Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 22°F | 35°F | 29°F | 7.9" |
February | 18°F | 32°F | 25°F | 3.3" |
March | 33°F | 51°F | 42°F | 4.8" |
April | 42°F | 63°F | 53°F | 4.5" |
May | 54°F | 75°F | 67°F | 4.0" |
June | 65°F | 83°F | 75°F | 7.3" |
July | 65°F | 83°F | 76°F | 6.5" |
August | 66°F | 84°F | 77°F | 8.2" |
September | 59°F | 81°F | 71°F | 11.9" |
October | 49°F | 67°F | 59°F | 4.4" |
November | 35°F | 51°F | 43°F | 7.4" |
December | 23°F | 34°F | 29°F | 4.1" |
Index | Royal Center | Indiana | National |
Air quality index | 37 | 56 | 42 |
Pollution index | 2,150,900 | 2,719,453 | 2,726,193 |
Measurement | Total |
Days measured | 351 |
Days with good air quality | 319 |
Days with moderate air quality | 32 |
Days w/ poor A.Q. for sensitive groups | 0 |
Days with unhealthy air quality | 0 |
Pollutant | Total |
Arsenic | 0.010% |
Benzene | 0.030% |
Carbon Tetrachloride | 0.004% |
Lead | 0.650% |
Mercury | 1.040% |
City | Population | Air Quality Index | National Avg. |
Winamac, IN | 2,634 | 37 | 26.0% |
Walton, IN | 908 | 37 | 26.0% |
Fulton, IN | 251 | 37 | 26.0% |
Logansport, IN | 17,968 | 37 | 26.0% |
Kewanna, IN | 440 | 37 | 26.0% |
Royal Center, IN | 890 | 37 | 26.0% |
City | Population | Air Quality Index | National Avg. |
Hot Sulphur Springs, CO | 890 | 47 | 6.0% |
Walker, MN | 890 | 29 | 42.0% |
El Rancho Vela, TX | 890 | 42 | 16.0% |
Argyle, WI | 890 | 29 | 42.0% |
Deschaillons-sur-Saint-Laurent, QC | 890 | n/a | |
Royal Center, IN | 890 | 37 | 26.0% |