South Royalton weather by month
What a typical year looks like in South Royalton, Vermont: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Woodstock, 20 km from South Royalton; records cover 1892–2026.
The year at a glance
- Precipitation a year
- 42.5 in1078 mm
- Snow a year
- Rare
- Last spring freeze
- May 13
- First fall freeze
- Oct 7
- Heating degree days
- 7,704
- Cooling degree days
- 411
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −14°−26° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
South Royalton in January
Highs average 30°−1° and lows 7°−14°, with 2.9 in72 mm of precipitation in a typical January.
- Record high
- 67°19° (1950)
- Record low
- −38°−39° (1904)
- Heating degree days
- 1444
- Cooling degree days
- 0
South Royalton in February
Highs average 33°0° and lows 9°−13°, with 2.7 in67 mm of precipitation in a typical February.
- Record high
- 66°19° (2017)
- Record low
- −43°−42° (1943)
- Heating degree days
- 1242
- Cooling degree days
- 0
South Royalton in March
Highs average 41°5° and lows 19°−7°, with 3.2 in81 mm of precipitation in a typical March.
- Record high
- 83°28° (2012)
- Record low
- −27°−33° (1950)
- Heating degree days
- 1090
- Cooling degree days
- 0
South Royalton in April
Highs average 55°13° and lows 31°0°, with 3.5 in89 mm of precipitation in a typical April.
- Record high
- 93°34° (1941)
- Record low
- 2°−17° (1911)
- Heating degree days
- 656
- Cooling degree days
- 2
South Royalton in May
Highs average 68°20° and lows 43°6°, with 3.6 in92 mm of precipitation in a typical May.
- Record high
- 95°35° (1911)
- Record low
- 17°−8° (1900)
- Heating degree days
- 313
- Cooling degree days
- 15
South Royalton in June
Highs average 77°25° and lows 53°11°, with 4.1 in104 mm of precipitation in a typical June.
- Record high
- 99°37° (1893)
- Record low
- 29°−2° (1912)
- Heating degree days
- 86
- Cooling degree days
- 79
South Royalton in July
Highs average 82°28° and lows 57°14°, with 3.9 in100 mm of precipitation in a typical July.
- Record high
- 104°40° (1916)
- Record low
- 35°2° (1936)
- Heating degree days
- 17
- Cooling degree days
- 156
South Royalton in August
Highs average 80°27° and lows 55°13°, with 3.7 in93 mm of precipitation in a typical August.
- Record high
- 100°38° (1916)
- Record low
- 29°−2° (1910)
- Heating degree days
- 35
- Cooling degree days
- 120
South Royalton in September
Highs average 73°23° and lows 47°8°, with 3.6 in91 mm of precipitation in a typical September.
- Record high
- 96°36° (2002)
- Record low
- 19°−7° (1963)
- Heating degree days
- 183
- Cooling degree days
- 38
South Royalton in OctoberThis month
Highs average 59°15° and lows 36°2°, with 4.6 in116 mm of precipitation in a typical October.
- Record high
- 88°31° (1930)
- Record low
- 9°−13° (1972)
- Heating degree days
- 548
- Cooling degree days
- 1
South Royalton in November
Highs average 46°8° and lows 26°−3°, with 3.6 in91 mm of precipitation in a typical November.
- Record high
- 80°27° (2024)
- Record low
- −16°−27° (1938)
- Heating degree days
- 862
- Cooling degree days
- 0
South Royalton in December
Highs average 35°2° and lows 16°−9°, with 3.2 in81 mm of precipitation in a typical December.
- Record high
- 71°22° (1998)
- Record low
- −38°−39° (1933)
- Heating degree days
- 1228
- Cooling degree days
- 0