| Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
| January | 39°F | 69°F | 53°F | 4.6" |
| February | 40°F | 68°F | 54°F | 3.4" |
| March | 44°F | 70°F | 56°F | 1.6" |
| April | 46°F | 72°F | 59°F | 1.3" |
| May | 53°F | 73°F | 62°F | 0.8" |
| June | 57°F | 76°F | 66°F | 0.1" |
| July | 60°F | 80°F | 69°F | 0.2" |
| August | 60°F | 81°F | 69°F | 0.1" |
| September | 57°F | 82°F | 69°F | 0.3" |
| October | 50°F | 79°F | 64°F | 1.2" |
| November | 43°F | 75°F | 57°F | 1.6" |
| December | 38°F | 68°F | 52°F | 3.8" |
| Index | Pala | California | National |
| Air quality index | 64 | 55 | 42 |
| Pollution index | 162,740 | 10,473,190 | 2,726,193 |
| Measurement | Total |
| Days measured | 365 |
| Days with good air quality | 87 |
| Days with moderate air quality | 253 |
| Days w/ poor A.Q. for sensitive groups | 23 |
| Days with unhealthy air quality | 2 |
| Pollutant | Total |
| Arsenic | 0.000% |
| Benzene | 0.003% |
| Carbon Tetrachloride | 0.000% |
| Lead | 0.000% |
| Mercury | 0.000% |
| City | Population | Air Quality Index | National Avg. |
| Fallbrook, CA | 33,110 | 64 | 28.0% |
| Vista, CA | 102,779 | 64 | 28.0% |
| Hidden Meadows, CA | 3,812 | 64 | 28.0% |
| Bonsall, CA | 4,280 | 64 | 28.0% |
| Camp Pendleton North, CA | 8,082 | 64 | 28.0% |
| Pala, CA | 1,129 | 64 | 28.0% |
| City | Population | Air Quality Index | National Avg. |
| Archer, FL | 1,129 | 35 | 30.0% |
| Crescent Beach, FL | 1,129 | 31 | 38.0% |
| Jamestown, IN | 1,129 | 54 | 8.0% |
| Harbor Springs, MI | 1,129 | 36 | 28.0% |
| Park City, MT | 1,129 | 21 | 58.0% |
| Pala, CA | 1,129 | 64 | 28.0% |
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