Sumter, South Carolina Climate
United States
Pop. 40,816 Elev. 54 m / 177 ft
TZ: America/New_York (UTC-4) ·
Summers in Sumter are warm, with July highs around 94°F (34°C), while winters are cold with January lows of 32°F (0°C). Humidity pushes the summer feels-like temperature to around 116°F (47°C). Expect around 57 rainy days annually (38.3 in / 973 mm total), with snow on 1 days and 4 in (96 mm) of annual accumulation. The city averages 153 sunny days per year and around 35 thunderstorm days. Nearby lake water reaches 84°F (29°C) in summer.
| Temperature | 94°F (34°C) high | 32°F (0°C) low |
| Feels like | 116°F (47°C) high | 28°F (-2°C) low |
| Rain | 57 days | 38.3 in (973 mm) /yr |
| Snow | 1 days | 3.8 in (96 mm) /yr |
| Sky | 153 sunny | 35 stormy |
| Wind | 3.0 mph (1.4 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Feb, Mar, Apr, Sep, Nov
Sky & Air by Month
Cloud cover (%)
39
Jan 46
Feb 41
Mar 54
Apr 67
May 54
Jun 63
Jul 69
Aug 44
Sep 48
Oct 29
Nov 46
Dec Humidity (%)
52
Jan 58
Feb 42
Mar 59
Apr 64
May 64
Jun 67
Jul 72
Aug 59
Sep 67
Oct 56
Nov 64
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 40 mi Florence Regional Airport (FLO)
Ski resort 173 mi Appalachian Mountain Ski Area
National park 82 mi Fort Sumter and Fort Moultrie National Historical Park, Liberty Square
Mountain peak
(5,053 ft) 164 mi Green Knob
Hospital 0 mi Prisma Health Toumey Hospital
Hiking trail 4 mi Cypress Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 53°F 12°C | 32°F 0°C | 1.3 in 33 mm | 3.7 in93 mm | 16 |
| February | 65°F 18°C | 42°F 6°C | 1.4 in 36 mm | 0.1 in3 mm | 15 |
| March | 74°F 23°C | 49°F 10°C | 2.9 in 73 mm | — | 19 |
| April | 79°F 26°C | 59°F 15°C | 2.5 in 63 mm | — | 11 |
| May | 83°F 28°C | 66°F 19°C | 5.1 in 129 mm | — | 6 |
| June | 92°F 33°C | 74°F 23°C | 3.0 in 75 mm | — | 10 |
| July | 94°F 34°C | 77°F 25°C | 4.4 in 112 mm | — | 5 |
| August | 85°F 30°C | 72°F 22°C | 5.9 in 150 mm | — | 5 |
| September | 87°F 31°C | 67°F 19°C | 1.8 in 45 mm | — | 16 |
| October | 73°F 23°C | 55°F 13°C | 7.0 in 177 mm | — | 14 |
| November | 70°F 21°C | 46°F 8°C | 0.4 in 10 mm | — | 21 |
| December | 59°F 15°C | 39°F 4°C | 2.7 in 69 mm | — | 15 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 16 | 0 |
| February | 15 | 1 |
| March | 19 | 2 |
| April | 11 | 2 |
| May | 6 | 5 |
| June | 10 | 2 |
| July | 5 | 8 |
| August | 5 | 8 |
| September | 16 | 1 |
| October | 14 | 5 |
| November | 21 | 0 |
| December | 15 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 42°F 6°C |
| February | 54°F 12°C |
| March | 58°F 14°C |
| April | 69°F 20°C |
| May | 74°F 23°C |
| June | 81°F 27°C |
| July | 84°F 29°C |
| August | 80°F 27°C |
| September | 76°F 24°C |
| October | 65°F 18°C |
| November | 57°F 14°C |
| December | 48°F 9°C |