| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 14°F | 44°F | 28°F | 13.0" |
| February | 18°F | 46°F | 31°F | 0.6" |
| March | 24°F | 53°F | 38°F | 1.5" |
| April | 28°F | 59°F | 43°F | 1.5" |
| May | 35°F | 66°F | 51°F | 1.8" |
| June | 43°F | 77°F | 61°F | 7.0" |
| July | 47°F | 83°F | 67°F | 1.6" |
| August | 46°F | 82°F | 65°F | 0.7" |
| September | 40°F | 76°F | 59°F | 1.1" |
| October | 30°F | 65°F | 47°F | 4.7" |
| November | 22°F | 54°F | 36°F | 4.9" |
| December | 15°F | 45°F | 29°F | 4.1" |
| Index | Wawona | California | National |
| Air quality index | 50 | 55 | 42 |
| Pollution index | 1,108,380 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 189 |
| Days with moderate air quality | 163 |
| Days w/ poor A.Q. for sensitive groups | 13 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.020% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| El Portal, CA | 271 | 39 | 22.0% |
| Yosemite Valley, CA | 1,213 | 39 | 22.0% |
| Bootjack, CA | 431 | 48 | 4.0% |
| Ahwahnee, CA | 2,270 | 50 | = 100 |
| Nipinnawasee, CA | 388 | 50 | = 100 |
| Wawona, CA | 166 | 50 | = 100 |
| City | Population | Air Quality Index | National Avg. |
| Movico, AL | 166 | 42 | 16.0% |
| Sierraville, CA | 166 | 44 | 12.0% |
| Bethune, CO | 166 | 45 | 10.0% |
| Crook, CO | 166 | 19 | 62.0% |
| Olds, IA | 166 | 32 | 36.0% |
| Wawona, CA | 166 | 50 | = 100 |
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