| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 41°F | 68°F | 53°F | 3.6" |
| February | 44°F | 72°F | 57°F | 1.5" |
| March | 50°F | 80°F | 65°F | 2.3" |
| April | 56°F | 87°F | 72°F | 5.5" |
| May | 64°F | 94°F | 80°F | 8.4" |
| June | 75°F | 105°F | 92°F | 0.2" |
| July | 83°F | 107°F | 95°F | 8.1" |
| August | 81°F | 105°F | 93°F | 6.2" |
| September | 74°F | 100°F | 87°F | 2.8" |
| October | 60°F | 90°F | 75°F | 0.9" |
| November | 49°F | 78°F | 63°F | 1.4" |
| December | 41°F | 66°F | 52°F | 2.9" |
| Index | Peoria | Arizona | National |
| Air quality index | 74 | 57 | 42 |
| Pollution index | 4,063,380 | 9,766,019 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 50 |
| Days with moderate air quality | 261 |
| Days w/ poor A.Q. for sensitive groups | 42 |
| Days with unhealthy air quality | 2 |
| 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. |
| Goodyear Village, AZ | 277 | 74 | 48.0% |
| Surprise, AZ | 139,007 | 74 | 48.0% |
| Glendale, AZ | 250,290 | 74 | 48.0% |
| Citrus Park, AZ | 5,744 | 74 | 48.0% |
| Litchfield Park, AZ | 6,228 | 74 | 48.0% |
| Peoria, AZ | 172,109 | 74 | 48.0% |
| City | Population | Air Quality Index | National Avg. |
| Pembroke Pines, FL | 171,979 | 41 | 18.0% |
| Salem, OR | 171,806 | 32 | 36.0% |
| Garden Grove, CA | 172,800 | 72 | 44.0% |
| Elk Grove, CA | 173,370 | 52 | 4.0% |
| Sherbrooke, QC | 170,686 | n/a | |
| Peoria, AZ | 172,109 | 74 | 48.0% |
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