Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 48°F | 70°F | 58°F | 3.5" |
February | 50°F | 70°F | 59°F | 2.9" |
March | 52°F | 72°F | 61°F | 1.5" |
April | 55°F | 74°F | 63°F | 0.7" |
May | 58°F | 75°F | 65°F | 0.5" |
June | 61°F | 78°F | 68°F | 0.0" |
July | 65°F | 83°F | 72°F | 0.0" |
August | 65°F | 84°F | 73°F | 0.0" |
September | 64°F | 85°F | 72°F | 0.3" |
October | 60°F | 81°F | 69°F | 0.7" |
November | 54°F | 75°F | 63°F | 0.8" |
December | 48°F | 69°F | 57°F | 2.8" |
Index | San Marino | California | National |
Air quality index | 72 | 55 | 42 |
Pollution index | 139,490,000 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 66 |
Days with moderate air quality | 208 |
Days w/ poor A.Q. for sensitive groups | 62 |
Days with unhealthy air quality | 28 |
Pollutant | Total |
Arsenic | 0.200% |
Benzene | 0.950% |
Carbon Tetrachloride | 0.080% |
Lead | 1.320% |
Mercury | 0.440% |
City | Population | Air Quality Index | National Avg. |
Azusa, CA | 49,584 | 72 | 44.0% |
Citrus, CA | 10,105 | 72 | 44.0% |
Irwindale, CA | 1,365 | 72 | 44.0% |
Valinda, CA | 22,665 | 72 | 44.0% |
West Puente Valley, CA | 23,555 | 72 | 44.0% |
San Marino, CA | 13,020 | 72 | 44.0% |
City | Population | Air Quality Index | National Avg. |
Lloydminster (Part), SK | 13,022 | n/a | |
Coolidge, AZ | 13,016 | 74 | 48.0% |
Red Oak, TX | 13,010 | 51 | 2.0% |
Butler, PA | 13,008 | 31 | 38.0% |
Dunmore, PA | 13,008 | 38 | 24.0% |
San Marino, CA | 13,020 | 72 | 44.0% |