Defiance, IA Weather Forecast & Monthly Average Temperatures

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TEMPERATURE
HUMIDITY
PRESSURE	30.26
WIND COND.	10 16.1

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Defiance Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	13°F	33°F	22°F	0.4"
February	15°F	37°F	25°F	0.7"
March	29°F	54°F	40°F	1.4"
April	39°F	66°F	51°F	3.5"
May	51°F	77°F	63°F	4.0"
June	62°F	86°F	73°F	5.1"
July	65°F	89°F	76°F	3.0"
August	62°F	85°F	73°F	4.9"
September	53°F	79°F	65°F	3.9"
October	41°F	67°F	52°F	2.4"
November	28°F	52°F	39°F	0.9"
December	16°F	36°F	25°F	1.2"

Did you know?

The highest monthly average temperature in Defiance for July is 76 degrees.
The lowest monthly average temperature in Defiance for January is 22 degrees.
The most monthly precipitation in Defiance occurs in June with 5.1 inches.
The air quality index in Defiance is 3% better than the national average.
The pollution index in Defiance is 90% better than the national average.

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Defiance 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.
Index	Defiance	Iowa	National
Air quality index	48	39	50
Pollution index	517,691	1,643,836	5,066,862

Defiance air quality information

Measurement	Total
Days measured	365
Days with good air quality	197
Days with moderate air quality	164
Days w/ poor A.Q. for sensitive groups	4
Days with unhealthy air quality

Defiance air quality information

Pollutant	Total
Arsenic	0.000%
Benzene	0.010%
Carbon Tetrachloride	0.001%
Lead	0.002%
Mercury	0.000%

Average monthly Defiance temperature with heat index

Defiance monthly precipitation with daily maximum

Defiance monthly snow depth with daily maximum

Defiance monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Denison, IA	8,326	41	18%
Aspinwall, IA	18	48	4%
Dunlap, IA	1,021	48	4%
Jacksonville, IA	32	48	4%
Manning, IA	1,509	48	4%
Defiance, IA	240	48	4%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Port Lions, AK	240	29	42%
Mount Gretna, PA	240	43	14%
Amsterdam, MO	240	58	16%
Shanksville, PA	240	32	36%
Goldsmith, TX	240	30	40%
Defiance, IA	240	48	4%

Source: The Defiance, 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.