Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 30°F | 49°F | 40°F | 5.8" |
February | 26°F | 44°F | 35°F | 4.8" |
March | 34°F | 52°F | 43°F | 6.6" |
April | 43°F | 62°F | 52°F | 7.0" |
May | 50°F | 69°F | 60°F | 5.2" |
June | 64°F | 79°F | 71°F | 7.2" |
July | 69°F | 85°F | 77°F | 6.9" |
August | 70°F | 86°F | 78°F | 2.9" |
September | 62°F | 80°F | 72°F | 2.6" |
October | 54°F | 71°F | 63°F | 7.4" |
November | 41°F | 59°F | 50°F | 4.3" |
December | 32°F | 50°F | 41°F | 6.8" |
Index | South Bethany | Delaware | National |
Air quality index | 36 | 41 | 42 |
Pollution index | 7,219,540 | 7,274,307 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 303 |
Days with moderate air quality | 61 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality |
Pollutant | Total |
Arsenic | 0.060% |
Benzene | 0.070% |
Carbon Tetrachloride | 0.000% |
Lead | 0.030% |
Mercury | 0.110% |
City | Population | Air Quality Index | National Avg. |
Fenwick Island, DE | 445 | 36 | 28.0% |
Dewey Beach, DE | 442 | 36 | 28.0% |
Millsboro, DE | 4,448 | 36 | 28.0% |
Ocean City, MD | 6,957 | 36 | 28.0% |
Berlin, MD | 4,740 | 36 | 28.0% |
South Bethany, DE | 558 | 36 | 28.0% |
City | Population | Air Quality Index | National Avg. |
Hartman, AR | 558 | 36 | 28.0% |
Elephant Head, AZ | 558 | 47 | 6.0% |
Ipava, IL | 558 | 41 | 18.0% |
Butterfield, MN | 558 | 32 | 36.0% |
Good Thunder, MN | 558 | 15 | 70.0% |
South Bethany, DE | 558 | 36 | 28.0% |