Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 49°F | 73°F | 60°F | 2.5" |
February | 51°F | 75°F | 62°F | 2.3" |
March | 55°F | 79°F | 66°F | 2.6" |
April | 61°F | 84°F | 72°F | 2.8" |
May | 67°F | 89°F | 77°F | 3.9" |
June | 73°F | 91°F | 80°F | 7.7" |
July | 75°F | 93°F | 82°F | 6.2" |
August | 75°F | 93°F | 82°F | 6.9" |
September | 73°F | 90°F | 80°F | 6.5" |
October | 66°F | 85°F | 74°F | 4.6" |
November | 58°F | 79°F | 67°F | 1.6" |
December | 54°F | 76°F | 64°F | 1.7" |
Index | Lake Helen | 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. |
DeLand Southwest, FL | 841 | 37 | 26% |
West DeLand, FL | 3,926 | 37 | 26% |
North DeLand, FL | 1,409 | 37 | 26% |
Sanford, FL | 57,039 | 37 | 26% |
Heathrow, FL | 6,157 | 37 | 26% |
Lake Helen, FL | 2,678 | 37 | 26% |
City, State | Population | Air Quality Index | National Avg. |
Clinton, NJ | 2,679 | 34 | 32% |
Dennis Port, MA | 2,680 | 36 | 28% |
Maxton, NC | 2,676 | 30 | 40% |
Trenton, IL | 2,680 | 54 | 8% |
Provincetown, MA | 2,680 | 36 | 28% |
Lake Helen, FL | 2,678 | 37 | 26% |