TODAY OCT20
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.5 1.9
  • 6740Sat
  • 6442Sun
  • 6341Mon
  • 5640Tue
  • 5241Wed
daynightWeather update from Easton Hill at
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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.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January23°F33°F27°F12.2"
February26°F35°F30°F7.2"
March29°F39°F33°F11.1"
April32°F46°F37°F6.3"
May39°F55°F45°F5.8"
June43°F60°F49°F4.4"
July49°F70°F57°F1.2"
August51°F70°F58°F1.5"
September46°F63°F52°F4.1"
October38°F50°F42°F9.1"
November30°F37°F33°F14.5"
December23°F31°F26°F12.2"

Did you know?

  • The highest monthly average temperature in Snoqualmie Pass for August is 58 degrees.
  • The lowest monthly average temperature in Snoqualmie Pass for December is 26 degrees.
  • The most monthly precipitation in Snoqualmie Pass occurs in November with 14.5 inches.
  • The air quality index in Snoqualmie Pass is 1% better than the national average.
  • The pollution index in Snoqualmie Pass is 249% worse than the national average.

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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.
IndexSnoqualmie PassWashingtonNational
Air quality index493650
Pollution index17,693,8008,596,9895,066,862

Snoqualmie Pass air quality information

MeasurementTotal
Days measured365
Days with good air quality195
Days with moderate air quality162
Days w/ poor A.Q. for sensitive groups8
Days with unhealthy air quality

Snoqualmie Pass air quality information

PollutantTotal
Arsenic0.010%
Benzene0.300%
Carbon Tetrachloride0.050%
Lead0.110%
Mercury0.020%

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, StatePopulationAir Quality IndexNational Avg.
Easton, WA3771864%
Snoqualmie Pass, WA204492%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Mosby, MO2045816%
Little Creek, DE2043824%
Sumatra, FL2043726%
Easton, MN2041864%
Carney, MI2044020%
Snoqualmie Pass, WA204492%
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.