Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 23°F | 36°F | 29°F | 5.8" |
February | 17°F | 32°F | 25°F | 2.4" |
March | 28°F | 47°F | 36°F | 3.5" |
April | 38°F | 58°F | 48°F | 6.9" |
May | 47°F | 71°F | 59°F | 2.1" |
June | 60°F | 83°F | 71°F | 4.1" |
July | 61°F | 84°F | 72°F | 6.2" |
August | 62°F | 83°F | 72°F | 13.1" |
September | 55°F | 78°F | 66°F | 4.6" |
October | 48°F | 66°F | 56°F | 4.3" |
November | 33°F | 52°F | 43°F | 4.5" |
December | 23°F | 36°F | 29°F | 3.6" |
Index | Norwalk | Ohio | National |
Air quality index | 50 | 40 | 42 |
Pollution index | 2,498,190 | 4,472,386 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 185 |
Days with moderate air quality | 173 |
Days w/ poor A.Q. for sensitive groups | 7 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.020% |
Carbon Tetrachloride | 0.004% |
Lead | 0.003% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Sandusky, OH | 24,651 | 1 | 98.0% |
Flat Rock, OH | 261 | 40 | 20.0% |
Crystal Rock, OH | 164 | 40 | 20.0% |
Castalia, OH | 1,142 | 40 | 20.0% |
Monroeville, OH | 1,314 | 40 | 20.0% |
Norwalk, OH | 16,860 | 50 | = 100 |
City | Population | Air Quality Index | National Avg. |
Southbridge Town, MA | 16,865 | 40 | 20.0% |
Lansdale, PA | 16,846 | 51 | 2.0% |
Norcross, GA | 16,876 | 52 | 4.0% |
Goodlettsville, TN | 16,829 | 45 | 10.0% |
Wayne, MI | 16,894 | 56 | 12.0% |
Norwalk, OH | 16,860 | 50 | = 100 |