Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 38°F | 58°F | 47°F | 2.4" |
February | 42°F | 64°F | 52°F | 1.9" |
March | 46°F | 70°F | 57°F | 1.7" |
April | 49°F | 76°F | 61°F | 1.3" |
May | 54°F | 85°F | 69°F | 0.4" |
June | 60°F | 93°F | 76°F | 0.2" |
July | 64°F | 98°F | 80°F | 0.0" |
August | 63°F | 96°F | 78°F | 0.0" |
September | 59°F | 91°F | 74°F | 0.1" |
October | 52°F | 80°F | 64°F | 0.7" |
November | 44°F | 68°F | 54°F | 1.1" |
December | 38°F | 58°F | 47°F | 2.3" |
Index | Vallecito | California | National |
Air quality index | 39 | 55 | 42 |
Pollution index | 1,947,800 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 331 |
Days with moderate air quality | 33 |
Days w/ poor A.Q. for sensitive groups | 1 |
Days with unhealthy air quality |
Pollutant | Total |
Arsenic | 0.003% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.000% |
Lead | 0.010% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Avery, CA | 444 | 39 | 22.0% |
Copperopolis, CA | 3,566 | 39 | 22.0% |
Jamestown, CA | 3,379 | 39 | 22.0% |
Phoenix Lake, CA | 4,820 | 39 | 22.0% |
Tuolumne City, CA | 1,414 | 39 | 22.0% |
Vallecito, CA | 132 | 39 | 22.0% |
City | Population | Air Quality Index | National Avg. |
Yellow Bluff, AL | 132 | 52 | 4.0% |
Otter Creek, FL | 132 | 35 | 30.0% |
Blockton, IA | 132 | 43 | 14.0% |
Geneva, IA | 132 | 15 | 70.0% |
Havelock, IA | 132 | 37 | 26.0% |
Vallecito, CA | 132 | 39 | 22.0% |