One Loudoun CDP, Virginia

Official LSAD Designation: One Loudoun CDP • Census GEOID: 5159364 • Loudoun County

Climate Normals & Weather Observations

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

Reference Weather Station: WFO STERLING, VA US (ID: USC00448084) • Located 5.4 miles from community center • Elevation: 87.8 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	41.9°	24.9°	33.4°	3.12"
February	45.3°	26.1°	35.7°	2.63"
March	53.8°	33.1°	43.4°	3.79"
April	66.0°	43.0°	54.5°	3.45"
May	74.3°	53.3°	63.8°	4.92"
June	82.7°	62.5°	72.6°	4.61"
July	87.2°	67.3°	77.2°	4.06"
August	85.9°	65.5°	75.7°	3.65"
September	79.2°	57.9°	68.5°	4.13"
October	67.7°	45.4°	56.6°	4.04"
November	56.0°	35.2°	45.6°	3.21"
December	46.1°	28.6°	37.4°	3.48"

2010–2025, completed calendar years only.

NOAA station WFO STERLING, VA US (ID: USC00448084) • 5.4 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	Unavailable	Unavailable	Unavailable
2011	55.9	66.4	45.5
2012	56.6	67.7	45.4
2013	54.1	64.4	43.8
2014	52.9	63.6	42.2
2015	Unavailable	65.4	Unavailable
2016	56.3	67.1	45.5
2017	56.4	66.8	46.0
2018	55.5	64.9	46.2
2019	57.0	67.1	46.9
2020	57.1	67.0	47.2
2021	56.9	67.1	46.8
2022	55.9	66.3	45.4
2023	57.8	68.3	47.3
2024	Unavailable	68.4	Unavailable
2025	Unavailable	66.4	Unavailable

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