Cathlamet, WA Weather - Forecast & Monthly Averages

TEMPERATURE	46
HUMIDITY	92
PRESSURE
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Cathlamet for August is 60.9 degrees
The lowest monthly average temperature in Cathlamet for December is 42.4 degrees
The most monthly precipitation in Cathlamet occurs in November with 12.7 inches
The air quality index in Cathlamet is 57% better than the national average
The pollution index in Cathlamet is 55% worse than the national average

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Cathlamet 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	43°F	10.5"
February	37°F	53°F	44°F	6.7"
March	39°F	55°F	46°F	9.5"
April	40°F	57°F	49°F	6.0"
May	45°F	63°F	53°F	4.1"
June	50°F	66°F	57°F	2.4"
July	53°F	69°F	60°F	1.0"
August	53°F	71°F	61°F	0.8"
September	50°F	70°F	59°F	3.3"
October	45°F	63°F	53°F	7.4"
November	40°F	55°F	47°F	12.7"
December	36°F	49°F	42°F	11.3"

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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.
Index	Cathlamet	Washington	National
Air quality index	18	36	42
Pollution index	4,215,410	4,541,850	2,726,193

Cathlamet air quality

Measurement	Total
Days measured	360
Days with good air quality	338
Days with moderate air quality	22
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.005%
Benzene	0.050%
Carbon Tetrachloride	0.004%
Lead	0.030%
Mercury	0.250%

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	Population	Air Quality Index	National Avg.
Grays River, WA	309	18	64.0%
Skamokawa Valley, WA	268	18	64.0%
Clatskanie, OR	2,189	18	64.0%
Lower Elochoman, WA	475	18	64.0%
Upper Elochoman, WA	119	18	64.0%
Cathlamet, WA	605	18	64.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Collins, GA	605	39	22.0%
Portal, GA	605	47	6.0%
Keystone, IA	605	39	22.0%
Augusta, IL	605	41	18.0%
Maple Hill, KS	605	41	18.0%
Cathlamet, WA	605	18	64.0%

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.