TODAY APR23
TEMPERATURE60°F
HUMIDITY56%
PRESSURE30.32 inHg
WIND COND.310° 1.2 mph
  • 7042Mon
  • 7244Tue
  • 7149Wed
  • 7348Thu
  • 6646Fri
daynightWeather update from EW6774 Machias, on 22 Apr 5:04 pm PDT

Granite Falls Average Weather

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
January10°F63°F39°F1.1"
February12°F64°F40°F0.4"
March23°F72°F44°F1.9"
April27°F79°F47°F0.7"
May30°F90°F54°F0.6"
June39°F88°F58°F1.5"
July41°F93°F63°F0.3"
August43°F90°F62°F0.5"
September34°F88°F56°F0.5"
October19°F75°F50°F0.8"
November9°F63°F43°F1.5"
December12°F63°F38°F1.1"

Did you know?

  • The highest monthly average temperature in Granite Falls for July is 63 degrees.
  • The lowest monthly average temperature in Granite Falls for December is 38 degrees.
  • The most monthly precipitation in Granite Falls occurs in March with 1.9 inches.
  • The air quality index in Granite Falls is 37% better than the national average.
  • The pollution index in Granite Falls is 211% worse than the national average.

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Compare Granite Falls, WA Weather To Other Cities

Granite Falls 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.
IndexGranite FallsWashingtonNational
Air quality index313650
Pollution index15,778,9008,596,9895,066,862

Granite Falls air quality information

MeasurementTotal
Days measured365
Days with good air quality344
Days with moderate air quality21
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Granite Falls air quality information

PollutantTotal
Arsenic0.010%
Benzene0.270%
Carbon Tetrachloride0.040%
Lead0.160%
Mercury0.003%

Average monthly Granite Falls temperature with heat index

Granite Falls monthly precipitation with daily maximum

Granite Falls monthly snow depth with daily maximum

Granite Falls monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bryant, WA2,0013138%
Lake Cassidy, WA3,4703138%
Lochsloy, WA2,7893138%
Verlot, WA1633138%
Lake Goodwin, WA3,6403138%
Granite Falls, WA3,4583138%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Gramercy, LA3,4583432%
Boonsboro, MD3,4584118%
Spearman, TX3,4584020%
Stanhope, NJ3,4573922%
Panther Valley, NJ3,4573922%
Granite Falls, WA3,4583138%
Source: The Granite Falls, 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.