TODAY AUG16
TEMPERATURE69
HUMIDITY46
PRESSURE
WIND COND.180 2.9
  • 6854Fri
  • 7253Sat
  • 7355Sun
  • 7956Mon
  • 8156Tue
daynightWeather update from Bradley Wayside (US 30 MP 74.9) at

Cathlamet Average Weather

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°F43°F10.5"
February37°F53°F44°F6.7"
March39°F55°F46°F9.5"
April40°F57°F49°F6.0"
May45°F63°F53°F4.1"
June50°F66°F57°F2.4"
July53°F69°F60°F1.0"
August53°F71°F61°F0.8"
September50°F70°F59°F3.3"
October45°F63°F53°F7.4"
November40°F55°F47°F12.7"
December36°F49°F42°F11.3"

Did you know?

  • The highest monthly average temperature in Cathlamet for August is 61 degrees.
  • The lowest monthly average temperature in Cathlamet for December is 42 degrees.
  • The most monthly precipitation in Cathlamet occurs in November with 12.7 inches.
  • The air quality index in Cathlamet is 55% better than the national average.
  • The pollution index in Cathlamet is 16% better than the national average.

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Compare Cathlamet, WA Weather To Other Cities

Cathlamet 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.
IndexCathlametWashingtonNational
Air quality index223650
Pollution index4,215,4108,596,9895,066,862

Cathlamet air quality information

MeasurementTotal
Days measured365
Days with good air quality317
Days with moderate air quality48
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Cathlamet air quality information

PollutantTotal
Arsenic0.005%
Benzene0.050%
Carbon Tetrachloride0.004%
Lead0.030%
Mercury0.250%

Average monthly Cathlamet temperature with heat index

Cathlamet monthly precipitation with daily maximum

Cathlamet monthly snow depth with daily maximum

Cathlamet monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
East Cathlamet, WA5892256%
Rosburg, WA3452256%
Clatskanie, OR2,0762256%
Grays River, WA5102256%
Skamokawa Valley, WA2652256%
Cathlamet, WA6532256%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Monroe, OR6531766%
McAdenville, NC6534216%
Guy, AR653476%
Malverne Park Oaks, NY653536%
Cass Lake, MN6532942%
Cathlamet, WA6532256%
Source: The Cathlamet, WA 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.