Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 36°F | 68°F | 51°F | 2.8" |
February | 37°F | 68°F | 51°F | 2.8" |
March | 39°F | 71°F | 54°F | 1.5" |
April | 42°F | 73°F | 57°F | 0.9" |
May | 48°F | 77°F | 61°F | 0.5" |
June | 51°F | 85°F | 67°F | 0.0" |
July | 57°F | 90°F | 72°F | 0.3" |
August | 57°F | 91°F | 73°F | 0.1" |
September | 55°F | 90°F | 71°F | 0.2" |
October | 48°F | 82°F | 63°F | 0.7" |
November | 41°F | 75°F | 57°F | 1.1" |
December | 36°F | 66°F | 50°F | 3.2" |
Index | Harbison Canyon | 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. |
Jamul, CA | 5,776 | 64 | 28.0% |
Potrero, CA | 250 | 64 | 28.0% |
Alpine, CA | 14,958 | 64 | 28.0% |
El Cajon, CA | 103,249 | 64 | 28.0% |
La Mesa, CA | 60,208 | 64 | 28.0% |
Harbison Canyon, CA | 4,355 | 64 | 28.0% |
City | Population | Air Quality Index | National Avg. |
Northern Bruce Peninsula, ON | 4,355 | n/a | |
Caldwell, TX | 4,354 | 44 | 12.0% |
Mauston, WI | 4,354 | 35 | 30.0% |
St. Bernard, OH | 4,353 | 54 | 8.0% |
Oak Grove, TN | 4,353 | 45 | 10.0% |
Harbison Canyon, CA | 4,355 | 64 | 28.0% |