Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 36°F | 60°F | 46°F | 6.0" |
February | 39°F | 64°F | 50°F | 5.7" |
March | 41°F | 67°F | 52°F | 4.6" |
April | 43°F | 71°F | 55°F | 2.4" |
May | 46°F | 77°F | 60°F | 1.1" |
June | 50°F | 83°F | 64°F | 0.4" |
July | 52°F | 85°F | 65°F | 0.0" |
August | 52°F | 84°F | 64°F | 0.0" |
September | 49°F | 85°F | 64°F | 0.2" |
October | 46°F | 78°F | 59°F | 2.0" |
November | 41°F | 67°F | 52°F | 3.2" |
December | 36°F | 59°F | 46°F | 6.9" |
Index | Middletown | California | National |
Air quality index | 31 | 55 | 42 |
Pollution index | 360,238 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 360 |
Days with good air quality | 360 |
Days with moderate air quality | 0 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.002% |
Benzene | 0.004% |
Carbon Tetrachloride | 0.000% |
Lead | 0.002% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Clearlake, CA | 15,329 | 31 | 38.0% |
Clearlake Riviera, CA | 4,408 | 31 | 38.0% |
Cobb, CA | 805 | 31 | 38.0% |
Lower Lake, CA | 1,065 | 31 | 38.0% |
Hidden Valley Lake, CA | 5,948 | 31 | 38.0% |
Middletown, CA | 725 | 31 | 38.0% |
City | Population | Air Quality Index | National Avg. |
Homestead Base, FL | 725 | 41 | 18.0% |
Blairsville, GA | 725 | 37 | 26.0% |
Wellsburg, IA | 725 | 39 | 22.0% |
Pembroke, KY | 725 | 40 | 20.0% |
Chesapeake City, MD | 725 | 42 | 16.0% |
Middletown, CA | 725 | 31 | 38.0% |