Aiken receives its highest rainfall in Aug, while humidity peaks during winter months.
🌧️ Wettest:Aug — 124 mm☀️ Driest:Nov — 76 mm
💧 Humidity peaks at 81% in Feb · annual avg 74%
🌍 Climate Summary
Avg Annual Temp:63.5°F
Avg Annual Rainfall:1172 mm
Avg Humidity:74%
Data Period:1981 – 2025
Aiken Climate Overview
Aiken has a warm temperate climate with warm summers and cold winters.
Temperatures peak in Jul and drop to their lowest in Jan,
while rainfall is highest during summer months.
Humidity remains moderate throughout the year, especially during winter months, creating cold and damp conditions.
📈 Yearly Trends
The warmest year in Aiken's recorded history was 2011
(avg: 66°F),
while the coldest year was 1992
(avg: 60.6°F),
based on annual average temperatures.
📊 Key Climate Trends
🌡️ Aiken's temperature has remained relatively stable over the past decade
📈 Minimum temperatures show a slight warming trend in recent years
🌧️ Rainfall varies year-to-year without a clear long-term trend
🌡️ Annual Temperature Trend
View Range:
Average annual high/low · Last 10 years · °F
Aiken's temperatures has remained relatively stable over the past decade.
The highest recorded temperature reached
109.5°F in Jun 2012,
while the lowest dropped to
5.9°F in Jan 1985.
🌧️ Annual Precipitation
View Range:
Total annual precipitation · Last 10 years · mm/year
Annual rainfall in Aiken shows noticeable variation. Rainfall varies year-to-year without a clear long-term trend.
Based on 45 years of data (1981–2025), Jul is typically the hottest month in Aiken, South Carolina, with average high temperatures around 100.4°F.
What is the coldest month in Aiken?▼
Jan is the coldest month in Aiken, with average low temperatures around 19.6°F.
What is the rainiest month in Aiken?▼
Aug receives the most rainfall with approximately 124 mm, while Nov is the driest with 76 mm.
What was the highest temperature ever recorded in Aiken?▼
The highest recorded temperature was 109.5°F in Jun 2012. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Aiken?▼
The lowest recorded temperature was 5.9°F in Jan 1985.
How many years of data does this page cover?▼
This page covers 45 years of climate data from 1981 to 2025. As new data is added to the database the page automatically reflects the updated coverage.
How much sunlight does Aiken get?▼
Aiken receives the most sunlight in Jun with an average solar radiation of 6.32 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in South Carolina.
Where does this weather data come from?▼
All climate data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite and model data. It provides monthly averages for temperature, precipitation, humidity, wind speed, and solar radiation.
📚 Data Source
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.