Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 22°F | 41°F | 31°F | 4.0" |
February | 21°F | 42°F | 31°F | 3.8" |
March | 28°F | 50°F | 39°F | 5.0" |
April | 39°F | 63°F | 50°F | 4.7" |
May | 48°F | 71°F | 59°F | 3.7" |
June | 58°F | 80°F | 68°F | 4.8" |
July | 65°F | 86°F | 75°F | 4.0" |
August | 63°F | 84°F | 73°F | 3.6" |
September | 56°F | 78°F | 66°F | 4.3" |
October | 46°F | 67°F | 56°F | 5.9" |
November | 36°F | 56°F | 45°F | 4.4" |
December | 27°F | 46°F | 36°F | 5.2" |
Index | Valley | Providence | Rhode Island |
Air quality index | 44 | 44 | 45 |
Pollution index | 8,312,000 | 8,312,000 | 3,440,259 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 289 |
Days with moderate air quality | 74 |
Days w/ poor A.Q. for sensitive groups | 2 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.090% |
Carbon Tetrachloride | 0.040% |
Lead | 0.210% |
Mercury | 0.060% |
City | Population | Air Quality Index | National Avg. |
Attleboro, MA | 45,023 | 44 | 12.0% |
Central Falls, RI | 19,437 | 44 | 12.0% |
Harmony, RI | 1,195 | 44 | 12.0% |
Valley Falls, RI | 11,548 | 44 | 12.0% |
Fall River, MA | 89,618 | 44 | 12.0% |
Providence, RI | 179,472 | 44 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Newport News, VA | 179,582 | 40 | 20.0% |
Santa Rosa, CA | 178,391 | 34 | 32.0% |
Ontario, CA | 178,194 | 89 | 78.0% |
Rancho Cucamonga, CA | 178,060 | 89 | 78.0% |
Sioux Falls, SD | 180,927 | 36 | 28.0% |
Providence, RI | 179,472 | 44 | 12.0% |