Defiance, IA Weather - Forecast & Monthly Averages

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TEMPERATURE	68
HUMIDITY	100
PRESSURE	101630
WIND COND.	310 18.4

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Weather Quick Facts

The highest monthly average temperature in Defiance for July is 76.1 degrees
The lowest monthly average temperature in Defiance for January is 22.3 degrees
The most monthly precipitation in Defiance occurs in June with 5.1 inches
The air quality index in Defiance is 5% better than the national average
The pollution index in Defiance is 81% better than the national average

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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"

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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	40	39	42
Pollution index	517,691	1,154,535	2,726,193

Defiance air quality

Measurement	Total
Days measured	365
Days with good air quality	283
Days with moderate air quality	82
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

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	Population	Air Quality Index	National Avg.
Denison, IA	8,319	35	30.0%
Westphalia, IA	161	40	20.0%
Portsmouth, IA	171	40	20.0%
Manilla, IA	826	40	20.0%
Arion, IA	106	40	20.0%
Defiance, IA	216	40	20.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Morrison Crossroads, AL	216	38	24.0%
Cypress, IL	216	44	12.0%
Rantoul, KS	216	41	18.0%
Fountain, MI	216	36	28.0%
Heidelberg, MN	216	46	8.0%
Defiance, IA	216	40	20.0%

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.