Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 15°F | 38°F | 26°F | 0.8" |
February | 16°F | 40°F | 27°F | 1.2" |
March | 26°F | 53°F | 38°F | 2.5" |
April | 33°F | 59°F | 45°F | 4.6" |
May | 43°F | 68°F | 55°F | 6.2" |
June | 54°F | 81°F | 67°F | 5.1" |
July | 61°F | 89°F | 75°F | 3.4" |
August | 59°F | 87°F | 72°F | 6.4" |
September | 50°F | 79°F | 63°F | 4.3" |
October | 37°F | 63°F | 49°F | 5.6" |
November | 25°F | 51°F | 37°F | 3.2" |
December | 14°F | 36°F | 24°F | 1.6" |
Index | Summerset | South Dakota | National |
Air quality index | 44 | 36 | 42 |
Pollution index | 551,228 | 345,623 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 274 |
Days with moderate air quality | 87 |
Days w/ poor A.Q. for sensitive groups | 4 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.002% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Buffalo Chip, SD | 0 | 44 | 12.0% |
Blackhawk, SD | 3,029 | 44 | 12.0% |
Johnson Siding, SD | 658 | 44 | 12.0% |
Piedmont, SD | 1,188 | 44 | 12.0% |
Box Elder, SD | 9,937 | 44 | 12.0% |
Summerset, SD | 2,607 | 44 | 12.0% |
City | Population | Air Quality Index | National Avg. |
Vergennes, VT | 2,607 | 37 | 26.0% |
Williams Bay, WI | 2,607 | 37 | 26.0% |
South Oroville, CA | 2,606 | 46 | 8.0% |
Lincoln, ME | 2,606 | 31 | 38.0% |
Saint-Gabriel-de-Brandon, QC | 2,606 | n/a | |
Summerset, SD | 2,607 | 44 | 12.0% |