Rockcreek CDP, Oregon

Official LSAD Designation: Rockcreek CDP • Census GEOID: 4163010 • Washington County

Climate Normals & Weather Observations

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

Reference Weather Station: PORTLAND-HILLSBORO AP, OR US (ID: USW00094261) • Located 3.6 miles from community center • Elevation: 62.2 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	47.3°	33.6°	40.4°	5.27"
February	51.0°	33.5°	42.3°	3.97"
March	55.9°	36.5°	46.2°	3.70"
April	60.9°	39.2°	50.1°	2.57"
May	68.7°	44.7°	56.7°	2.02"
June	73.5°	48.6°	61.0°	1.31"
July	82.1°	52.2°	67.2°	0.37"
August	82.4°	51.8°	67.1°	0.48"
September	76.4°	47.5°	62.0°	1.38"
October	63.7°	40.9°	52.3°	3.37"
November	52.6°	36.5°	44.6°	5.44"
December	46.2°	33.3°	39.8°	6.05"

2010–2025, completed calendar years only.

NOAA station PORTLAND-HILLSBORO AP, OR US (ID: USW00094261) • 3.6 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	42.3
2011	50.3	60.0	40.7
2012	52.0	62.2	41.8
2013	51.6	62.1	41.2
2014	53.9	64.5	43.3
2015	54.8	66.1	43.6
2016	Unavailable	Unavailable	Unavailable
2017	52.6	63.3	42.0
2018	53.5	64.8	42.3
2019	52.2	62.7	41.7
2020	53.5	64.2	42.7
2021	53.3	64.4	42.2
2022	52.7	63.7	41.6
2023	53.5	64.3	42.7
2024	53.6	64.3	42.9
2025	54.3	65.1	43.4

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