Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 7°F | 28°F | 17°F | 0.4" |
February | 9°F | 31°F | 19°F | 0.8" |
March | 23°F | 47°F | 33°F | 0.9" |
April | 33°F | 60°F | 45°F | 1.9" |
May | 44°F | 71°F | 57°F | 3.3" |
June | 55°F | 81°F | 67°F | 3.1" |
July | 61°F | 89°F | 74°F | 2.0" |
August | 59°F | 86°F | 71°F | 3.0" |
September | 50°F | 77°F | 62°F | 1.6" |
October | 37°F | 61°F | 48°F | 1.8" |
November | 23°F | 46°F | 33°F | 0.4" |
December | 10°F | 29°F | 19°F | 0.7" |
Index | Timber Lake | South Dakota | National |
Air quality index | 36 | 36 | 42 |
Pollution index | 308,702 | 345,623 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 320 |
Days with moderate air quality | 45 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.004% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Whitehorse, SD | 245 | 36 | 28.0% |
Timber Lake, SD | 669 | 36 | 28.0% |
City | Population | Air Quality Index | National Avg. |
Stratford, IA | 669 | 37 | 26.0% |
Bedford Park, IL | 669 | 55 | 10.0% |
Scranton, KS | 669 | 41 | 18.0% |
Bowmans Addition, MD | 669 | 36 | 28.0% |
Loch Lloyd, MO | 669 | 47 | 6.0% |
Timber Lake, SD | 669 | 36 | 28.0% |