Cornelius, OR Weather - Forecast & Monthly Averages

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TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Weather Quick Facts

The highest monthly average temperature in Cornelius for July is 67.8 degrees
The lowest monthly average temperature in Cornelius for January is 38.5 degrees
The most monthly precipitation in Cornelius occurs in December with 11.3 inches
The air quality index in Cornelius is 10% better than the national average
The pollution index in Cornelius is 456% worse than the national average

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Cornelius 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	32°F	47°F	38°F	4.1"
February	33°F	53°F	42°F	3.0"
March	38°F	60°F	48°F	4.8"
April	39°F	61°F	50°F	2.9"
May	45°F	70°F	57°F	4.8"
June	48°F	72°F	59°F	2.1"
July	53°F	83°F	68°F	1.3"
August	51°F	84°F	67°F	1.2"
September	44°F	75°F	59°F	2.8"
October	42°F	61°F	50°F	3.8"
November	33°F	52°F	42°F	7.5"
December	33°F	45°F	39°F	11.3"

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Cornelius 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	Cornelius	Oregon	National
Air quality index	38	32	42
Pollution index	15,149,900	7,156,356	2,726,193

Cornelius air quality

Measurement	Total
Days measured	365
Days with good air quality	285
Days with moderate air quality	77
Days w/ poor A.Q. for sensitive groups	3
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.160%
Carbon Tetrachloride	0.030%
Lead	0.080%
Mercury	0.010%

Average monthly Cornelius temperature with heat index

Cornelius monthly precipitation with daily maximum

Cornelius monthly snow depth with daily maximum

Cornelius monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Bull Mountain, OR	10,120	38	24.0%
King City, OR	4,445	38	24.0%
West Haven-Sylvan, OR	8,699	38	24.0%
North Plains, OR	2,785	38	24.0%
Yamhill, OR	1,380	38	24.0%
Cornelius, OR	13,194	38	24.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Jacksonville, AL	13,194	43	14.0%
Panama City Beach, FL	13,190	38	24.0%
South Sioux City, NE	13,187	35	30.0%
Fulton, MO	13,185	38	24.0%
Verde Village, AZ	13,203	43	14.0%
Cornelius, OR	13,194	38	24.0%

Source: The Cornelius, 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.