollution index | 16,722,700 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 355 |
| Days with good air quality | 321 |
| Days with moderate air quality | 34 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.050% |
| Benzene | 0.210% |
| Carbon Tetrachloride | 0.030% |
| Lead | 0.190% |
| Mercury | 0.010% |
| City | Population | Air Quality Index | National Avg. |
| Sharpes, FL | 2,752 | 36 | 28.0% |
| Mims, FL | 7,164 | 37 | 26.0% |
| Christmas, FL | 1,601 | 39 | 22.0% |
| Port St. John, FL | 23,940 | 39 | 22.0% |
| Titusville, FL | 46,307 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| Everett, MA | 46,275 | 43 | 14.0% |
| Potomac, MD | 46,256 | 47 | 6.0% |
| Bothell, WA | 46,386 | 45 | 10.0% |
| Mission, BC | 46,224 | n/a | |
| West Vancouver, BC | 46,220 | n/a | |
| Titusville, FL | 46,307 | 37 | 26.0% |
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