Slater-Marietta weather by month
What a typical year looks like in Slater-Marietta, South Carolina: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Caesars Head, 15 km from Slater-Marietta; records cover 1925–2026.
The year at a glance
- Precipitation a year
- 74.2 in1885 mm
- Snow a year
- 7 in19 cm
- Last spring freeze
- Apr 9
- First fall freeze
- Nov 2
- Heating degree days
- 4,405
- Cooling degree days
- 543
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 10°−12° (heating, 99%) and 86°30° (cooling, 1%).
Month by month
Slater-Marietta in January
Highs average 45°7° and lows 28°−2°, with 6 in153 mm of precipitation and 2.7 in6.9 cm of snow in a typical January.
- Record high
- 73°23° (1932)
- Record low
- −19°−28° (1985)
- Heating degree days
- 888
- Cooling degree days
- 0
Slater-Marietta in February
Highs average 48°9° and lows 30°−1°, with 4.8 in122 mm of precipitation and 1.6 in4.1 cm of snow in a typical February.
- Record high
- 74°23° (2025)
- Record low
- −6°−21° (1958)
- Heating degree days
- 720
- Cooling degree days
- 0
Slater-Marietta in March
Highs average 56°13° and lows 37°3°, with 5.2 in131 mm of precipitation and 0.3 in0.8 cm of snow in a typical March.
- Record high
- 85°29° (1929)
- Record low
- 1°−17° (1960)
- Heating degree days
- 582
- Cooling degree days
- 0
Slater-Marietta in April
Highs average 65°18° and lows 44°7°, with 5.9 in151 mm of precipitation in a typical April.
- Record high
- 90°32° (1930)
- Record low
- 17°−8° (2007)
- Heating degree days
- 317
- Cooling degree days
- 8
Slater-Marietta in May
Highs average 70°21° and lows 53°12°, with 6.1 in155 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 98°37° (1926)
- Record low
- 27°−3° (1932)
- Heating degree days
- 139
- Cooling degree days
- 34
Slater-Marietta in June
Highs average 75°24° and lows 60°16°, with 6.9 in176 mm of precipitation in a typical June.
- Record high
- 97°36° (1936)
- Record low
- 38°3° (1931)
- Heating degree days
- 28
- Cooling degree days
- 109
Slater-Marietta in July
Highs average 78°25° and lows 64°18°, with 7 in178 mm of precipitation in a typical July.
- Record high
- 99°37° (1952)
- Record low
- 44°7° (1932)
- Heating degree days
- 4
- Cooling degree days
- 182
Slater-Marietta in August
Highs average 76°25° and lows 63°17°, with 7 in177 mm of precipitation in a typical August.
- Record high
- 99°37° (1983)
- Record low
- 45°7° (1986)
- Heating degree days
- 10
- Cooling degree days
- 146
Slater-Marietta in September
Highs average 71°22° and lows 58°14°, with 6.6 in168 mm of precipitation in a typical September.
- Record high
- 98°37° (1925)
- Record low
- 28°−2° (1967)
- Heating degree days
- 78
- Cooling degree days
- 58
Slater-Marietta in OctoberThis month
Highs average 63°17° and lows 48°9°, with 5.6 in142 mm of precipitation in a typical October.
- Record high
- 89°32° (1954)
- Record low
- 23°−5° (1937)
- Heating degree days
- 305
- Cooling degree days
- 6
Slater-Marietta in November
Highs average 55°13° and lows 38°3°, with 5.9 in151 mm of precipitation in a typical November.
- Record high
- 79°26° (1973)
- Record low
- −1°−18° (1950)
- Heating degree days
- 554
- Cooling degree days
- 0
Slater-Marietta in December
Highs average 48°9° and lows 32°0°, with 7.1 in180 mm of precipitation and 2.6 in6.6 cm of snow in a typical December.
- Record high
- 75°24° (1931)
- Record low
- −5°−21° (1962)
- Heating degree days
- 780
- Cooling degree days
- 0