Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 44°F | 70°F | 56°F | 1.6" |
February | 45°F | 72°F | 57°F | 1.2" |
March | 47°F | 75°F | 60°F | 0.7" |
April | 50°F | 78°F | 63°F | 0.5" |
May | 55°F | 82°F | 66°F | 0.2" |
June | 59°F | 89°F | 72°F | 0.0" |
July | 65°F | 94°F | 77°F | 0.2" |
August | 65°F | 95°F | 78°F | 0.1" |
September | 63°F | 94°F | 76°F | 0.2" |
October | 56°F | 85°F | 69°F | 0.2" |
November | 49°F | 77°F | 62°F | 0.5" |
December | 44°F | 69°F | 55°F | 1.9" |
Index | Grand Terrace | California | National |
Air quality index | 89 | 55 | 42 |
Pollution index | 31,575,300 | 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 | 0.110% |
Benzene | 0.260% |
Carbon Tetrachloride | 0.020% |
Lead | 0.350% |
Mercury | 0.280% |
City | Population | Air Quality Index | National Avg. |
Calimesa, CA | 9,156 | 89 | 78.0% |
Loma Linda, CA | 24,239 | 89 | 78.0% |
Riverside, CA | 327,569 | 89 | 78.0% |
El Sobrante CDP (Contra Costa County), CA | 12,963 | 89 | 78.0% |
Lakeview, CA | 2,452 | 89 | 78.0% |
Grand Terrace, CA | 12,559 | 89 | 78.0% |
City | Population | Air Quality Index | National Avg. |
Leeds, AL | 12,555 | 53 | 6.0% |
Bedford, OH | 12,555 | 50 | = 100 |
Mandeville, LA | 12,567 | 30 | 40.0% |
Gulf Shores, AL | 12,550 | 37 | 26.0% |
Vinings, GA | 12,546 | 52 | 4.0% |
Grand Terrace, CA | 12,559 | 89 | 78.0% |