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Weather & Climate

Hanahan, South Carolina, United States

Overview

Climate data and monthly weather averages for Hanahan.

Key Metrics

Annual Avg
19°C
Summer Avg
27.2°C
Winter Avg
10.3°C
Record High
39°C
Record Low
-7.7°C
Annual Precipitation
1245.3 mm
Avg Humidity
78%
Summer Humidity
77%
Winter Humidity
81%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan25.6°-7.7°61.480%9238.6
Feb26.4°10.8°-6°83.780%10236
Mar29.4°14.3°-3.6°8478%14739.7
Apr34.3°18.6°1.7°81.675%18239.6
May39°23.1°8.4°92.473%20229.3
Jun38.9°26.5°15.2°140.476%19436.4
Jul38.4°27.8°17.4°146.976%19728.4
Aug38.4°27.3°16.9°170.579%17731.9
Sep36.4°24.7°11.7°118.880%14845.6
Oct35.6°20°1.5°104.878%13044.4
Nov30.1°14.4°-3.6°69.379%9933.4
Dec26.4°11.2°-7°91.582%8240.1

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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