Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 12°F | 31°F | 21°F | 1.6" |
February | 17°F | 38°F | 27°F | 1.3" |
March | 27°F | 51°F | 38°F | 1.8" |
April | 33°F | 61°F | 46°F | 2.3" |
May | 39°F | 70°F | 54°F | 2.3" |
June | 46°F | 83°F | 65°F | 1.2" |
July | 54°F | 93°F | 74°F | 0.5" |
August | 51°F | 90°F | 71°F | 0.8" |
September | 43°F | 80°F | 60°F | 1.5" |
October | 33°F | 64°F | 47°F | 1.5" |
November | 25°F | 49°F | 36°F | 1.2" |
December | 16°F | 34°F | 25°F | 1.2" |
Index | St. Charles | Idaho | National |
Air quality index | 44 | 32 | 42 |
Pollution index | 2,422,660 | 2,063,710 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 272 |
Days with moderate air quality | 79 |
Days w/ poor A.Q. for sensitive groups | 14 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.001% |
Benzene | 0.040% |
Carbon Tetrachloride | 0.000% |
Lead | 0.050% |
Mercury | 0.001% |
City | Population | Air Quality Index | National Avg. |
Paris, ID | 667 | 44 | 12.0% |
Garden City, UT | 337 | 44 | 12.0% |
Bloomington, ID | 204 | 44 | 12.0% |
Montpelier, ID | 2,512 | 44 | 12.0% |
St. Charles, ID | 160 | 44 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Tomales, CA | 160 | 34 | 32.0% |
Dewy Rose, GA | 160 | 44 | 12.0% |
Alexander, IA | 160 | 15 | 70.0% |
Andover, IA | 160 | 42 | 16.0% |
Stockton, IA | 160 | 46 | 8.0% |
St. Charles, ID | 160 | 44 | 12.0% |