Climate Comfort Score
82/100
Excellent
2026 data Public-data reference. official source
30-year climate normals from 2 weather stations (1991-2020).
Aiken, South Carolina has an average annual temperature of 64°F and a climate comfort score of 82/100 (Excellent). Annual precipitation totals 50.8", including 0.7" of snow. Based on NOAA 30-year normals (1991–2020).
Avg Temperature
64°F (18°C)
Avg High
75°F
Avg Low
53°F
Annual Precip
50.8"
Annual Snow
0.7"
Comfort Score
82/100
Excellent
Avg Annual Temperature
64°F
30-year mean (NOAA NCEI)
Annual Precipitation
50.8"
Plus 0.7" of snow
Comfort score vs national 100-point ceiling (Aiken) 82.0%
National median (≈55)
PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Aiken area.
Warming context for Aiken
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Aiken captures average conditions across the spread shown — the most recent decade is warmer than the 30-year mean.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 56°F (13°C) | 35°F (1°C) | 45°F (7°C) | 4.6" | 0.7" | 13.9 | 0.0 |
| February | 60°F (16°C) | 38°F (3°C) | 49°F (9°C) | 4.2" | 0.0" | 9.9 | 0.0 |
| March | 68°F (20°C) | 44°F (6°C) | 56°F (13°C) | 4.7" | 0.0" | 5.1 | 0.0 |
| April | 76°F (25°C) | 52°F (11°C) | 64°F (18°C) | 3.1" | 0.0" | 1.0 | 1.5 |
| May | 84°F (29°C) | 61°F (16°C) | 72°F (22°C) | 3.5" | 0.0" | 0.0 | 9.7 |
| June | 89°F (32°C) | 69°F (21°C) | 79°F (26°C) | 5.4" | 0.0" | 0.0 | 18.4 |
| July | 93°F (34°C) | 72°F (22°C) | 82°F (28°C) | 5.6" | 0.0" | 0.0 | 25.7 |
| August | 90°F (32°C) | 71°F (21°C) | 81°F (27°C) | 5.0" | 0.0" | 0.0 | 20.4 |
| September | 85°F (30°C) | 65°F (18°C) | 75°F (24°C) | 4.1" | 0.0" | 0.0 | 9.7 |
| October | 77°F (25°C) | 53°F (11°C) | 65°F (18°C) | 2.9" | 0.0" | 1.1 | 0.7 |
| November | 67°F (19°C) | 41°F (5°C) | 54°F (12°C) | 3.4" | 0.0" | 6.3 | 0.0 |
| December | 59°F (15°C) | 36°F (2°C) | 47°F (8°C) | 4.3" | 0.0" | 13.4 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 4.6"
Snow: 0.7"
9.6 days with precipitation
February 4.2"
8.2 days with precipitation
March 4.7"
8.2 days with precipitation
April 3.1"
6.9 days with precipitation
May 3.5"
7.2 days with precipitation
June 5.4"
10.6 days with precipitation
July 5.6"
10.6 days with precipitation
August 5.0"
11.1 days with precipitation
September 4.1"
8.2 days with precipitation
October 2.9"
6.2 days with precipitation
November 3.4"
7.0 days with precipitation
December 4.3"
9.1 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 7
50% probability date
Last Spring Freeze
March 21
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,486
Higher = more heating needed
Cooling Degree Days
2,186
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Related Data
PlainEnviro
EPA environmental data — pollution, water quality, and environmental health by location
PlainCarbon
Carbon emissions data — greenhouse gas reporting and facility-level CO2 data
PlainHazard
Natural disaster data — weather-related hazards, FEMA declarations, and risk profiles
PlainAirData
EPA air quality data — AQI readings, pollutant levels, and air quality trends
Climate Guides
Climate Insight: Aiken, SC
The NOAA 1991–2020 climate normals describe Aiken, South Carolina as a location with an annual average temperature of 64°F, ranging from a mean daily high of 75°F to a mean daily low of 53°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from 2 weather stations, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Aiken receives roughly 50.8 inches of precipitation each year, with 0.7 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near March 21 and the first fall freeze near November 7. For energy use, 2,486 heating degree days and 2,186 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Aiken scores 82/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Frequently Asked Questions
What is the average temperature in Aiken, SC? ▼
The average annual temperature in Aiken, South Carolina is 64°F. The warmest month averages 93°F (34°C) and the coldest averages 35°F (1°C).
How much rain does Aiken get? ▼
Aiken receives 50.8 inches of precipitation annually, including 0.7 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Aiken? ▼
Aiken has a climate comfort score of 82/100 (Excellent). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Aiken? ▼
Growing season data is not available for Aiken.
How much energy does heating and cooling require in Aiken? ▼
Aiken has 2,486 heating degree days and 2,186 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Aiken climate data come from? ▼
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from 2 weather stations. These 30-year averages are the standard reference for typical weather conditions.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00380074. For informational purposes only.
Read our methodology — how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
