| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 27°F | 46°F | 35°F | 5.5" |
| February | 29°F | 51°F | 38°F | 6.1" |
| March | 32°F | 55°F | 42°F | 6.5" |
| April | 35°F | 62°F | 47°F | 3.2" |
| May | 41°F | 72°F | 55°F | 1.7" |
| June | 47°F | 80°F | 63°F | 1.4" |
| July | 52°F | 89°F | 71°F | 0.2" |
| August | 50°F | 88°F | 69°F | 0.1" |
| September | 44°F | 81°F | 61°F | 0.6" |
| October | 38°F | 67°F | 50°F | 2.8" |
| November | 32°F | 53°F | 41°F | 3.6" |
| December | 27°F | 45°F | 35°F | 6.7" |
| Index | Fall River Mills | California | National |
| Air quality index | 42 | 55 | 50 |
| Pollution index | 1,799,830 | 18,106,726 | 5,066,862 |
| Measurement | Total |
| Days measured | 364 |
| Days with good air quality | 311 |
| Days with moderate air quality | 53 |
| Days w/ poor A.Q. for sensitive groups | 0 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.010% |
| Benzene | 0.030% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.010% |
| Mercury | 0.004% |
| City, State | Population | Air Quality Index | National Avg. |
| Cassel, CA | 321 | 42 | 16% |
| Nubieber, CA | 19 | 42 | 16% |
| Hat Creek, CA | 248 | 42 | 16% |
| McArthur, CA | 481 | 42 | 16% |
| Burney, CA | 3,527 | 42 | 16% |
| Fall River Mills, CA | 304 | 42 | 16% |
| City, State | Population | Air Quality Index | National Avg. |
| Mount Gretna Heights, PA | 304 | 42 | 16% |
| Little York, IL | 304 | 32 | 36% |
| Kaw City, OK | 304 | 40 | 20% |
| Hollandale, MN | 304 | 36 | 28% |
| Jordan, MT | 304 | 21 | 58% |
| Fall River Mills, CA | 304 | 42 | 16% |
Here are the best places to live in California
Top 10 best public schools in Fall River Mills
10 best cities to buy a new house in California
Top 10 cities in California with the best education system