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Weather extremes

How extreme does Oak Hill's weather get?

The hottest, coldest, wettest and snowiest days Oak Hill has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 50+ years of daily weather observations (1971–present), from the Washington Dulles Intl Ap station 4 km away. Updated through June 2026 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Oak Hill has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
105°F Jul 22, 2011

That is about 17°F hotter than a normal July afternoon in Oak Hill (typical high near 88°F).

The three most extreme on record

1 105°F Jul 22, 2011
2 104°F Aug 20, 1983
3 104°F Jul 16, 1988
❄️ Coldest night
-18°F Jan 22, 1984

About 43°F colder than a normal January night in Oak Hill (typical low near 25°F).

The three most extreme on record

1 -18°F Jan 22, 1984
2 -17°F Jan 28, 1987
3 -16°F Jan 21, 1984
🌧️ Most rain in one day
10.67 in Jun 21, 1972

More rain in a single day than Oak Hill usually gets in the whole month of June (typical June total about 4.3 in).

The three most extreme on record

1 10.67 in Jun 21, 1972
2 5.94 in Jun 25, 2006
3 5.11 in Sep 6, 2008
Most snow in one day
22.5 in Feb 11, 1983

Close to a whole typical February's snow in one day (Oak Hill averages about 7 in across the month).

The three most extreme on record

1 22.5 in Feb 11, 1983
2 22.1 in Jan 23, 2016
3 19.8 in Jan 7, 1996

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

-30°-10°10°30°50°70°90°110°130° all-time high 105°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Oak Hill's record heat sits well above even a hot day for the season — July's 105°F is about 17°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Oak Hill's warmest days reach the high 80s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 105°F and as low as −18°F. A single day has delivered over 11 inches of rain or close to 23 inches of snow. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Washington Dulles Intl AP (NOAA GHCN station USW00093738), about 4 km from the city centre.

How we build these numbers →