Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 25°F | 46°F | 34°F | 1.7" |
February | 27°F | 53°F | 39°F | 1.5" |
March | 31°F | 58°F | 43°F | 1.5" |
April | 33°F | 64°F | 48°F | 1.0" |
May | 40°F | 74°F | 57°F | 0.9" |
June | 47°F | 83°F | 65°F | 0.8" |
July | 55°F | 94°F | 75°F | 0.2" |
August | 52°F | 93°F | 73°F | 0.2" |
September | 45°F | 85°F | 64°F | 0.2" |
October | 37°F | 70°F | 52°F | 1.3" |
November | 30°F | 54°F | 41°F | 1.5" |
December | 25°F | 45°F | 34°F | 2.2" |
Index | Hornbrook | California | National |
Air quality index | 36 | 55 | 42 |
Pollution index | 13,842,600 | 10,473,190 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 295 |
Days with moderate air quality | 63 |
Days w/ poor A.Q. for sensitive groups | 3 |
Days with unhealthy air quality | 4 |
Pollutant | Total |
Arsenic | 0.020% |
Benzene | 0.210% |
Carbon Tetrachloride | 0.030% |
Lead | 0.030% |
Mercury | 0.020% |
City | Population | Air Quality Index | National Avg. |
Montague, CA | 1,519 | 36 | 28.0% |
Yreka, CA | 7,589 | 36 | 28.0% |
Hornbrook, CA | 243 | 36 | 28.0% |
City | Population | Air Quality Index | National Avg. |
Koyuk, AK | 243 | 38 | 24.0% |
Malcolm, AL | 243 | 42 | 16.0% |
East Globe, AZ | 243 | 60 | 20.0% |
McNeal, AZ | 243 | 45 | 10.0% |
Bloomfield, CA | 243 | 34 | 32.0% |
Hornbrook, CA | 243 | 36 | 28.0% |