| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 5°F | 29°F | 17°F | 1.0" |
| February | 11°F | 33°F | 22°F | 0.9" |
| March | 19°F | 42°F | 31°F | 1.7" |
| April | 26°F | 51°F | 38°F | 2.1" |
| May | 34°F | 62°F | 48°F | 3.1" |
| June | 41°F | 73°F | 57°F | 4.0" |
| July | 47°F | 84°F | 66°F | 2.0" |
| August | 46°F | 82°F | 64°F | 2.9" |
| September | 39°F | 73°F | 55°F | 3.3" |
| October | 30°F | 56°F | 41°F | 2.6" |
| November | 20°F | 42°F | 30°F | 1.5" |
| December | 9°F | 30°F | 19°F | 1.1" |
| Index | Drummond | Idaho | National |
| Air quality index | 43 | 32 | 42 |
| Pollution index | 225,062 | 2,063,710 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 326 |
| Days with moderate air quality | 39 |
| 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. |
| Tetonia, ID | 369 | 43 | 14.0% |
| Warm River, ID | 0 | 43 | 14.0% |
| Ashton, ID | 1,185 | 43 | 14.0% |
| Newdale, ID | 421 | 43 | 14.0% |
| Drummond, ID | 1 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Le Roy, IA | 1 | 39 | 22.0% |
| Weeki Wachee, FL | 1 | 30 | 40.0% |
| Clear Hills 152C, AB | 1 | n/a | |
| Mont-Valin, QC | 1 | n/a | |
| Réservoir-Dozois, QC | 1 | n/a | |
| Drummond, ID | 1 | 43 | 14.0% |
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