Lake Stevens, WA Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Lake Stevens for August is 63.5 degrees
The lowest monthly average temperature in Lake Stevens for December is 39.4 degrees
The most monthly precipitation in Lake Stevens occurs in November with 5.7 inches
The air quality index in Lake Stevens is 7% worse than the national average
The pollution index in Lake Stevens is 479% worse than the national average

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Lake Stevens 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	46°F	41°F	3.8"
February	37°F	49°F	42°F	2.7"
March	39°F	52°F	45°F	4.4"
April	42°F	57°F	48°F	2.8"
May	47°F	64°F	54°F	2.2"
June	51°F	68°F	58°F	1.8"
July	55°F	74°F	63°F	0.7"
August	56°F	75°F	63°F	0.9"
September	53°F	69°F	59°F	2.0"
October	47°F	59°F	52°F	3.6"
November	40°F	51°F	45°F	5.7"
December	35°F	44°F	39°F	4.9"

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Lake Stevens 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	Lake Stevens	Washington	National
Air quality index	45	36	42
Pollution index	15,778,900	4,541,850	2,726,193

Lake Stevens 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	0.010%
Benzene	0.270%
Carbon Tetrachloride	0.040%
Lead	0.160%
Mercury	0.003%

Average monthly Lake Stevens temperature with heat index

Lake Stevens monthly precipitation with daily maximum

Lake Stevens monthly snow depth with daily maximum

Lake Stevens monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Granite Falls, WA	3,961	24	52.0%
Lochsloy, WA	2,991	24	52.0%
Warm Beach, WA	2,934	24	52.0%
Canyon Creek, WA	3,218	24	52.0%
Arlington, WA	19,947	24	52.0%
Lake Stevens, WA	33,470	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Saint-Georges, QC	33,468	n/a
Long Beach, NY	33,475	51	2.0%
Fairborn, OH	33,456	47	6.0%
Estero, FL	33,450	34	32.0%
Woodridge, IL	33,443	55	10.0%
Lake Stevens, WA	33,470	45	10.0%

Source: The Lake Stevens, 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.