| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 36°F | 61°F | 47°F | 0.8" |
| February | 39°F | 66°F | 52°F | 0.4" |
| March | 45°F | 72°F | 58°F | 0.6" |
| April | 50°F | 78°F | 64°F | 0.7" |
| May | 56°F | 85°F | 71°F | 0.3" |
| June | 67°F | 95°F | 81°F | 0.5" |
| July | 68°F | 90°F | 78°F | 3.9" |
| August | 66°F | 89°F | 77°F | 3.9" |
| September | 62°F | 86°F | 73°F | 2.7" |
| October | 54°F | 80°F | 66°F | 0.5" |
| November | 44°F | 71°F | 57°F | 0.3" |
| December | 36°F | 61°F | 48°F | 0.8" |
| Index | Whetstone | Arizona | National |
| Air quality index | 45 | 57 | 42 |
| Pollution index | 4,063,380 | 9,766,019 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 266 |
| Days with moderate air quality | 99 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.004% |
| Benzene | 0.060% |
| Carbon Tetrachloride | 0.010% |
| Lead | 0.040% |
| Mercury | 0.001% |
| City | Population | Air Quality Index | National Avg. |
| Elgin, AZ | 168 | 45 | 10.0% |
| Huachuca City, AZ | 1,954 | 45 | 10.0% |
| Sierra Vista, AZ | 43,756 | 45 | 10.0% |
| St. David, AZ | 1,481 | 45 | 10.0% |
| Whetstone, AZ | 2,995 | 45 | 10.0% |
| City | Population | Air Quality Index | National Avg. |
| Prescott, AR | 2,995 | 32 | 36.0% |
| Soda Springs, ID | 2,994 | 27 | 46.0% |
| Stallion Springs, CA | 2,996 | 67 | 34.0% |
| Harriman, NY | 2,996 | 36 | 28.0% |
| Hennessey, OK | 2,996 | 48 | 4.0% |
| Whetstone, AZ | 2,995 | 45 | 10.0% |
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