| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 30°F | 54°F | 40°F | 2.4" |
| February | 33°F | 56°F | 43°F | 5.0" |
| March | 43°F | 68°F | 54°F | 4.7" |
| April | 51°F | 75°F | 62°F | 8.7" |
| May | 59°F | 80°F | 68°F | 12.5" |
| June | 69°F | 90°F | 79°F | 8.0" |
| July | 71°F | 95°F | 82°F | 7.7" |
| August | 70°F | 94°F | 81°F | 7.9" |
| September | 62°F | 86°F | 73°F | 7.9" |
| October | 51°F | 76°F | 62°F | 11.3" |
| November | 41°F | 65°F | 52°F | 6.8" |
| December | 32°F | 53°F | 41°F | 9.8" |
| Index | Stidham | Oklahoma | National |
| Air quality index | 43 | 55 | 42 |
| Pollution index | 1,454,170 | 1,271,533 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 272 |
| Days with moderate air quality | 91 |
| Days w/ poor A.Q. for sensitive groups | 2 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Checotah, OK | 3,113 | 5 | 90.0% |
| Schulter, OK | 556 | 5 | 90.0% |
| Council Hill, OK | 95 | 5 | 90.0% |
| Oktaha, OK | 292 | 5 | 90.0% |
| Grayson, OK | 178 | 5 | 90.0% |
| Stidham, OK | 20 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Lake Minchumina, AK | 20 | 38 | 24.0% |
| Tonsina, AK | 20 | 31 | 38.0% |
| Megargel, AL | 20 | 37 | 26.0% |
| Hunter Creek, AZ | 20 | 60 | 20.0% |
| Salmon Creek, CA | 20 | 34 | 32.0% |
| Stidham, OK | 20 | 43 | 14.0% |
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