Waterloo, OR Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Waterloo for July is 68.2 degrees
The lowest monthly average temperature in Waterloo for December is 40.1 degrees
The most monthly precipitation in Waterloo occurs in January with 7.8 inches
The air quality index in Waterloo is 33% better than the national average
The pollution index in Waterloo is 97% better than the national average

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Waterloo 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	36°F	48°F	41°F	7.8"
February	37°F	53°F	44°F	4.4"
March	40°F	58°F	47°F	5.7"
April	41°F	64°F	51°F	3.3"
May	46°F	73°F	57°F	3.5"
June	51°F	78°F	62°F	1.9"
July	54°F	86°F	68°F	3.3"
August	54°F	86°F	68°F	2.1"
September	49°F	80°F	63°F	3.4"
October	44°F	67°F	54°F	5.6"
November	40°F	55°F	46°F	5.4"
December	35°F	47°F	40°F	7.2"

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Waterloo 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	Waterloo	Oregon	National
Air quality index	28	32	42
Pollution index	77,038	7,156,356	2,726,193

Waterloo air quality

Measurement	Total
Days measured	365
Days with good air quality	280
Days with moderate air quality	83
Days w/ poor A.Q. for sensitive groups	2
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.000%
Benzene	0.002%
Carbon Tetrachloride	0.000%
Lead	0.001%
Mercury	0.000%

Average monthly Waterloo temperature with heat index

Waterloo monthly precipitation with daily maximum

Waterloo monthly snow depth with daily maximum

Waterloo monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Halsey, OR	1,139	17	66.0%
Shedd, OR	290	17	66.0%
Crawfordsville, OR	441	28	44.0%
Sodaville, OR	406	28	44.0%
Tangent, OR	1,394	28	44.0%
Waterloo, OR	306	28	44.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Maytown, AL	306	53	6.0%
Waldo, AL	306	38	24.0%
Buckner, AR	306	39	22.0%
Romeo, CO	306	15	70.0%
Bostwick, GA	306	44	12.0%
Waterloo, OR	306	28	44.0%

Source: The Waterloo, 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.