Warrenton weather by month
What a typical year looks like in Warrenton, Virginia: average highs and lows, rain and snow, and the warmest and coldest days on record. No nearby active station has official 1991–2020 normals, so these are forecast.blue’s own averages computed from daily observations at Manassas Regional Davis Field Airport, 25 km from Warrenton, over its available record (2024–2026) — not an NCEI normal; records cover 2024–2026.
The year at a glance
- Precipitation a year
- 19.2 in488 mm
- Snow a year
- Rare
- Last spring freeze
- Rare
- First fall freeze
- Rare
- Heating degree days
- —
- Cooling degree days
- —
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are — (heating, 99%) and — (cooling, 1%).
Month by month
Warrenton in January
Highs average 41°5° and lows 19°−7°, with 1.3 in33 mm of precipitation in a typical January.
- Record high
- 64°18° (2026)
- Record low
- −2°−19° (2026)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in February
Highs average 47°8° and lows 25°−4°, with 2.2 in56 mm of precipitation in a typical February.
- Record high
- 67°19° (2025)
- Record low
- 1°−17° (2026)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in March
Highs average 64°18° and lows 36°2°, with 1.6 in41 mm of precipitation in a typical March.
- Record high
- 87°31° (2026)
- Record low
- 16°−9° (2025)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in April
Highs average 73°23° and lows 47°8°, with 0.4 in10 mm of precipitation in a typical April.
- Record high
- 93°34° (2026)
- Record low
- 25°−4° (2025)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in May
Highs average 76°24° and lows 54°12°, with 3.2 in81 mm of precipitation in a typical May.
- Record high
- 96°36° (2026)
- Record low
- 34°1° (2026)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in June
Highs average 87°30° and lows 63°17°, with 1.4 in36 mm of precipitation in a typical June.
- Record high
- 99°37° (2024)
- Record low
- 42°6° (2025)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in July
Highs average 90°32° and lows 69°21°, with 2.8 in71 mm of precipitation in a typical July.
- Record high
- 100°38° (2026)
- Record low
- 54°12° (2024)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in August
Highs average 86°30° and lows 64°18°, with 2 in51 mm of precipitation in a typical August.
- Record high
- 99°37° (2024)
- Record low
- 46°8° (2025)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in September
Highs average 80°27° and lows 59°15°, with 1.8 in46 mm of precipitation in a typical September.
- Record high
- 96°36° (2026)
- Record low
- 42°6° (2024)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in OctoberThis month
Highs average 72°22° and lows 43°6°, with 0.7 in18 mm of precipitation in a typical October.
- Record high
- 88°31° (2026)
- Record low
- 28°−2° (2025)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in November
Highs average 61°16° and lows 36°2°, with 0.5 in13 mm of precipitation in a typical November.
- Record high
- 83°28° (2024)
- Record low
- 20°−7° (2025)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton in December
Highs average 46°8° and lows 25°−4°, with 1.3 in33 mm of precipitation in a typical December.
- Record high
- 68°20° (2024)
- Record low
- 12°−11° (2024)
- Heating degree days
- —
- Cooling degree days
- —
Warrenton 3 SE station, 1897–2016: records and averages
This station is no longer reporting, but its 1897–2016 record is the longest and most local history available. These are its own averages over its own period of record — not NCEI normals, and not the same station as the computed averages above.
January
Average high 42°6°, low 23°−5°, 2.9 in74 mm precipitation.
Record high 75°24° (1975); record low −11°−24° (1972).
February
Average high 45°7°, low 25°−4°, 2.6 in66 mm precipitation.
Record high 80°27° (1985); record low −9°−23° (1899).
March
Average high 54°12°, low 33°1°, 3.4 in86 mm precipitation.
Record high 90°32° (1990); record low 4°−16° (2014).
April
Average high 66°19°, low 43°6°, 3.3 in84 mm precipitation.
Record high 94°34° (1976); record low 15°−9° (1977).
May
Average high 74°23°, low 52°11°, 4 in102 mm precipitation.
Record high 95°35° (1969); record low 30°−1° (1966).
June
Average high 82°28°, low 61°16°, 3.6 in91 mm precipitation.
Record high 99°37° (1988); record low 39°4° (1972).
July
Average high 86°30°, low 65°18°, 3.8 in97 mm precipitation.
Record high 103°39° (1977); record low 48°9° (1988).
August
Average high 85°29°, low 64°18°, 3.6 in91 mm precipitation.
Record high 104°40° (1988); record low 43°6° (1993).
September
Average high 79°26°, low 57°14°, 3.6 in91 mm precipitation.
Record high 102°39° (1953); record low 27°−3° (1993).
October
Average high 68°20°, low 45°7°, 3.4 in86 mm precipitation.
Record high 94°34° (1951); record low 16°−9° (1993).
November
Average high 57°14°, low 36°2°, 3.1 in79 mm precipitation.
Record high 86°30° (1974); record low 8°−13° (1955).
December
Average high 45°7°, low 27°−3°, 3.1 in79 mm precipitation.
Record high 79°26° (1984); record low −2°−19° (1983).