Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 3°F | 27°F | 15°F | 0.5" |
February | 6°F | 31°F | 17°F | 0.5" |
March | 19°F | 46°F | 31°F | 0.8" |
April | 30°F | 60°F | 44°F | 1.6" |
May | 40°F | 71°F | 55°F | 3.0" |
June | 51°F | 81°F | 66°F | 3.8" |
July | 57°F | 89°F | 73°F | 2.7" |
August | 54°F | 86°F | 69°F | 3.1" |
September | 45°F | 78°F | 60°F | 1.7" |
October | 33°F | 61°F | 46°F | 1.4" |
November | 19°F | 46°F | 31°F | 0.7" |
December | 6°F | 28°F | 16°F | 1.2" |
Index | Porcupine | North Dakota | National |
Air quality index | 36 | 35 | 42 |
Pollution index | 328,186 | 1,038,665 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 320 |
Days with moderate air quality | 45 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.000% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.000% |
Lead | 0.000% |
Mercury | 0.000% |
City | Population | Air Quality Index | National Avg. |
Raleigh, ND | 13 | 36 | 28.0% |
Selfridge, ND | 309 | 36 | 28.0% |
Solen, ND | 90 | 36 | 28.0% |
Porcupine, ND | 162 | 36 | 28.0% |
City | Population | Air Quality Index | National Avg. |
Beatrice, AL | 162 | 52 | 4.0% |
Chapin, IA | 162 | 15 | 70.0% |
Colburn, IN | 162 | 42 | 16.0% |
Tampa, KS | 162 | 22 | 56.0% |
Nebo, KY | 162 | 43 | 14.0% |
Porcupine, ND | 162 | 36 | 28.0% |