Southwest Hills, Portland, OR Weather - Forecast & Monthly Averages

TEMPERATURE	46
HUMIDITY	86
PRESSURE	101900
WIND COND.	120 18.4

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Weather Quick Facts

The highest monthly average temperature in Southwest Hills for August is 69.5 degrees
The lowest monthly average temperature in Southwest Hills for December is 39.9 degrees
The most monthly precipitation in Southwest Hills occurs in November with 6.2 inches
The air quality index in Southwest Hills is 10% better than the national average
The pollution index in Southwest Hills is 19% worse than the national average

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Southwest Hills 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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Southwest Hills 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	Southwest Hills	Portland	Oregon
Air quality index	38	38	32
Pollution index	3,247,580	1,899,410	7,156,356

Southwest Hills 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 Southwest Hills temperature with heat index

Southwest Hills monthly precipitation with daily maximum

Southwest Hills monthly snow depth with daily maximum

Southwest Hills monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Newberg, OR	23,676	38	24.0%
Stafford, OR	1,940	38	24.0%
Damascus, OR	10,973	38	24.0%
Aloha, OR	53,724	38	24.0%
Oak Hills, OR	11,682	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 Southwest Hills, 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.