Slater-Marietta, SC climate
Slater-Marietta has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 88°, a January night drops to 32°, and about 1 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Slater-Marietta feels like
Winter
Spring
Summer
Fall
Slater-Marietta 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 | 52° | 32° | 5.3" | 0.6" | 9 | 0 | 35° – 48° |
| February | 56° | 34° | 4.5" | 0.1" | 8 | 0 | 37° – 53° |
| March | 63° | 40° | 5.2" | 0.1" | 9 | 0 | 45° – 61° |
| April | 72° | 48° | 4.9" | 0 | 9 | 0 | 55° – 64° |
| May | 79° | 56° | 4.7" | 0 | 9 | 0 | 63° – 72° |
| June | 85° | 65° | 5.2" | 0 | 10 | 0 | 70° – 79° |
| July | 88° | 69° | 5.3" | 0 | 10 | 0 | 76° – 82° |
| August | 86° | 68° | 5.9" | 0 | 10 | 0 | 73° – 82° |
| September | 81° | 62° | 4.9" | 0 | 7 | 0 | 68° – 77° |
| October | 72° | 50° | 4.4" | 0 | 6 | 0 | 57° – 66° |
| November | 62° | 40° | 4.5" | 0 | 7 | 0 | 46° – 56° |
| December | 54° | 35° | 5.7" | 0.6" | 9 | 0 | 35° – 55° |
| Year | 71° | 50° | 60.6" | 1.4" | 105 | 1 |
“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 Slater-Marietta
Slater-Marietta gets 61 inches of rain and melted snow a year. August is the wettest month and October the driest. Rain or snow falls on about 105 days a year.
About 205 frost-free days a year
In half of years the last 32° night comes by April 9 and the first one by November 1. That leaves about 205 frost-free days for gardens, longer than 75% of U.S. towns.
Heating and cooling a home in Slater-Marietta
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Slater-Marietta, 73% of that work is heating and 27% 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 Slater-Marietta 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 Slater-Marietta averaged 1.1° warmer than the 1900s. The biggest change is in December (+2.3°). The shift is smaller than in 59% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Slater-Marietta’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 35° to 55°. July is the most reliable, staying within 7°.
Common questions about Slater-Marietta’s climate
What is the coldest month in Slater-Marietta?
January, with a typical high of 52° and a low of 32°.
What is the hottest month in Slater-Marietta?
July, with a typical high of 88° and a low of 69°. About 37 days a year reach 90°.
How much snow does Slater-Marietta get?
About 1 inches in a normal winter, most of it in January.
When is the first frost in Slater-Marietta?
In half of years the first 32° night comes by November 1, and the last spring frost by April 9.
What is the rainiest month in Slater-Marietta?
August, with 5.9 inches of rain and melted snow. The year totals 61 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Slater-Marietta itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Cleveland 3s, SC (1 mi, snow) and Table Rock, SC (11 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.