Wilmington Island weather by month
What a typical year looks like in Wilmington Island, Georgia: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at SAVANNAH HUNTER FIELD, 15 km from Wilmington Island; records cover 1937–2026.
The year at a glance
- Precipitation a year
- 48.1 in1222 mm
- Snow a year
- Rare
- Last spring freeze
- Rare
- First fall freeze
- Rare
- Heating degree days
- 1,675
- Cooling degree days
- 2,596
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are — (heating, 99%) and — (cooling, 1%).
Month by month
Wilmington Island in January
Highs average 61°16° and lows 40°4°, with 3.3 in83 mm of precipitation in a typical January.
- Record high
- 85°29° (1937)
- Record low
- 9°−13° (1970)
- Heating degree days
- 450
- Cooling degree days
- 7
Wilmington Island in February
Highs average 65°18° and lows 43°6°, with 2.8 in71 mm of precipitation in a typical February.
- Record high
- 87°31° (2026)
- Record low
- 16°−9° (1958)
- Heating degree days
- 320
- Cooling degree days
- 12
Wilmington Island in March
Highs average 71°22° and lows 49°9°, with 3.5 in89 mm of precipitation in a typical March.
- Record high
- 91°33° (1954)
- Record low
- 22°−6° (1960)
- Heating degree days
- 196
- Cooling degree days
- 41
Wilmington Island in April
Highs average 78°26° and lows 55°13°, with 3.4 in86 mm of precipitation in a typical April.
- Record high
- 93°34° (1958)
- Record low
- 34°1° (1945)
- Heating degree days
- 63
- Cooling degree days
- 114
Wilmington Island in May
Highs average 85°29° and lows 63°17°, with 3.6 in92 mm of precipitation in a typical May.
- Record high
- 101°38° (1945)
- Record low
- 44°7° (1963)
- Heating degree days
- 7
- Cooling degree days
- 287
Wilmington Island in June
Highs average 90°32° and lows 71°22°, with 6.7 in169 mm of precipitation in a typical June.
- Record high
- 105°41° (1944)
- Record low
- 55°13° (1966)
- Heating degree days
- 0
- Cooling degree days
- 455
Wilmington Island in July
Highs average 92°34° and lows 74°23°, with 5.8 in146 mm of precipitation in a typical July.
- Record high
- 105°41° (2026)
- Record low
- 60°16° (1970)
- Heating degree days
- 0
- Cooling degree days
- 558
Wilmington Island in August
Highs average 91°33° and lows 73°23°, with 5.5 in139 mm of precipitation in a typical August.
- Record high
- 105°41° (1954)
- Record low
- 61°16° (1945)
- Heating degree days
- 0
- Cooling degree days
- 528
Wilmington Island in September
Highs average 86°30° and lows 69°21°, with 4.4 in110 mm of precipitation in a typical September.
- Record high
- 100°38° (1944)
- Record low
- 42°6° (1967)
- Heating degree days
- 1
- Cooling degree days
- 382
Wilmington Island in OctoberThis month
Highs average 79°26° and lows 59°15°, with 3.7 in94 mm of precipitation in a typical October.
- Record high
- 95°35° (1954)
- Record low
- 32°0° (1937)
- Heating degree days
- 46
- Cooling degree days
- 164
Wilmington Island in November
Highs average 70°21° and lows 48°9°, with 2.4 in61 mm of precipitation in a typical November.
- Record high
- 85°29° (1946)
- Record low
- 17°−8° (1950)
- Heating degree days
- 213
- Cooling degree days
- 36
Wilmington Island in December
Highs average 64°18° and lows 43°6°, with 3.2 in82 mm of precipitation in a typical December.
- Record high
- 82°28° (1956)
- Record low
- 11°−12° (1962)
- Heating degree days
- 379
- Cooling degree days
- 12