Sioux City, IA Weather - Forecast & Monthly Averages

TEMPERATURE	30
HUMIDITY	100
PRESSURE	102170
WIND COND.	180 20.5

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Weather Quick Facts

The highest monthly average temperature in Sioux City for July is 76 degrees
The lowest monthly average temperature in Sioux City for January is 21 degrees
The most monthly precipitation in Sioux City occurs in August with 5.6 inches
The air quality index in Sioux City is 17% better than the national average
The pollution index in Sioux City is 85% better than the national average

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Sioux City 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	10°F	33°F	21°F	0.7"
February	13°F	38°F	24°F	0.8"
March	26°F	53°F	38°F	1.5"
April	37°F	66°F	51°F	3.5"
May	48°F	77°F	62°F	4.2"
June	59°F	86°F	72°F	4.9"
July	63°F	89°F	76°F	3.5"
August	60°F	86°F	73°F	5.6"
September	51°F	81°F	65°F	3.1"
October	38°F	68°F	52°F	3.0"
November	25°F	53°F	38°F	1.1"
December	13°F	36°F	24°F	1.7"

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Sioux City 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	Sioux City	Iowa	National
Air quality index	35	39	42
Pollution index	397,267	1,154,535	2,726,193

Sioux City air quality

Measurement	Total
Days measured	364
Days with good air quality	322
Days with moderate air quality	42
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	0.000%
Mercury	0.000%

Average monthly Sioux City temperature with heat index

Sioux City monthly precipitation with daily maximum

Sioux City monthly snow depth with daily maximum

Sioux City monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Hinton, IA	805	35	30.0%
Dakota City, NE	2,249	35	30.0%
South Sioux City, NE	12,867	35	30.0%
Elk Point, SD	2,102	35	30.0%
Lawton, IA	1,055	35	30.0%
Sioux City, IA	82,535	35	30.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Kennewick, WA	82,633	37	26.0%
Melbourne, FL	82,281	36	28.0%
Chino Hills, CA	82,800	89	78.0%
Buena Park, CA	82,228	72	44.0%
Longview, TX	82,183	37	26.0%
Sioux City, IA	82,535	35	30.0%

Source: The Sioux City, 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.