Ilwaco, WA Weather - Forecast & Monthly Averages

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TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.

Weather Quick Facts

The highest monthly average temperature in Ilwaco for August is 60.9 degrees
The lowest monthly average temperature in Ilwaco for December is 42.4 degrees
The most monthly precipitation in Ilwaco occurs in November with 12.7 inches
The air quality index in Ilwaco is 52% better than the national average
The pollution index in Ilwaco is 5% worse than the national average

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

Ilwaco 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 Ilwaco temperature with heat index

Ilwaco monthly precipitation with daily maximum

Ilwaco monthly snow depth with daily maximum

Ilwaco monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Warrenton, OR	5,832	18	64.0%
Chinook, WA	173	18	64.0%
Astoria, OR	10,196	18	64.0%
Jeffers Gardens, OR	319	18	64.0%
Ocean Park, WA	2,038	20	60.0%
Ilwaco, WA	1,470	20	60.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Summerdale, AL	1,470	37	26.0%
North Granby, CT	1,470	40	20.0%
South Coventry, CT	1,470	33	34.0%
Quincy, MI	1,470	38	24.0%
Lake Luzerne, NY	1,470	37	26.0%
Ilwaco, WA	1,470	20	60.0%

Source: The Ilwaco, 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.