St. Simons CDP, Georgia

Official LSAD Designation: St. Simons CDP • Census GEOID: 1368040 • Glynn County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for St. Simons CDP.

Reference Weather Station: BRUNSWICK MALCOLM MCKINNON AP, GA US (ID: USW00013878) • Located 2.0 miles from community center • Elevation: 4.9 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	61.8°	44.1°	53.0°	3.15"
February	64.8°	47.3°	56.1°	2.78"
March	70.4°	52.9°	61.7°	3.27"
April	76.3°	59.7°	68.0°	2.82"
May	83.3°	68.0°	75.6°	2.29"
June	88.2°	73.7°	81.0°	5.76"
July	91.0°	76.1°	83.6°	4.19"
August	89.6°	75.9°	82.8°	5.79"
September	85.8°	72.5°	79.1°	6.00"
October	79.0°	63.6°	71.3°	4.70"
November	70.7°	53.3°	62.0°	1.91"
December	64.3°	47.2°	55.7°	2.75"

2010–2025, completed calendar years only.

NOAA station BRUNSWICK MALCOLM MCKINNON AP, GA US (ID: USW00013878) • 2.0 miles from community center .

This is the same reference station used for monthly normals.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

Annual temperature data table (°F)

Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year	Annual mean (°F)	Annual mean of daily highs (°F)	Annual mean of daily lows (°F)
2010	67.1	75.3	58.9
2011	69.8	78.2	61.5
2012	70.0	77.7	62.3
2013	68.5	75.9	61.1
2014	67.4	75.5	59.2
2015	69.5	76.8	62.2
2016	69.8	77.7	61.8
2017	70.8	78.5	63.2
2018	70.1	77.7	62.4
2019	71.3	79.0	63.7
2020	70.8	78.4	63.2
2021	69.7	77.5	61.9
2022	70.3	78.3	62.3
2023	72.3	80.3	64.3
2024	Unavailable	Unavailable	Unavailable
2025	69.9	77.4	62.4

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.