TODAY JAN29
TEMPERATURE46
HUMIDITY86
PRESSURE30.3
WIND COND.
  • 5447Wed70%90%
  • 5949Thu40%40%
  • 6546Fri
  • 6337Sat
  • 4633Sun
daynightWeather update from Roseburg, Roseburg Regional Airport at
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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.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January36°F51°F42°F4.6"
February38°F56°F45°F3.7"
March40°F60°F48°F4.4"
April42°F65°F52°F2.5"
May48°F74°F59°F2.0"
June53°F79°F64°F1.0"
July57°F88°F71°F0.3"
August57°F89°F71°F0.2"
September52°F83°F65°F0.9"
October46°F69°F55°F2.8"
November41°F56°F47°F5.0"
December36°F49°F41°F6.3"

Did you know?

  • The highest monthly average temperature in Tri-City for July is 71 degrees.
  • The lowest monthly average temperature in Tri-City for December is 41 degrees.
  • The most monthly precipitation in Tri-City occurs in December with 6.3 inches.
  • The air quality index in Tri-City is 40% better than the national average.
  • The pollution index in Tri-City is 173% worse than the national average.

Compare Tri-City, OR Weather To Other Cities

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.
IndexTri-CityOregonNational
Air quality index303250
Pollution index13,842,6005,374,5275,066,862

Tri-City air quality information

MeasurementTotal
Days measured365
Days with good air quality302
Days with moderate air quality63
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Tri-City air quality information

PollutantTotal
Arsenic0.020%
Benzene0.210%
Carbon Tetrachloride0.030%
Lead0.030%
Mercury0.020%

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, StatePopulationAir Quality IndexNational Avg.
Green, OR7,6163040%
Winston, OR5,3643040%
Canyonville, OR2,2013040%
Lookingglass, OR9093040%
Days Creek, OR2383040%
Tri-City, OR3,8653040%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Bystrom, CA3,8655510%
Madill, OK3,8644314%
Nichols Hills, OK3,864476%
Alvarado, TX3,8633334%
Bosque Farms, NM3,863512%
Tri-City, OR3,8653040%
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.
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