Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 14°F | 28°F | 21°F | 1.7" |
February | 16°F | 30°F | 23°F | 2.3" |
March | 29°F | 46°F | 36°F | 2.7" |
April | 39°F | 59°F | 48°F | 4.4" |
May | 50°F | 71°F | 60°F | 4.6" |
June | 60°F | 79°F | 69°F | 9.5" |
July | 64°F | 82°F | 72°F | 7.7" |
August | 62°F | 80°F | 71°F | 6.1" |
September | 54°F | 74°F | 63°F | 4.2" |
October | 43°F | 61°F | 51°F | 4.4" |
November | 32°F | 47°F | 38°F | 3.3" |
December | 20°F | 32°F | 26°F | 1.1" |
Index | Janesville | Wisconsin | National |
Air quality index | 38 | 69 | 42 |
Pollution index | 1,129,440 | 2,842,418 | 2,726,193 |
Measurement | Total |
Days measured | 203 |
Days with good air quality | 185 |
Days with moderate air quality | 18 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.003% |
Benzene | 0.040% |
Carbon Tetrachloride | 0.000% |
Lead | 0.001% |
Mercury | 0.020% |
City | Population | Air Quality Index | National Avg. |
Lake Koshkonong, WI | 958 | 37 | 26.0% |
Whitewater, WI | 14,762 | 37 | 26.0% |
Lake Lorraine, WI | 259 | 37 | 26.0% |
South Beloit, IL | 7,730 | 38 | 24.0% |
Orfordville, WI | 1,450 | 38 | 24.0% |
Janesville, WI | 64,415 | 38 | 24.0% |
City | Population | Air Quality Index | National Avg. |
Noblesville, IN | 64,430 | 42 | 16.0% |
Castro Valley, CA | 64,392 | 40 | 20.0% |
Eden Prairie, MN | 64,481 | 46 | 8.0% |
Port Charlotte, FL | 64,335 | 36 | 28.0% |
Tulare, CA | 64,546 | 66 | 32.0% |
Janesville, WI | 64,415 | 38 | 24.0% |