Snoqualmie Pass, WA Weather - Forecast & Monthly Averages

TEMPERATURE	31
HUMIDITY	100
PRESSURE
WIND COND.

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Weather Quick Facts

The highest monthly average temperature in Snoqualmie Pass for August is 57.9 degrees
The lowest monthly average temperature in Snoqualmie Pass for December is 26.3 degrees
The most monthly precipitation in Snoqualmie Pass occurs in November with 14.5 inches
The air quality index in Snoqualmie Pass is 7% worse than the national average
The pollution index in Snoqualmie Pass is 549% worse than the national average

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Snoqualmie Pass 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	23°F	33°F	27°F	12.2"
February	26°F	35°F	30°F	7.2"
March	29°F	39°F	33°F	11.1"
April	32°F	46°F	37°F	6.3"
May	39°F	55°F	45°F	5.8"
June	43°F	60°F	49°F	4.4"
July	49°F	70°F	57°F	1.2"
August	51°F	70°F	58°F	1.5"
September	46°F	63°F	52°F	4.1"
October	38°F	50°F	42°F	9.1"
November	30°F	37°F	33°F	14.5"
December	23°F	31°F	26°F	12.2"

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Snoqualmie Pass 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	Snoqualmie Pass	Washington	National
Air quality index	45	36	42
Pollution index	17,693,800	4,541,850	2,726,193

Snoqualmie Pass 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	0.300%
Carbon Tetrachloride	0.050%
Lead	0.110%
Mercury	0.020%

Average monthly Snoqualmie Pass temperature with heat index

Snoqualmie Pass monthly precipitation with daily maximum

Snoqualmie Pass monthly snow depth with daily maximum

Snoqualmie Pass monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Easton, WA	302	23	54.0%
Snoqualmie Pass, WA	395	45	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Lucas, KS	395	32	36.0%
Port Vincent, LA	395	45	10.0%
Golden, MO	395	18	64.0%
McCord Bend, MO	395	18	64.0%
Fromberg, MT	395	21	58.0%
Snoqualmie Pass, WA	395	45	10.0%

Source: The Snoqualmie Pass, 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.