Monmouth, OR Weather - Forecast & Monthly Averages

TEMPERATURE	44
HUMIDITY	98
PRESSURE
WIND COND.	226 3.2

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Weather Quick Facts

The highest monthly average temperature in Monmouth for August is 68.9 degrees
The lowest monthly average temperature in Monmouth for December is 40 degrees
The most monthly precipitation in Monmouth occurs in December with 7.4 inches
The air quality index in Monmouth is 24% better than the national average
The pollution index in Monmouth is 17% 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	34°F	49°F	41°F	5.6"
February	35°F	53°F	43°F	4.1"
March	37°F	58°F	47°F	5.4"
April	39°F	63°F	50°F	2.9"
May	45°F	71°F	57°F	2.3"
June	50°F	76°F	62°F	1.3"
July	54°F	86°F	69°F	0.3"
August	54°F	86°F	69°F	0.4"
September	50°F	80°F	63°F	1.8"
October	43°F	66°F	54°F	4.1"
November	38°F	55°F	46°F	6.7"
December	33°F	48°F	40°F	7.4"

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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	Oregon	National
Air quality index	32	32	42
Pollution index	3,182,180	7,156,356	2,726,193

Monmouth air quality

Measurement	Total
Days measured	356
Days with good air quality	302
Days with moderate air quality	54
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.040%
Carbon Tetrachloride	0.030%
Lead	0.190%
Mercury	0.110%

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.
Kings Valley, OR	194	17	66.0%
Adair Village, OR	1,107	28	44.0%
Marion, OR	416	28	44.0%
Millersburg, OR	2,234	28	44.0%
Jefferson, OR	3,348	28	44.0%
Monmouth, OR	10,411	32	36.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Cape Canaveral, FL	10,411	36	28.0%
Portage, WI	10,412	35	30.0%
Mono, ON	10,413	n/a
Frederick, CO	10,414	47	6.0%
Fort Madison, IA	10,407	29	42.0%
Monmouth, OR	10,411	32	36.0%

Source: The Monmouth, OR 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.