Georgetown, SC climate
Georgetown has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 90°, a January night drops to 37°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Georgetown feels like
Winter
Spring
Summer
Fall
Georgetown weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 58° | 37° | 3.5" | 41° – 53° |
| February | 60° | 40° | 3.3" | 42° – 58° |
| March | 67° | 45° | 3.7" | 49° – 63° |
| April | 74° | 53° | 3.4" | 60° – 68° |
| May | 81° | 61° | 3.7" | 68° – 75° |
| June | 87° | 69° | 5.4" | 73° – 82° |
| July | 90° | 73° | 6.3" | 79° – 84° |
| August | 88° | 72° | 6.7" | 77° – 84° |
| September | 84° | 67° | 5.9" | 73° – 80° |
| October | 76° | 56° | 4.6" | 63° – 71° |
| November | 67° | 45° | 3.1" | 51° – 62° |
| December | 61° | 39° | 3.8" | 40° – 61° |
| Year | 74° | 55° | 53.4" |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Georgetown
Georgetown gets 53 inches of rain and melted snow a year. August is the wettest month and November the driest.
About 258 frost-free days a year
In half of years the last 32° night comes by March 12 and the first one by November 24. That leaves about 258 frost-free days for gardens, longer than 91% of U.S. towns.
Heating and cooling a home in Georgetown
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Georgetown, 49% of that work is heating and 51% is cooling.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How Georgetown compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Georgetown averaged 0.7° warmer than the 1900s. The biggest change is in December (+2.0°). The shift is smaller than in 90% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Georgetown’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 40° to 61°. July is the most reliable, staying within 5°.
Common questions about Georgetown’s climate
What is the coldest month in Georgetown?
January, with a typical high of 58° and a low of 37°.
What is the hottest month in Georgetown?
July, with a typical high of 90° and a low of 73°. About 67 days a year reach 90°.
When is the first frost in Georgetown?
In half of years the first 32° night comes by November 24, and the last spring frost by March 12.
What is the rainiest month in Georgetown?
August, with 6.7 inches of rain and melted snow. The year totals 53 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Georgetown itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Georgetown Co Airport, SC (5 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.