Santee weather by month
What a typical year looks like in Santee, South Carolina: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Holly Hill 1 SW, 20 km from Santee; records cover 2009–2026.
The year at a glance
- Precipitation a year
- 50.4 in1281 mm
- Snow a year
- Rare
- Last spring freeze
- Mar 9
- First fall freeze
- Nov 20
- Heating degree days
- 2,408
- Cooling degree days
- 2,019
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 20°−7° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Santee in January
Highs average 58°15° and lows 35°1°, with 3.8 in97 mm of precipitation in a typical January.
- Record high
- 81°27° (2016)
- Record low
- 10°−12° (2018)
- Heating degree days
- 580
- Cooling degree days
- 4
Santee in February
Highs average 62°16° and lows 36°2°, with 3.6 in91 mm of precipitation in a typical February.
- Record high
- 85°29° (2022)
- Record low
- 18°−8° (2012)
- Heating degree days
- 452
- Cooling degree days
- 3
Santee in March
Highs average 69°20° and lows 42°6°, with 3.7 in93 mm of precipitation in a typical March.
- Record high
- 89°32° (2026)
- Record low
- 22°−6° (2017)
- Heating degree days
- 311
- Cooling degree days
- 14
Santee in April
Highs average 76°25° and lows 50°10°, with 3.3 in83 mm of precipitation in a typical April.
- Record high
- 90°32° (2010)
- Record low
- 31°−1° (2014)
- Heating degree days
- 112
- Cooling degree days
- 57
Santee in May
Highs average 83°28° and lows 59°15°, with 3.6 in91 mm of precipitation in a typical May.
- Record high
- 101°38° (2019)
- Record low
- 40°4° (2018)
- Heating degree days
- 21
- Cooling degree days
- 208
Santee in June
Highs average 88°31° and lows 67°20°, with 5.5 in140 mm of precipitation in a typical June.
- Record high
- 102°39° (2011)
- Record low
- 50°10° (2024)
- Heating degree days
- 0
- Cooling degree days
- 387
Santee in July
Highs average 91°33° and lows 70°21°, with 5.7 in146 mm of precipitation in a typical July.
- Record high
- 102°39° (2011)
- Record low
- 54°12° (2014)
- Heating degree days
- 0
- Cooling degree days
- 486
Santee in August
Highs average 90°32° and lows 70°21°, with 6 in153 mm of precipitation in a typical August.
- Record high
- 100°38° (2011)
- Record low
- 60°16° (2011)
- Heating degree days
- 0
- Cooling degree days
- 463
Santee in September
Highs average 85°29° and lows 65°18°, with 5.1 in129 mm of precipitation in a typical September.
- Record high
- 96°36° (2019)
- Record low
- 48°9° (2009)
- Heating degree days
- 4
- Cooling degree days
- 295
Santee in OctoberThis month
Highs average 77°25° and lows 53°12°, with 3.7 in94 mm of precipitation in a typical October.
- Record high
- 98°37° (2019)
- Record low
- 32°0° (2011)
- Heating degree days
- 91
- Cooling degree days
- 86
Santee in November
Highs average 67°20° and lows 42°5°, with 2.9 in73 mm of precipitation in a typical November.
- Record high
- 85°29° (2009)
- Record low
- 19°−7° (2014)
- Heating degree days
- 327
- Cooling degree days
- 12
Santee in December
Highs average 60°16° and lows 37°3°, with 3.6 in90 mm of precipitation in a typical December.
- Record high
- 81°27° (2011)
- Record low
- 13°−11° (2022)
- Heating degree days
- 510
- Cooling degree days
- 4