Brentwood-Darlington, Portland, OR Weather - Forecast & Monthly Averages

TEMPERATURE	48
HUMIDITY	73
PRESSURE	101490
WIND COND.	110 16.6

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Weather Quick Facts

The highest monthly average temperature in Brentwood-Darlington for August is 69.5 degrees
The lowest monthly average temperature in Brentwood-Darlington for December is 39.9 degrees
The most monthly precipitation in Brentwood-Darlington occurs in November with 6.2 inches
The air quality index in Brentwood-Darlington is 10% better than the national average
The pollution index in Brentwood-Darlington is 789% worse than the national average

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Brentwood-Darlington 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	48°F	40°F	4.9"
February	36°F	53°F	43°F	3.4"
March	39°F	58°F	48°F	4.8"
April	42°F	63°F	52°F	3.0"
May	48°F	71°F	58°F	2.8"
June	53°F	76°F	63°F	1.7"
July	57°F	84°F	69°F	0.5"
August	58°F	85°F	70°F	0.5"
September	53°F	78°F	64°F	1.8"
October	47°F	66°F	55°F	3.7"
November	40°F	55°F	47°F	6.2"
December	34°F	47°F	40°F	6.2"

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Brentwood-Darlington 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	Brentwood-Darlington	Portland	Oregon
Air quality index	38	38	32
Pollution index	24,235,400	1,899,410	7,156,356

Brentwood-Darlington 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	0.003%
Benzene	0.020%
Carbon Tetrachloride	0.010%
Lead	0.010%
Mercury	0.002%

Average monthly Brentwood-Darlington temperature with heat index

Brentwood-Darlington monthly precipitation with daily maximum

Brentwood-Darlington monthly snow depth with daily maximum

Brentwood-Darlington monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Sherwood, OR	19,745	38	24.0%
Wilsonville, OR	24,413	38	24.0%
Aloha, OR	53,724	38	24.0%
Oak Hills, OR	11,682	38	24.0%
Vancouver, WA	182,792	38	24.0%
Portland, OR	650,380	38	24.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Memphis, TN	650,910	45	10.0%
Oklahoma City, OK	649,821	48	4.0%
Las Vegas, NV	644,594	54	8.0%
Nashville, TN	667,070	45	10.0%
Detroit, MI	672,351	56	12.0%
Portland, OR	650,380	38	24.0%

Source: The Brentwood-Darlington, Portland, 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.