Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 28°F | 44°F | 35°F | 6.3" |
February | 28°F | 46°F | 36°F | 4.5" |
March | 35°F | 55°F | 44°F | 6.6" |
April | 45°F | 66°F | 55°F | 6.3" |
May | 55°F | 75°F | 64°F | 5.8" |
June | 64°F | 83°F | 73°F | 8.1" |
July | 69°F | 87°F | 78°F | 10.2" |
August | 67°F | 85°F | 76°F | 9.2" |
September | 61°F | 79°F | 69°F | 9.7" |
October | 50°F | 69°F | 59°F | 9.2" |
November | 39°F | 58°F | 48°F | 5.9" |
December | 33°F | 50°F | 41°F | 7.5" |
Index | Dover | Delaware | National |
Air quality index | 42 | 41 | 42 |
Pollution index | 3,193,180 | 7,274,307 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 293 |
Days with moderate air quality | 72 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.000% |
Lead | 0.010% |
Mercury | 0.020% |
City | Population | Air Quality Index | National Avg. |
Highland Acres, DE | 3,913 | 42 | 16.0% |
Magnolia, DE | 379 | 42 | 16.0% |
Templeville, MD | 170 | 42 | 16.0% |
Felton, DE | 1,191 | 42 | 16.0% |
Woodside East, DE | 2,167 | 42 | 16.0% |
Dover, DE | 37,872 | 42 | 16.0% |
City | Population | Air Quality Index | National Avg. |
Kailua, HI | 37,900 | 30 | 40.0% |
Fort Lee, NJ | 37,843 | 51 | 2.0% |
Longview, WA | 37,914 | 18 | 64.0% |
Prince Albert, SK | 37,925 | n/a | |
Rosenberg, TX | 37,816 | 52 | 4.0% |
Dover, DE | 37,872 | 42 | 16.0% |