| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 38°F | 58°F | 46°F | 4.2" |
| February | 40°F | 64°F | 51°F | 3.7" |
| March | 44°F | 71°F | 56°F | 3.5" |
| April | 48°F | 76°F | 61°F | 4.2" |
| May | 54°F | 86°F | 69°F | 1.1" |
| June | 60°F | 94°F | 77°F | 3.0" |
| July | 65°F | 98°F | 81°F | 0.5" |
| August | 63°F | 97°F | 79°F | 0.2" |
| September | 58°F | 93°F | 74°F | 2.3" |
| October | 50°F | 81°F | 64°F | 4.6" |
| November | 42°F | 68°F | 53°F | 3.1" |
| December | 36°F | 58°F | 45°F | 5.6" |
| Index | Dinuba | California | National |
| Air quality index | 66 | 55 | 42 |
| Pollution index | 2,235,730 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 127 |
| Days with moderate air quality | 157 |
| Days w/ poor A.Q. for sensitive groups | 78 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.030% |
| Benzene | 0.040% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.030% |
| Mercury | 0.070% |
| City | Population | Air Quality Index | National Avg. |
| Selma, CA | 24,405 | 56 | 12.0% |
| Kingsburg, CA | 12,116 | 56 | 12.0% |
| Minkler, CA | 968 | 60 | 20.0% |
| Sanger, CA | 26,744 | 60 | 20.0% |
| Parlier, CA | 15,645 | 60 | 20.0% |
| Dinuba, CA | 24,455 | 66 | 32.0% |
| City | Population | Air Quality Index | National Avg. |
| Fort Washington, MD | 24,468 | 47 | 6.0% |
| Farmington, UT | 24,439 | 51 | 2.0% |
| Essa, ON | 24,435 | n/a | |
| Brookings, SD | 24,479 | 42 | 16.0% |
| Derby, KS | 24,428 | 40 | 20.0% |
| Dinuba, CA | 24,455 | 66 | 32.0% |
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