Tri-City, OR Weather - Forecast & Monthly Averages

TEMPERATURE	52
HUMIDITY	86
PRESSURE	101460
WIND COND.	170 5.4

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Weather Quick Facts

The highest monthly average temperature in Tri-City for July is 71.2 degrees
The lowest monthly average temperature in Tri-City for December is 41.2 degrees
The most monthly precipitation in Tri-City occurs in December with 6.3 inches
The air quality index in Tri-City is 43% better than the national average
The pollution index in Tri-City is 408% worse than the national average

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Tri-City 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	51°F	42°F	4.6"
February	38°F	56°F	45°F	3.7"
March	40°F	60°F	48°F	4.4"
April	42°F	65°F	52°F	2.5"
May	48°F	74°F	59°F	2.0"
June	53°F	79°F	64°F	1.0"
July	57°F	88°F	71°F	0.3"
August	57°F	89°F	71°F	0.2"
September	52°F	83°F	65°F	0.9"
October	46°F	69°F	55°F	2.8"
November	41°F	56°F	47°F	5.0"
December	36°F	49°F	41°F	6.3"

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Tri-City 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	Tri-City	Oregon	National
Air quality index	24	32	42
Pollution index	13,842,600	7,156,356	2,726,193

Tri-City air quality

Measurement	Total
Days measured	347
Days with good air quality	288
Days with moderate air quality	59
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

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

Average monthly Tri-City temperature with heat index

Tri-City monthly precipitation with daily maximum

Tri-City monthly snow depth with daily maximum

Tri-City monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Riddle, OR	1,159	24	52.0%
Myrtle Creek, OR	3,447	24	52.0%
Dillard, OR	525	24	52.0%
Winston, OR	5,444	24	52.0%
Green, OR	8,149	24	52.0%
Tri-City, OR	4,449	24	52.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Millsboro, DE	4,448	36	28.0%
Saukville, WI	4,448	44	12.0%
Sullivan, IL	4,450	44	12.0%
Florence, MS	4,446	44	12.0%
Montoursville, PA	4,452	35	30.0%
Tri-City, OR	4,449	24	52.0%

Source: The Tri-City, 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.