Shoreline, WA Weather - Forecast & Monthly Averages

TEMPERATURE	44
HUMIDITY	85
PRESSURE	100760
WIND COND.	241

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Weather Quick Facts

The highest monthly average temperature in Shoreline for July is 62.9 degrees
The lowest monthly average temperature in Shoreline for December is 39.5 degrees
The most monthly precipitation in Shoreline occurs in December with 8.6 inches
The air quality index in Shoreline is 7% worse than the national average
The pollution index in Shoreline is 1491% worse than the national average

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Shoreline 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	35°F	45°F	40°F	2.5"
February	36°F	50°F	42°F	2.8"
March	41°F	55°F	47°F	3.5"
April	43°F	58°F	49°F	3.5"
May	48°F	65°F	55°F	3.0"
June	51°F	66°F	57°F	2.2"
July	55°F	74°F	63°F	2.0"
August	55°F	74°F	62°F	1.7"
September	50°F	66°F	57°F	2.8"
October	46°F	59°F	51°F	3.4"
November	38°F	48°F	43°F	4.8"
December	35°F	45°F	39°F	8.6"

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Shoreline 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	Shoreline	Washington	National
Air quality index	45	36	42
Pollution index	43,367,400	4,541,850	2,726,193

Shoreline air quality

Measurement	Total
Days measured	365
Days with good air quality	236
Days with moderate air quality	127
Days w/ poor A.Q. for sensitive groups	2
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.020%
Benzene	0.790%
Carbon Tetrachloride	0.120%
Lead	0.210%
Mercury	0.180%

Average monthly Shoreline temperature with heat index

Shoreline monthly precipitation with daily maximum

Shoreline monthly snow depth with daily maximum

Shoreline monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Keyport, WA	339	18	64.0%
Enetai, WA	1,993	18	64.0%
Manchester, WA	6,050	18	64.0%
Navy Yard City, WA	2,973	18	64.0%
Lofall, WA	2,119	18	64.0%
Shoreline, WA	56,835	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Welland, ON	56,929	n/a
Caldwell, ID	56,734	36	28.0%
Saint-Hyacinthe, QC	56,946	n/a
Palm Beach Gardens, FL	56,979	36	28.0%
Arcadia, CA	57,053	72	44.0%
Shoreline, WA	56,835	45	10.0%

Source: The Shoreline, 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.