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Granite Falls city, Washington

Official LSAD Designation: Granite Falls city • Census GEOID: 5327995 • Snohomish County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Granite Falls city.

Reference Weather Station: ARLINGTON, WA US (ID: USC00450257) • Located 10.6 miles from community center • Elevation: 30.5 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 47.4° 28.6° 38.0° 5.92"
February 50.5° 28.0° 39.3° 4.42"
March 54.2° 31.5° 42.9° 5.00"
April 59.8° 35.3° 47.6° 4.34"
May 66.7° 40.9° 53.8° 3.43"
June 71.0° 45.4° 58.2° 2.66"
July 77.3° 47.9° 62.6° 1.15"
August 77.7° 47.1° 62.4° 1.34"
September 72.0° 42.2° 57.1° 2.49"
October 60.8° 36.9° 48.9° 4.94"
November 52.2° 31.2° 41.7° 7.15"
December 46.1° 27.9° 37.0° 6.15"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station ARLINGTON, WA US (ID: USC00450257) • 10.6 miles from community center .

This is the same reference station used for monthly normals.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at ARLINGTON, WA US Year is the horizontal axis. Annual mean temperature in degrees Fahrenheit is the vertical axis. Dots show recorded years; lines connect consecutive available years only. Missing years are gaps, with no interpolation. Optional dashed lines show annual mean of daily highs and lows. Exact values appear in the data table below. 33.0 41.8 50.5 59.3 68.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2011: Annual mean 49.2°F 2012: Annual mean 50.0°F 2013: Annual mean 49.9°F 2014: Annual mean 51.1°F 2015: Annual mean 51.3°F 2016: Annual mean 50.6°F 2017: Annual mean 49.0°F 2018: Annual mean 50.5°F 2019: Annual mean 50.2°F 2011: Annual mean of daily highs 59.3°F 2012: Annual mean of daily highs 60.6°F 2013: Annual mean of daily highs 61.0°F 2014: Annual mean of daily highs 62.9°F 2015: Annual mean of daily highs 64.2°F 2016: Annual mean of daily highs 62.9°F 2017: Annual mean of daily highs 61.6°F 2018: Annual mean of daily highs 62.3°F 2019: Annual mean of daily highs 61.9°F 2011: Annual mean of daily lows 39.1°F 2012: Annual mean of daily lows 39.5°F 2013: Annual mean of daily lows 38.8°F 2014: Annual mean of daily lows 39.3°F 2015: Annual mean of daily lows 38.3°F 2016: Annual mean of daily lows 38.4°F 2017: Annual mean of daily lows 36.5°F 2018: Annual mean of daily lows 38.7°F 2019: Annual mean of daily lows 38.6°F

Source: NOAA NCEI Global Summary of the Year.

Annual temperature data table (°F)
Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year Annual mean (°F) Annual mean of daily highs (°F) Annual mean of daily lows (°F)
2010 Unavailable Unavailable Unavailable
2011 49.2 59.3 39.1
2012 50.0 60.6 39.5
2013 49.9 61.0 38.8
2014 51.1 62.9 39.3
2015 51.3 64.2 38.3
2016 50.6 62.9 38.4
2017 49.0 61.6 36.5
2018 50.5 62.3 38.7
2019 50.2 61.9 38.6
2020 Unavailable Unavailable Unavailable
2021 Unavailable Unavailable Unavailable
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.