Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 35°F | 60°F | 45°F | 6.2" |
February | 38°F | 63°F | 48°F | 5.5" |
March | 40°F | 66°F | 51°F | 5.5" |
April | 42°F | 71°F | 55°F | 2.8" |
May | 47°F | 80°F | 62°F | 0.9" |
June | 52°F | 87°F | 68°F | 0.4" |
July | 56°F | 96°F | 74°F | 0.0" |
August | 54°F | 95°F | 72°F | 0.0" |
September | 50°F | 90°F | 68°F | 0.2" |
October | 45°F | 79°F | 59°F | 2.1" |
November | 40°F | 65°F | 51°F | 3.8" |
December | 35°F | 57°F | 44°F | 7.1" |
Index | Ukiah | California | National |
Air quality index | 33 | 55 | 42 |
Pollution index | 3,041,840 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 361 |
Days with good air quality | 334 |
Days with moderate air quality | 27 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.060% |
Benzene | 0.040% |
Carbon Tetrachloride | 0.000% |
Lead | 0.040% |
Mercury | 0.005% |
City | Population | Air Quality Index | National Avg. |
Calpella, CA | 620 | 33 | 34.0% |
Philo, CA | 156 | 33 | 34.0% |
Potter Valley, CA | 374 | 33 | 34.0% |
Talmage, CA | 1,136 | 33 | 34.0% |
Redwood Valley, CA | 1,812 | 33 | 34.0% |
Ukiah, CA | 15,963 | 33 | 34.0% |
City | Population | Air Quality Index | National Avg. |
Fairburn, GA | 15,956 | 52 | 4.0% |
Center Point, AL | 15,971 | 53 | 6.0% |
Hope Mills, NC | 15,972 | 41 | 18.0% |
Crowley, TX | 15,972 | 33 | 34.0% |
Brunswick, ME | 15,974 | 31 | 38.0% |
Ukiah, CA | 15,963 | 33 | 34.0% |