Monmouth, IA Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Monmouth for July is 72.1 degrees
The lowest monthly average temperature in Monmouth for January is 19.4 degrees
The most monthly precipitation in Monmouth occurs in July with 6.9 inches
The air quality index in Monmouth is equal to the national average
The pollution index in Monmouth is 30% worse than the national average

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Monmouth 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	29°F	19°F	1.4"
February	12°F	32°F	22°F	1.9"
March	25°F	47°F	36°F	2.3"
April	36°F	62°F	49°F	4.9"
May	47°F	72°F	59°F	4.5"
June	58°F	81°F	69°F	5.3"
July	61°F	84°F	72°F	6.9"
August	59°F	81°F	70°F	4.2"
September	51°F	76°F	63°F	3.2"
October	40°F	63°F	51°F	3.4"
November	28°F	49°F	38°F	2.2"
December	15°F	33°F	24°F	2.5"

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Monmouth 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	Monmouth	Iowa	National
Air quality index	42	39	42
Pollution index	3,556,270	1,154,535	2,726,193

Monmouth air quality

Measurement	Total
Days measured	364
Days with good air quality	268
Days with moderate air quality	96
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.060%
Benzene	0.020%
Carbon Tetrachloride	0.002%
Lead	0.020%
Mercury	0.040%

Average monthly Monmouth temperature with heat index

Monmouth monthly precipitation with daily maximum

Monmouth monthly snow depth with daily maximum

Monmouth monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Clarence, IA	1,151	35	30.0%
Stanwood, IA	673	35	30.0%
Onslow, IA	304	39	22.0%
Olin, IA	966	39	22.0%
Wyoming, IA	452	39	22.0%
Monmouth, IA	131	42	16.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Lester, AL	131	27	46.0%
St. Paul, AR	131	44	12.0%
Genoa, CO	131	45	10.0%
Hartwick, IA	131	39	22.0%
Marne, IA	131	40	20.0%
Monmouth, IA	131	42	16.0%

Source: The Monmouth, 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.