Rock Hill receives its highest rainfall in Aug, while humidity peaks during winter months.
🌧️ Wettest:Aug — 113 mm☀️ Driest:Oct — 83 mm
💧 Humidity peaks at 81% in Jan · annual avg 75%
🌍 Climate Summary
Avg Annual Temp:60.4°F
Avg Annual Rainfall:1162 mm
Avg Humidity:75%
Data Period:1981 – 2025
Rock Hill Climate Overview
Rock Hill 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 Rock Hill's recorded history was 2012
(avg: 62.6°F),
while the coldest year was 1996
(avg: 57.2°F),
based on annual average temperatures.
📊 Key Climate Trends
🌡️ Rock Hill's temperature has remained relatively stable over the past decade
📈 Minimum temperatures show a slight warming trend in recent years
🌧️ Rainfall has decreased in recent years compared to earlier periods
🌡️ Annual Temperature Trend
View Range:
Average annual high/low · Last 10 years · °F
Rock Hill's temperatures has remained relatively stable over the past decade.
The highest recorded temperature reached
107.7°F in Aug 2007,
while the lowest dropped to
-7.7°F in Feb 1996.
🌧️ Annual Precipitation
View Range:
Total annual precipitation · Last 10 years · mm/year
Annual rainfall in Rock Hill shows noticeable variation. Rainfall has decreased in recent years compared to earlier periods.
Based on 45 years of data (1981–2025), Jul is typically the hottest month in Rock Hill, South Carolina, with average high temperatures around 99.7°F.
What is the coldest month in Rock Hill?▼
Jan is the coldest month in Rock Hill, with average low temperatures around 15.6°F.
What is the rainiest month in Rock Hill?▼
Aug receives the most rainfall with approximately 113 mm, while Oct is the driest with 83 mm.
What was the highest temperature ever recorded in Rock Hill?▼
The highest recorded temperature was 107.7°F in Aug 2007. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in Rock Hill?▼
The lowest recorded temperature was -7.7°F in Feb 1996.
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 Rock Hill get?▼
Rock Hill receives the most sunlight in Jun with an average solar radiation of 6.30 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.