Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | -5°F | 14°F | 5°F | 4.6" |
February | -3°F | 16°F | 7°F | 1.8" |
March | 13°F | 32°F | 23°F | 1.7" |
April | 28°F | 51°F | 39°F | 1.5" |
May | 41°F | 67°F | 54°F | 3.7" |
June | 52°F | 75°F | 64°F | 3.9" |
July | 55°F | 81°F | 69°F | 3.5" |
August | 52°F | 79°F | 66°F | 1.8" |
September | 45°F | 71°F | 58°F | 2.4" |
October | 33°F | 55°F | 44°F | 1.6" |
November | 19°F | 36°F | 27°F | 1.2" |
December | 1°F | 18°F | 10°F | 3.3" |
Index | Donaldson | Minnesota | National |
Air quality index | 33 | 35 | 42 |
Pollution index | 536,122 | 1,854,519 | 2,726,193 |
Measurement | Total |
Days measured | 363 |
Days with good air quality | 327 |
Days with moderate air quality | 34 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality | 1 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.001% |
Lead | 0.020% |
Mercury | 0.004% |
City | Population | Air Quality Index | National Avg. |
Kennedy, MN | 211 | 33 | 34.0% |
Halma, MN | 39 | 33 | 34.0% |
Lake Bronson, MN | 200 | 33 | 34.0% |
Hallock, MN | 906 | 33 | 34.0% |
Stephen, MN | 550 | 33 | 34.0% |
Donaldson, MN | 7 | 33 | 34.0% |
City | Population | Air Quality Index | National Avg. |
Healy Lake, AK | 7 | 38 | 24.0% |
Livengood, AK | 7 | 38 | 24.0% |
Corley, IA | 7 | 40 | 20.0% |
Radium, KS | 7 | 15 | 70.0% |
Harrison, SD | 7 | 36 | 28.0% |
Donaldson, MN | 7 | 33 | 34.0% |