Duncan, South Carolina Climate
United States
Pop. 3,317 Elev. 264 m / 866 ft
TZ: America/New_York (UTC-4) ·
Summers in Duncan are warm, with July highs around 91°F (33°C), while winters are cold with January lows of 27°F (-3°C). Humidity pushes the summer feels-like temperature to around 108°F (42°C). Expect around 61 rainy days annually (40.6 in / 1032 mm total), with snow on 1 days and 5 in (137 mm) of annual accumulation. The city averages 144 sunny days per year and around 43 thunderstorm days. Nearby lake water reaches 84°F (29°C) in summer.
| Temperature | 91°F (33°C) high | 27°F (-3°C) low |
| Feels like | 108°F (42°C) high | 27°F (-3°C) low |
| Rain | 61 days | 40.6 in (1032 mm) /yr |
| Snow | 1 days | 5.4 in (137 mm) /yr |
| Sky | 144 sunny | 43 stormy |
| Wind | 2.3 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Feb, Mar, Apr, Jun, Sep, Oct, Nov
Sky & Air by Month
Cloud cover (%)
37
Jan 47
Feb 42
Mar 58
Apr 72
May 58
Jun 56
Jul 69
Aug 48
Sep 47
Oct 34
Nov 47
Dec Humidity (%)
57
Jan 63
Feb 49
Mar 64
Apr 71
May 72
Jun 67
Jul 80
Aug 75
Sep 67
Oct 59
Nov 63
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 5 mi Greenville-Spartanburg International Airport (GSP)
Ski resort 53 mi Sapphire Valley Ski Resort
National park 106 mi Redcliffe Plantation State Historic Site
Mountain peak
(5,000 ft) 52 mi Little Slaty
Hospital 6 mi Prisma Health Greer Memorial Hospital
Hiking trail 12 mi Palmetto Trail: Peach Country Passage
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 48°F 9°C | 27°F -3°C | 1.1 in 28 mm | 4.8 in121 mm | 17 |
| February | 60°F 16°C | 38°F 3°C | 3.4 in 87 mm | 0.6 in15 mm | 12 |
| March | 68°F 20°C | 44°F 7°C | 2.6 in 66 mm | — | 17 |
| April | 75°F 24°C | 55°F 13°C | 3.9 in 99 mm | — | 10 |
| May | 76°F 24°C | 59°F 15°C | 7.8 in 197 mm | — | 5 |
| June | 87°F 30°C | 68°F 20°C | 3.8 in 97 mm | — | 8 |
| July | 91°F 33°C | 73°F 23°C | 3.1 in 80 mm | — | 10 |
| August | 81°F 27°C | 67°F 19°C | 8.3 in 210 mm | — | 6 |
| September | 80°F 27°C | 62°F 16°C | 1.2 in 31 mm | — | 12 |
| October | 71°F 22°C | 52°F 11°C | 3.3 in 83 mm | — | 15 |
| November | 65°F 18°C | 42°F 6°C | 0.7 in 17 mm | 0.0 in0 mm | 19 |
| December | 55°F 13°C | 35°F 2°C | 1.5 in 39 mm | 0.0 in1 mm | 13 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 17 | 1 |
| February | 12 | 1 |
| March | 17 | 2 |
| April | 10 | 3 |
| May | 5 | 7 |
| June | 8 | 6 |
| July | 10 | 6 |
| August | 6 | 12 |
| September | 12 | 2 |
| October | 15 | 3 |
| November | 19 | 0 |
| December | 13 | 0 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 40°F 5°C |
| February | 43°F 6°C |
| March | 49°F 10°C |
| April | 60°F 15°C |
| May | 69°F 20°C |
| June | 79°F 26°C |
| July | 84°F 29°C |
| August | 78°F 26°C |
| September | 74°F 23°C |
| October | 64°F 18°C |
| November | 53°F 12°C |
| December | 46°F 8°C |