Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 48°F | 69°F | 57°F | 2.3" |
February | 49°F | 69°F | 58°F | 1.9" |
March | 52°F | 70°F | 60°F | 0.9" |
April | 54°F | 72°F | 62°F | 0.6" |
May | 59°F | 73°F | 65°F | 0.3" |
June | 62°F | 76°F | 67°F | 0.0" |
July | 66°F | 80°F | 71°F | 0.1" |
August | 66°F | 82°F | 72°F | 0.0" |
September | 65°F | 82°F | 72°F | 0.2" |
October | 60°F | 79°F | 68°F | 0.5" |
November | 54°F | 75°F | 63°F | 0.7" |
December | 48°F | 68°F | 57°F | 2.4" |
Index | Lake Forest | California | National |
Air quality index | 89 | 55 | 42 |
Pollution index | 44,192,600 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 42 |
Days with moderate air quality | 178 |
Days w/ poor A.Q. for sensitive groups | 79 |
Days with unhealthy air quality | 58 |
Pollutant | Total |
Arsenic | 0.030% |
Benzene | 0.280% |
Carbon Tetrachloride | 0.001% |
Lead | 0.220% |
Mercury | 0.140% |
City | Population | Air Quality Index | National Avg. |
Ladera Ranch, CA | 24,996 | 89 | 78.0% |
San Juan Capistrano, CA | 35,976 | 89 | 78.0% |
Temescal Valley, CA | 28,420 | 89 | 78.0% |
Laguna Woods, CA | 16,056 | 89 | 78.0% |
Newport Beach, CA | 86,694 | 89 | 78.0% |
Lake Forest, CA | 84,666 | 89 | 78.0% |
City | Population | Air Quality Index | National Avg. |
Largo, FL | 84,666 | 43 | 14.0% |
Danbury, CT | 84,650 | 43 | 14.0% |
Hemet, CA | 84,686 | 89 | 78.0% |
Bloomington, IN | 84,691 | 42 | 16.0% |
New Braunfels, TX | 84,622 | 49 | 2.0% |
Lake Forest, CA | 84,666 | 89 | 78.0% |