Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 25°F | 40°F | 31°F | 7.2" |
February | 22°F | 38°F | 29°F | 3.1" |
March | 27°F | 44°F | 35°F | 9.7" |
April | 36°F | 54°F | 45°F | 8.7" |
May | 46°F | 62°F | 53°F | 6.7" |
June | 57°F | 73°F | 64°F | 1.9" |
July | 64°F | 79°F | 71°F | 5.2" |
August | 63°F | 81°F | 71°F | 3.1" |
September | 57°F | 75°F | 66°F | 9.5" |
October | 48°F | 65°F | 56°F | 7.3" |
November | 36°F | 54°F | 45°F | 5.9" |
December | 27°F | 42°F | 34°F | 5.5" |
Index | East Dennis | Massachusetts | National |
Air quality index | 36 | 40 | 42 |
Pollution index | 7,903,830 | 8,399,610 | 2,726,193 |
Measurement | Total |
Days measured | 359 |
Days with good air quality | 348 |
Days with moderate air quality | 11 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.060% |
Benzene | 0.070% |
Carbon Tetrachloride | 0.010% |
Lead | 0.080% |
Mercury | 0.030% |
City | Population | Air Quality Index | National Avg. |
Orleans, MA | 1,519 | 36 | 28.0% |
Brewster, MA | 1,347 | 36 | 28.0% |
East Sandwich, MA | 3,628 | 36 | 28.0% |
South Dennis, MA | 2,895 | 36 | 28.0% |
West Dennis, MA | 2,479 | 36 | 28.0% |
East Dennis, MA | 3,068 | 36 | 28.0% |
City | Population | Air Quality Index | National Avg. |
Saint-Jean-Baptiste, QC | 3,068 | n/a | |
North Lakeport, CA | 3,067 | 33 | 34.0% |
Fairport Harbor, OH | 3,067 | 34 | 32.0% |
Kingwood, WV | 3,067 | 36 | 28.0% |
Macon, MS | 3,069 | 36 | 28.0% |
East Dennis, MA | 3,068 | 36 | 28.0% |