| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 32°F | 49°F | 39°F | 3.5" |
| February | 35°F | 57°F | 44°F | 0.9" |
| March | 45°F | 70°F | 55°F | 3.9" |
| April | 49°F | 74°F | 60°F | 2.4" |
| May | 61°F | 82°F | 70°F | 3.6" |
| June | 70°F | 92°F | 80°F | 6.7" |
| July | 71°F | 93°F | 82°F | 4.5" |
| August | 72°F | 94°F | 82°F | 7.7" |
| September | 66°F | 91°F | 77°F | 7.9" |
| October | 55°F | 79°F | 66°F | 2.9" |
| November | 42°F | 69°F | 54°F | 1.3" |
| December | 29°F | 55°F | 40°F | 3.0" |
| Index | Frederick | Oklahoma | National |
| Air quality index | 43 | 55 | 42 |
| Pollution index | 227,584 | 1,271,533 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 285 |
| Days with moderate air quality | 80 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.001% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Davidson, OK | 289 | 26 | 48.0% |
| Manitou, OK | 247 | 43 | 14.0% |
| Tipton, OK | 753 | 43 | 14.0% |
| Loveland, OK | 5 | 43 | 14.0% |
| Hollister, OK | 52 | 43 | 14.0% |
| Frederick, OK | 3,604 | 43 | 14.0% |
| City | Population | Air Quality Index | National Avg. |
| Fairbury, IL | 3,604 | 44 | 12.0% |
| Pine Lawn, MO | 3,604 | 54 | 8.0% |
| Delta, UT | 3,604 | 46 | 8.0% |
| Saluda, SC | 3,603 | 47 | 6.0% |
| Okanagan-Similkameen C, BC | 3,603 | n/a | |
| Frederick, OK | 3,604 | 43 | 14.0% |
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