St. Helena weather by month
What a typical year looks like in St. Helena, North Carolina: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Wilmington 7 N, 22 km from St. Helena; records cover 1949–2026.
The year at a glance
- Precipitation a year
- 63.5 in1614 mm
- Snow a year
- 0.2 in0.5 cm
- Last spring freeze
- Mar 28
- First fall freeze
- Nov 7
- Heating degree days
- 2,747
- Cooling degree days
- 1,818
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 18°−8° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
St. Helena in January
Highs average 56°13° and lows 33°1°, with 4 in101 mm of precipitation and 0.1 in0.3 cm of snow in a typical January.
- Record high
- 82°28° (2008)
- Record low
- 0°−18° (1985)
- Heating degree days
- 637
- Cooling degree days
- 1
St. Helena in February
Highs average 59°15° and lows 35°2°, with 3.7 in93 mm of precipitation in a typical February.
- Record high
- 84°29° (1977)
- Record low
- 10°−12° (1958)
- Heating degree days
- 510
- Cooling degree days
- 2
St. Helena in March
Highs average 65°18° and lows 41°5°, with 4.1 in103 mm of precipitation in a typical March.
- Record high
- 92°33° (2006)
- Record low
- 9°−13° (1980)
- Heating degree days
- 383
- Cooling degree days
- 10
St. Helena in April
Highs average 73°23° and lows 50°10°, with 3.3 in85 mm of precipitation in a typical April.
- Record high
- 95°35° (2002)
- Record low
- 26°−3° (1950)
- Heating degree days
- 156
- Cooling degree days
- 50
St. Helena in May
Highs average 80°27° and lows 59°15°, with 4.9 in125 mm of precipitation in a typical May.
- Record high
- 98°37° (2011)
- Record low
- 31°−1° (1963)
- Heating degree days
- 34
- Cooling degree days
- 168
St. Helena in June
Highs average 86°30° and lows 67°20°, with 6.2 in157 mm of precipitation in a typical June.
- Record high
- 103°39° (2008)
- Record low
- 43°6° (1966)
- Heating degree days
- 2
- Cooling degree days
- 353
St. Helena in July
Highs average 89°32° and lows 71°22°, with 7.5 in190 mm of precipitation in a typical July.
- Record high
- 106°41° (2003)
- Record low
- 47°8° (1988)
- Heating degree days
- 0
- Cooling degree days
- 468
St. Helena in August
Highs average 88°31° and lows 70°21°, with 7.8 in198 mm of precipitation in a typical August.
- Record high
- 104°40° (1999)
- Record low
- 52°11° (1979)
- Heating degree days
- 0
- Cooling degree days
- 420
St. Helena in September
Highs average 83°28° and lows 64°18°, with 9.7 in247 mm of precipitation in a typical September.
- Record high
- 100°38° (2008)
- Record low
- 39°4° (1999)
- Heating degree days
- 8
- Cooling degree days
- 262
St. Helena in OctoberThis month
Highs average 75°24° and lows 52°11°, with 4.6 in117 mm of precipitation in a typical October.
- Record high
- 96°36° (1997)
- Record low
- 22°−6° (1962)
- Heating degree days
- 120
- Cooling degree days
- 68
St. Helena in November
Highs average 66°19° and lows 42°5°, with 3.8 in97 mm of precipitation in a typical November.
- Record high
- 87°31° (1972)
- Record low
- 16°−9° (1950)
- Heating degree days
- 343
- Cooling degree days
- 12
St. Helena in December
Highs average 59°15° and lows 36°2°, with 3.9 in100 mm of precipitation and 0.1 in0.3 cm of snow in a typical December.
- Record high
- 83°28° (1971)
- Record low
- 0°−18° (1989)
- Heating degree days
- 554
- Cooling degree days
- 4