Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 19°F | 39°F | 29°F | 3.1" |
February | 18°F | 40°F | 29°F | 2.8" |
March | 27°F | 48°F | 37°F | 3.2" |
April | 37°F | 61°F | 49°F | 3.7" |
May | 46°F | 71°F | 59°F | 3.4" |
June | 55°F | 79°F | 67°F | 4.5" |
July | 61°F | 85°F | 73°F | 3.6" |
August | 57°F | 83°F | 71°F | 3.6" |
September | 51°F | 77°F | 64°F | 3.2" |
October | 41°F | 66°F | 53°F | 4.9" |
November | 32°F | 55°F | 43°F | 3.6" |
December | 25°F | 45°F | 34°F | 4.0" |
Index | Wellesley | Massachusetts | National |
Air quality index | 43 | 40 | 42 |
Pollution index | 7,556,320 | 8,399,610 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 291 |
Days with moderate air quality | 73 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.070% |
Carbon Tetrachloride | 0.040% |
Lead | 0.010% |
Mercury | 0.040% |
City | Population | Air Quality Index | National Avg. |
Milford, MA | 26,072 | 40 | 20.0% |
Cordaville, MA | 2,884 | 40 | 20.0% |
Hudson, MA | 15,222 | 40 | 20.0% |
Framingham, MA | 72,846 | 40 | 20.0% |
Marlborough, MA | 39,663 | 40 | 20.0% |
Wellesley, MA | 28,747 | 43 | 14.0% |
City | Population | Air Quality Index | National Avg. |
Summerlin South, NV | 28,716 | 54 | 8.0% |
Forest Hills, MI | 28,690 | 38 | 24.0% |
Courtenay, BC | 28,804 | n/a | |
Vero Beach South, FL | 28,676 | 36 | 28.0% |
Bella Vista, AR | 28,819 | 44 | 12.0% |
Wellesley, MA | 28,747 | 43 | 14.0% |