Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 26°F | 41°F | 33°F | 9.0" |
February | 25°F | 43°F | 33°F | 4.8" |
March | 36°F | 60°F | 47°F | 3.9" |
April | 44°F | 68°F | 55°F | 4.3" |
May | 56°F | 80°F | 67°F | 4.3" |
June | 65°F | 87°F | 76°F | 5.8" |
July | 66°F | 89°F | 77°F | 3.9" |
August | 69°F | 91°F | 79°F | 4.6" |
September | 60°F | 85°F | 71°F | 4.9" |
October | 48°F | 71°F | 59°F | 3.7" |
November | 36°F | 58°F | 46°F | 7.6" |
December | 25°F | 40°F | 32°F | 2.5" |
Index | Winfield | Missouri | National |
Air quality index | 54 | 97 | 42 |
Pollution index | 3,042,530 | 1,630,255 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 134 |
Days with moderate air quality | 221 |
Days w/ poor A.Q. for sensitive groups | 8 |
Days with unhealthy air quality | 2 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.040% |
Carbon Tetrachloride | 0.010% |
Lead | 0.010% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Whiteside, MO | 85 | 41 | 18.0% |
Fountain N' Lakes, MO | 232 | 54 | 8.0% |
Foristell, MO | 881 | 54 | 8.0% |
O'Fallon, MO | 88,132 | 54 | 8.0% |
St. Paul, MO | 2,463 | 54 | 8.0% |
Winfield, MO | 1,954 | 54 | 8.0% |
City | Population | Air Quality Index | National Avg. |
Huachuca City, AZ | 1,954 | 45 | 10.0% |
Arcade, GA | 1,954 | 44 | 12.0% |
Weedsport, NY | 1,954 | 37 | 26.0% |
Gila Bend, AZ | 1,955 | 74 | 48.0% |
Slayton, MN | 1,953 | 32 | 36.0% |
Winfield, MO | 1,954 | 54 | 8.0% |