Summit, SC climate
Summit has mild winters and warm summers. A typical July afternoon reaches 92°, a January night drops to 34°, and about 1 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Summit feels like
Winter
Spring
Summer
Fall
Summit weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 56° | 34° | 4.0" | 0.9" | 9 | 0 | 39° – 51° |
| February | 60° | 36° | 3.7" | 0 | 8 | 0 | 40° – 58° |
| March | 67° | 42° | 4.2" | 0 | 8 | 0 | 48° – 64° |
| April | 76° | 50° | 3.3" | 0 | 7 | 0 | 58° – 68° |
| May | 83° | 58° | 3.3" | 0 | 7 | 0 | 66° – 76° |
| June | 89° | 66° | 4.9" | 0 | 9 | 0 | 73° – 81° |
| July | 92° | 70° | 4.4" | 0 | 10 | 0 | 78° – 84° |
| August | 90° | 69° | 4.6" | 0 | 9 | 0 | 76° – 85° |
| September | 85° | 63° | 4.0" | 0 | 7 | 0 | 71° – 80° |
| October | 76° | 51° | 3.3" | 0 | 6 | 0 | 60° – 68° |
| November | 65° | 41° | 3.2" | 0.2" | 7 | 0 | 49° – 58° |
| December | 58° | 36° | 4.2" | 0 | 9 | 0 | 37° – 58° |
| Year | 75° | 51° | 47.0" | 1.1" | 94 | 0 |
“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 Summit
Summit gets 47 inches of rain and melted snow a year. June is the wettest month and November the driest. Rain or snow falls on about 94 days a year.
About 244 frost-free days a year
In half of years the last 32° night comes by March 20 and the first one by November 18. That leaves about 244 frost-free days for gardens, longer than 89% of U.S. towns.
Heating and cooling a home in Summit
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Summit, 58% of that work is heating and 42% 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 Summit 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 Summit averaged 1.1° warmer than the 1900s. The biggest change is in February (+1.9°). The shift is smaller than in 63% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Summit’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 37° to 58°. July is the most reliable, staying within 6°.
Common questions about Summit’s climate
What is the coldest month in Summit?
January, with a typical high of 56° and a low of 34°.
What is the hottest month in Summit?
July, with a typical high of 92° and a low of 70°. About 57 days a year reach 90°.
How much snow does Summit get?
About 1 inches in a normal winter, most of it in January.
When is the first frost in Summit?
In half of years the first 32° night comes by November 18, and the last spring frost by March 20.
What is the rainiest month in Summit?
June, with 4.9 inches of rain and melted snow. The year totals 47 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Summit itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Batesburg, SC (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.