O'Brien, OR Weather - Forecast & Monthly Averages

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TEMPERATURE	55
HUMIDITY	86
PRESSURE
WIND COND.	225 1.6

Weather Quick Facts

The highest monthly average temperature in O'Brien for September is 59.1 degrees
The lowest monthly average temperature in O'Brien for December is 46.2 degrees
The most monthly precipitation in O'Brien occurs in November with 14.5 inches
The air quality index in O'Brien is 38% better than the national average
The pollution index in O'Brien is 408% worse than the national average

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O'Brien 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	40°F	56°F	47°F	14.3"
February	41°F	56°F	47°F	10.3"
March	42°F	56°F	48°F	14.1"
April	43°F	59°F	50°F	9.9"
May	47°F	64°F	54°F	6.0"
June	50°F	68°F	58°F	8.1"
July	52°F	69°F	59°F	2.7"
August	52°F	69°F	59°F	1.5"
September	52°F	71°F	59°F	6.0"
October	49°F	66°F	56°F	11.9"
November	44°F	58°F	50°F	14.5"
December	40°F	54°F	46°F	14.1"

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O'Brien 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	O'Brien	Oregon	National
Air quality index	26	32	42
Pollution index	13,842,600	7,156,356	2,726,193

O'Brien air quality

Measurement	Total
Days measured	365
Days with good air quality	283
Days with moderate air quality	77
Days w/ poor A.Q. for sensitive groups	3
Days with unhealthy air quality	2

Air quality details

Pollutant	Total
Arsenic	0.020%
Benzene	0.210%
Carbon Tetrachloride	0.030%
Lead	0.030%
Mercury	0.020%

Average monthly O'Brien temperature with heat index

O'Brien monthly precipitation with daily maximum

O'Brien monthly snow depth with daily maximum

O'Brien monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Takilma, OR	465	26	48.0%
Cave Junction, OR	2,153	26	48.0%
Kerby, OR	282	26	48.0%
Selma, OR	913	26	48.0%
O'Brien, OR	639	26	48.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Norfolk, CT	639	37	26.0%
Swea City, IA	639	15	70.0%
Apple Canyon Lake, IL	639	29	42.0%
New Market, IN	639	42	16.0%
Sicily Island, LA	639	34	32.0%
O'Brien, OR	639	26	48.0%

Source: The O'Brien, 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.