| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 43°F | 63°F | 51°F | 3.0" |
| February | 45°F | 63°F | 53°F | 2.6" |
| March | 46°F | 63°F | 54°F | 2.7" |
| April | 47°F | 64°F | 55°F | 1.2" |
| May | 50°F | 65°F | 56°F | 0.3" |
| June | 52°F | 68°F | 59°F | 0.1" |
| July | 54°F | 69°F | 60°F | 0.0" |
| August | 55°F | 69°F | 60°F | 0.1" |
| September | 54°F | 71°F | 61°F | 0.1" |
| October | 51°F | 70°F | 60°F | 1.0" |
| November | 47°F | 66°F | 55°F | 1.6" |
| December | 42°F | 61°F | 51°F | 2.8" |
| Index | Monterey | California | National |
| Air quality index | 37 | 55 | 42 |
| Pollution index | 9,602,130 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 330 |
| Days with moderate air quality | 34 |
| Days w/ poor A.Q. for sensitive groups | 1 |
| Days with unhealthy air quality | 0 |
| Pollutant | Total |
| Arsenic | 0.070% |
| Benzene | 0.190% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.080% |
| Mercury | 0.070% |
| City | Population | Air Quality Index | National Avg. |
| Castroville, CA | 6,332 | 37 | 26.0% |
| Marina, CA | 21,966 | 37 | 26.0% |
| Salinas, CA | 156,177 | 37 | 26.0% |
| Boronda, CA | 1,740 | 37 | 26.0% |
| Del Monte Forest, CA | 3,783 | 37 | 26.0% |
| Monterey, CA | 28,575 | 37 | 26.0% |
| City | Population | Air Quality Index | National Avg. |
| Granite City, IL | 28,563 | 54 | 8.0% |
| Schererville, IN | 28,559 | 55 | 10.0% |
| Northampton, MA | 28,552 | 40 | 20.0% |
| Burton, MI | 28,598 | 38 | 24.0% |
| Lake in the Hills, IL | 28,617 | 42 | 16.0% |
| Monterey, CA | 28,575 | 37 | 26.0% |
Here are the best places to live in California
See the best places to live in Monterey
Safest States In The US
Check out the 10 most dangerous cities in California