| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 51°F | 73°F | 61°F | 2.6" |
| February | 52°F | 74°F | 63°F | 2.8" |
| March | 57°F | 79°F | 67°F | 2.9" |
| April | 64°F | 84°F | 73°F | 2.9" |
| May | 69°F | 88°F | 78°F | 3.3" |
| June | 74°F | 90°F | 82°F | 8.5" |
| July | 76°F | 91°F | 83°F | 8.5" |
| August | 76°F | 92°F | 83°F | 9.7" |
| September | 75°F | 91°F | 81°F | 6.3" |
| October | 68°F | 86°F | 76°F | 2.3" |
| November | 59°F | 80°F | 68°F | 1.6" |
| December | 56°F | 76°F | 65°F | 1.4" |
| Index | Northdale | Florida | National |
| Air quality index | 43 | 35 | 42 |
| Pollution index | 7,575,390 | 7,570,785 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 267 |
| Days with moderate air quality | 92 |
| Days w/ poor A.Q. for sensitive groups | 6 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.050% |
| Benzene | 0.100% |
| Carbon Tetrachloride | 0.020% |
| Lead | 0.030% |
| Mercury | 0.020% |
| City | Population | Air Quality Index | National Avg. |
| Elfers, FL | 12,915 | 43 | 14.0% |
| New Port Richey East, FL | 10,651 | 43 | 14.0% |
| Carrollwood, FL | 35,360 | 43 | 14.0% |
| Keystone, FL | 25,377 | 43 | 14.0% |
| Odessa, FL | 7,808 | 43 | 14.0% |
| Northdale, FL | 24,660 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Staunton, VA | 24,660 | 36 | 28.0% |
| West Memphis, AR | 24,656 | 45 | 10.0% |
| Sandusky, OH | 24,651 | 1 | 98.0% |
| Wright, FL | 24,671 | 31 | 38.0% |
| Mill Creek East, WA | 24,643 | 45 | 10.0% |
| Northdale, FL | 24,660 | 43 | 14.0% |
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