| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | n/a°F | n/a°F | n/a°F | n/a |
| February | n/a°F | n/a°F | n/a°F | n/a |
| March | n/a°F | n/a°F | n/a°F | n/a |
| April | n/a°F | n/a°F | n/a°F | n/a |
| May | n/a°F | n/a°F | n/a°F | n/a |
| June | n/a°F | n/a°F | n/a°F | n/a |
| July | n/a°F | n/a°F | n/a°F | n/a |
| August | n/a°F | n/a°F | n/a°F | n/a |
| September | n/a°F | n/a°F | n/a°F | n/a |
| October | n/a°F | n/a°F | n/a°F | n/a |
| November | n/a°F | n/a°F | n/a°F | n/a |
| December | n/a°F | n/a°F | n/a°F | n/a |
| Index | Grand Forks | British Columbia | National |
| Air quality index | n/a | n/a | 42 |
| Pollution index | n/a | n/a | 2,726,193 |
| Measurement | Total |
| Days measured | |
| Days with good air quality | |
| Days with moderate air quality | |
| Days w/ poor A.Q. for sensitive groups | |
| Days with unhealthy air quality |
| Pollutant | Total |
| Arsenic | n/a% |
| Benzene | n/a% |
| Carbon Tetrachloride | n/a% |
| Lead | n/a% |
| Mercury | n/a% |
| City | Population | Air Quality Index | National Avg. |
| Danville, WA | 70 | 43 | 14.0% |
| Laurier, WA | 0 | 43 | 14.0% |
| Orient, WA | 82 | 43 | 14.0% |
| Curlew, WA | 51 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Falfurrias, TX | 4,435 | 30 | 40.0% |
| Napierville, QC | 4,435 | n/a | |
| Belton, SC | 4,436 | 31 | 38.0% |
| Armona, CA | 4,437 | 56 | 12.0% |
| Newport, SC | 4,432 | 49 | 2.0% |
| Grand Forks, BC | 4,435 | n/a |