Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 16°F | 38°F | 26°F | 0.1" |
February | 19°F | 39°F | 28°F | 0.2" |
March | 28°F | 52°F | 39°F | 0.3" |
April | 33°F | 56°F | 43°F | 1.5" |
May | 41°F | 65°F | 52°F | 2.3" |
June | 51°F | 77°F | 63°F | 1.2" |
July | 58°F | 86°F | 72°F | 0.8" |
August | 55°F | 83°F | 69°F | 1.1" |
September | 47°F | 74°F | 59°F | 1.1" |
October | 37°F | 58°F | 46°F | 1.1" |
November | 26°F | 47°F | 36°F | 0.2" |
December | 14°F | 35°F | 24°F | 0.1" |
Index | Ralston | Wyoming | National |
Air quality index | 21 | 39 | 42 |
Pollution index | 218,962 | 1,779,975 | 2,726,193 |
Measurement | Total |
Days measured | 362 |
Days with good air quality | 357 |
Days with moderate air quality | 4 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 1 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.002% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Deaver, WY | 111 | 21 | 58.0% |
Garland, WY | 193 | 21 | 58.0% |
Powell, WY | 6,238 | 21 | 58.0% |
Cody, WY | 9,810 | 21 | 58.0% |
Ralston, WY | 432 | 21 | 58.0% |
City | Population | Air Quality Index | National Avg. |
Oak Grove, AR | 432 | 18 | 64.0% |
Pioneer, LA | 432 | 34 | 32.0% |
Kellogg, MN | 432 | 15 | 70.0% |
Freeville, NY | 432 | 34 | 32.0% |
Phillipsburg, OH | 432 | 47 | 6.0% |
Ralston, WY | 432 | 21 | 58.0% |