Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 37°F | 60°F | 47°F | 5.6" |
February | 41°F | 64°F | 52°F | 4.8" |
March | 45°F | 69°F | 56°F | 4.6" |
April | 47°F | 74°F | 60°F | 2.5" |
May | 52°F | 82°F | 67°F | 0.7" |
June | 57°F | 91°F | 74°F | 0.3" |
July | 60°F | 96°F | 77°F | 0.0" |
August | 59°F | 95°F | 75°F | 0.0" |
September | 56°F | 92°F | 73°F | 0.1" |
October | 50°F | 81°F | 64°F | 1.9" |
November | 43°F | 68°F | 54°F | 2.3" |
December | 37°F | 59°F | 47°F | 4.6" |
Index | Winters | California | National |
Air quality index | 35 | 55 | 42 |
Pollution index | 2,457,150 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 363 |
Days with good air quality | 330 |
Days with moderate air quality | 31 |
Days w/ poor A.Q. for sensitive groups | 2 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.080% |
Carbon Tetrachloride | 0.002% |
Lead | 0.010% |
Mercury | 0.020% |
City | Population | Air Quality Index | National Avg. |
Allendale, CA | 1,429 | 35 | 30.0% |
Esparto, CA | 4,009 | 35 | 30.0% |
Moskowite Corner, CA | 69 | 35 | 30.0% |
Hartley, CA | 2,655 | 35 | 30.0% |
Vacaville, CA | 99,958 | 35 | 30.0% |
Winters, CA | 7,285 | 35 | 30.0% |
City | Population | Air Quality Index | National Avg. |
Monessen, PA | 7,287 | 56 | 12.0% |
North Amherst, MA | 7,290 | 40 | 20.0% |
Fort Bragg, CA | 7,279 | 33 | 34.0% |
Bellbrook, OH | 7,277 | 47 | 6.0% |
Olivarez, TX | 7,293 | 42 | 16.0% |
Winters, CA | 7,285 | 35 | 30.0% |