Sunnyslope CDP, Washington

Official LSAD Designation: Sunnyslope CDP • Census GEOID: 5368785 • Chelan County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Sunnyslope CDP.

Reference Weather Station: WENATCHEE, WA US (ID: USC00459074) • Located 5.6 miles from community center • Elevation: 190.8 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	35.8°	25.6°	30.7°	1.32"
February	43.9°	27.6°	35.7°	0.92"
March	54.3°	33.4°	43.8°	0.73"
April	63.9°	40.4°	52.2°	0.58"
May	73.2°	49.3°	61.2°	0.75"
June	79.6°	55.8°	67.7°	0.60"
July	89.0°	62.1°	75.5°	0.22"
August	88.2°	61.1°	74.6°	0.18"
September	78.8°	52.3°	65.6°	0.24"
October	63.3°	41.3°	52.3°	0.72"
November	46.6°	32.3°	39.4°	1.15"
December	36.2°	26.4°	31.3°	1.59"

2010–2025, completed calendar years only.

NOAA station WENATCHEE, WA US (ID: USC00459074) • 5.6 miles from community center .

This is the same reference station used for monthly normals.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

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	52.1	61.8	42.5
2011	50.7	60.9	40.5
2012	52.6	62.9	42.4
2013	53.1	63.1	43.0
2014	53.8	63.8	43.8
2015	55.2	65.5	44.9
2016	53.7	63.6	43.8
2017	51.3	61.0	41.5
2018	Unavailable	Unavailable	Unavailable
2019	51.0	60.6	41.4
2020	53.4	64.0	42.9
2021	54.0	64.6	43.4
2022	Unavailable	Unavailable	Unavailable
2023	53.9	64.0	43.8
2024	54.2	65.0	43.4
2025	Unavailable	Unavailable	Unavailable

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.