TODAY JUN19
TEMPERATURE72
HUMIDITY100
PRESSURE29.94
WIND COND. 5.8
  • 7161Tue70%40%
  • 7461Wed30%30%
  • 7359Thu30%30%
  • 6958Fri40%40%
  • 7560Sat20%20%
daynightWeather update from Decorah at

Ossian Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January-17°F55°F23°Fn/a
February-18°F55°F22°Fn/a
March-6°F81°F35°Fn/a
April19°F88°F49°Fn/a
May30°F90°F59°Fn/a
June45°F93°F70°Fn/a
July52°F95°F73°Fn/a
August48°F91°F70°Fn/a
September32°F90°F63°Fn/a
October23°F90°F52°Fn/a
November9°F73°F39°Fn/a
December-6°F52°F25°Fn/a

Did you know?

  • The highest monthly average temperature in Ossian for July is 73 degrees.
  • The lowest monthly average temperature in Ossian for February is 22 degrees.
  • The most monthly precipitation in Ossian occurs in January with 0 inches.
  • The air quality index in Ossian is 13% better than the national average.
  • The pollution index in Ossian is 89% better than the national average.

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Compare Ossian, IA Weather To Other Cities

Ossian air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexOssianIowaNational
Air quality index433950
Pollution index530,4841,643,8365,066,862

Ossian air quality information

MeasurementTotal
Days measured365
Days with good air quality240
Days with moderate air quality122
Days w/ poor A.Q. for sensitive groups3
Days with unhealthy air quality

Ossian air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.001%
Lead0.002%
Mercury0.000%

Average monthly Ossian temperature with heat index

Ossian monthly precipitation with daily maximum

Ossian monthly snow depth with daily maximum

Ossian monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Decorah, IA7,9854020%
Postville, IA2,2814020%
Castalia, IA1884020%
Ridgeway, IA2854020%
Waukon, IA3,7864020%
Ossian, IA9624314%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Windfall City, IN9624216%
Jasper, MO962325550%
Haxtun, CO9622060%
Parkin, AR9624412%
Walker, MN9622942%
Ossian, IA9624314%
Source: The Ossian, IA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.