| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 48°F | 71°F | 59°F | 3.0" |
| February | 51°F | 74°F | 61°F | 2.5" |
| March | 55°F | 78°F | 66°F | 2.0" |
| April | 61°F | 83°F | 72°F | 3.0" |
| May | 65°F | 86°F | 75°F | 3.8" |
| June | 72°F | 89°F | 79°F | 7.3" |
| July | 74°F | 91°F | 81°F | 4.6" |
| August | 75°F | 91°F | 81°F | 5.9" |
| September | 73°F | 88°F | 79°F | 7.6" |
| October | 65°F | 83°F | 74°F | 4.6" |
| November | 57°F | 77°F | 67°F | 2.9" |
| December | 53°F | 75°F | 63°F | 2.0" |
| Index | North DeLand | Florida | National |
| Air quality index | 37 | 35 | 50 |
| Pollution index | 12,822,300 | 15,391,344 | 5,066,862 |
| 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 | 0.020% |
| Benzene | 0.160% |
| Carbon Tetrachloride | 0.030% |
| Lead | 0.270% |
| Mercury | 0.010% |
| City, State | Population | Air Quality Index | National Avg. |
| Pierson, FL | 1,605 | 31 | 38% |
| Astor, FL | 1,560 | 37 | 26% |
| Lake Mack-Forest Hills, FL | 541 | 37 | 26% |
| West DeLand, FL | 3,926 | 37 | 26% |
| Lake Helen, FL | 2,678 | 37 | 26% |
| North DeLand, FL | 1,409 | 37 | 26% |
| City, State | Population | Air Quality Index | National Avg. |
| Hardwick, VT | 1,409 | 37 | 26% |
| Frenchtown, NJ | 1,409 | 42 | 16% |
| New Hartford Center, CT | 1,409 | 37 | 26% |
| St. Michaels, AZ | 1,409 | 17 | 66% |
| Burgettstown, PA | 1,409 | 46 | 8% |
| North DeLand, FL | 1,409 | 37 | 26% |
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