| 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 | Monson | California | National |
| Air quality index | 66 | 55 | 42 |
| Pollution index | 21,828,100 | 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 | 0.160% |
| Benzene | 0.440% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.100% |
| Mercury | 0.200% |
| City | Population | Air Quality Index | National Avg. |
| Kingsburg, CA | 12,116 | 56 | 12.0% |
| Del Rey, CA | 1,246 | 60 | 20.0% |
| Parlier, CA | 15,645 | 60 | 20.0% |
| Sanger, CA | 26,744 | 60 | 20.0% |
| Goshen, CA | 5,387 | 66 | 32.0% |
| Monson, CA | 210 | 66 | 32.0% |
| City | Population | Air Quality Index | National Avg. |
| Cantwell, AK | 210 | 38 | 24.0% |
| Shungnak, AK | 210 | 38 | 24.0% |
| White Hills, AZ | 210 | 54 | 8.0% |
| Point Reyes Station, CA | 210 | 34 | 32.0% |
| Parnell, IA | 210 | 35 | 30.0% |
| Monson, CA | 210 | 66 | 32.0% |
Here are the best places to live in California
10 best cities to buy a new house in California
10 Best cities in California for employment
These are the 10 most affordable cities in California