Petersburg weather by month
What a typical year looks like in Petersburg, West Virginia: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Petersburg, 1 km from Petersburg; records cover 1994–2026.
The year at a glance
- Precipitation a year
- 40.3 in1024 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 28
- First fall freeze
- Oct 18
- Heating degree days
- 4,796
- Cooling degree days
- 1,060
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 5°−15° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Petersburg in January
Highs average 44°7° and lows 23°−5°, with 2.6 in65 mm of precipitation in a typical January.
- Record high
- 75°24° (2017)
- Record low
- −10°−23° (2025)
- Heating degree days
- 969
- Cooling degree days
- 0
Petersburg in February
Highs average 47°8° and lows 25°−4°, with 2.6 in66 mm of precipitation in a typical February.
- Record high
- 78°26° (2017)
- Record low
- −11°−24° (1996)
- Heating degree days
- 805
- Cooling degree days
- 0
Petersburg in March
Highs average 56°13° and lows 31°0°, with 3.5 in89 mm of precipitation in a typical March.
- Record high
- 90°32° (2026)
- Record low
- −5°−21° (2015)
- Heating degree days
- 669
- Cooling degree days
- 2
Petersburg in April
Highs average 68°20° and lows 40°5°, with 3.5 in88 mm of precipitation in a typical April.
- Record high
- 103°39° (2009)
- Record low
- 19°−7° (1997)
- Heating degree days
- 348
- Cooling degree days
- 16
Petersburg in May
Highs average 76°24° and lows 50°10°, with 4.5 in114 mm of precipitation in a typical May.
- Record high
- 98°37° (2009)
- Record low
- 28°−2° (1996)
- Heating degree days
- 145
- Cooling degree days
- 75
Petersburg in June
Highs average 84°29° and lows 59°15°, with 4.2 in105 mm of precipitation in a typical June.
- Record high
- 100°38° (2012)
- Record low
- 38°3° (2025)
- Heating degree days
- 21
- Cooling degree days
- 216
Petersburg in July
Highs average 89°31° and lows 63°17°, with 4.5 in114 mm of precipitation in a typical July.
- Record high
- 104°40° (2011)
- Record low
- 46°8° (1996)
- Heating degree days
- 1
- Cooling degree days
- 334
Petersburg in August
Highs average 86°30° and lows 62°16°, with 3.6 in92 mm of precipitation in a typical August.
- Record high
- 100°38° (1999)
- Record low
- 42°6° (2025)
- Heating degree days
- 3
- Cooling degree days
- 279
Petersburg in September
Highs average 81°27° and lows 54°12°, with 3.3 in85 mm of precipitation in a typical September.
- Record high
- 101°38° (2015)
- Record low
- 33°1° (2020)
- Heating degree days
- 55
- Cooling degree days
- 124
Petersburg in OctoberThis month
Highs average 69°20° and lows 42°6°, with 2.7 in69 mm of precipitation in a typical October.
- Record high
- 89°32° (2007)
- Record low
- 18°−8° (1997)
- Heating degree days
- 310
- Cooling degree days
- 13
Petersburg in November
Highs average 57°14° and lows 33°1°, with 2.5 in62 mm of precipitation in a typical November.
- Record high
- 90°32° (2015)
- Record low
- 9°−13° (2023)
- Heating degree days
- 607
- Cooling degree days
- 1
Petersburg in December
Highs average 47°9° and lows 27°−3°, with 2.9 in74 mm of precipitation in a typical December.
- Record high
- 80°27° (2001)
- Record low
- −3°−19° (2002)
- Heating degree days
- 863
- Cooling degree days
- 0