Copalis Beach, WA Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Copalis Beach for August is 60.5 degrees
The lowest monthly average temperature in Copalis Beach for December is 41.5 degrees
The most monthly precipitation in Copalis Beach occurs in November with 12.6 inches
The air quality index in Copalis Beach is 52% better than the national average
The pollution index in Copalis Beach is 5% worse than the national average

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Copalis Beach 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	37°F	49°F	42°F	10.5"
February	38°F	51°F	44°F	6.3"
March	40°F	53°F	46°F	9.8"
April	42°F	57°F	49°F	5.4"
May	47°F	62°F	53°F	3.4"
June	51°F	65°F	57°F	1.8"
July	53°F	69°F	60°F	0.9"
August	54°F	70°F	60°F	1.0"
September	51°F	69°F	59°F	2.7"
October	46°F	61°F	53°F	7.6"
November	41°F	53°F	46°F	12.6"
December	36°F	47°F	41°F	10.1"

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Copalis Beach 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	Copalis Beach	Washington	National
Air quality index	20	36	42
Pollution index	2,873,390	4,541,850	2,726,193

Copalis Beach air quality

Measurement	Total
Days measured	352
Days with good air quality	348
Days with moderate air quality	4
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.050%
Carbon Tetrachloride	0.010%
Lead	0.010%
Mercury	0.010%

Average monthly Copalis Beach temperature with heat index

Copalis Beach monthly precipitation with daily maximum

Copalis Beach monthly snow depth with daily maximum

Copalis Beach monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Humptulips, WA	227	20	60.0%
Oyehut, WA	0	20	60.0%
Taholah, WA	657	20	60.0%
Hoquiam, WA	8,570	20	60.0%
Moclips, WA	49	20	60.0%
Copalis Beach, WA	515	20	60.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
La Paz Valley, AZ	515	13	74.0%
Craigmont, ID	515	29	42.0%
New Boston, IL	515	32	36.0%
Fancy Farm, KY	515	44	12.0%
McCoole, MD	515	36	28.0%
Copalis Beach, WA	515	20	60.0%

Source: The Copalis Beach, 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.