Union, IA Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Union for July is 73.9 degrees
The lowest monthly average temperature in Union for December is 19.6 degrees
The most monthly precipitation in Union occurs in May with 8 inches
The air quality index in Union is 12% better than the national average
The pollution index in Union is 57% better than the national average

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Union 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	12°F	28°F	20°F	1.5"
February	14°F	30°F	22°F	2.6"
March	29°F	50°F	38°F	5.4"
April	38°F	62°F	50°F	7.2"
May	51°F	73°F	61°F	8.0"
June	62°F	83°F	72°F	7.9"
July	63°F	85°F	74°F	5.1"
August	62°F	82°F	72°F	6.6"
September	55°F	79°F	66°F	5.4"
October	44°F	65°F	54°F	5.7"
November	28°F	49°F	38°F	2.2"
December	13°F	26°F	20°F	1.8"

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Union 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	Union	Iowa	National
Air quality index	37	39	42
Pollution index	1,171,930	1,154,535	2,726,193

Union air quality

Measurement	Total
Days measured	214
Days with good air quality	210
Days with moderate air quality	4
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Air quality details

Pollutant	Total
Arsenic	0.060%
Benzene	0.010%
Carbon Tetrachloride	0.002%
Lead	0.004%
Mercury	0.050%

Average monthly Union temperature with heat index

Union monthly precipitation with daily maximum

Union monthly snow depth with daily maximum

Union monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Albion, IA	644	37	26.0%
Liscomb, IA	381	37	26.0%
St. Anthony, IA	29	37	26.0%
Whitten, IA	137	37	26.0%
Hubbard, IA	771	37	26.0%
Union, IA	412	37	26.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Damascus, AR	412	45	10.0%
Lake View, AR	412	43	14.0%
Titonka, IA	412	15	70.0%
Loraine, IL	412	41	18.0%
Betterton, MD	412	46	8.0%
Union, IA	412	37	26.0%

Source: The Union, 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.