Duncan, SC Weather
Duncan, SC climate is warm during summer when temperatures tend to be in the 70's and cold during winter when temperatures tend to be in the 40's.
The warmest month of the year is July with an average maximum temperature of 88.80 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 31.40 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 20 degrees Fahrenheit, and moderate during winter with an average difference of 20 degrees Fahrenheit.
The annual average precipitation at Duncan is 50.24 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is March with an average rainfall of 5.31 Inches.
Weather Data
Current Conditions
|
Fair, 31°F | Humidity: 56% | Dewpoint: 17°F |
| Wind Speed: SW 5 MPH | Heat Index: 31°F | ||
| Barometer: 30.44 in. | Wind Chill: 26°F |
Weather Forecast
 | Hi: 55°F | Today: Sunny. Highs in the mid 50s. South winds around 5 mph. |
| Lo: 31°F | ||
 | Hi: 51°F | Monday: Partly sunny in the morning...Then cloudy with rain showers likely in the afternoon. Highs in the lower 50s. Southwest winds 10 to 15 mph. Chance of rain 70 percent. |
| Lo: 35°F | ||
| Hi: 51°F | Tuesday: Mostly sunny. Highs in the lower 50s. Northwest winds 5 to 10 mph. |
| Lo: 29°F | ||
| Hi: 51°F | Wednesday: Mostly clear. Highs in the lower 50s. Lows in the upper 20s. |
| Lo: 29°F | ||
| Hi: 55°F | Thanksgiving day: Sunny. Highs in the mid 50s. |
| Lo: 31°F | ||
 | Hi: 55°F | Friday: Partly cloudy. Lows in the lower 30s. Highs in the mid 50s. |
| Lo: 39°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waning Crescent Moon | Civil Twilight: 6:43 AM EST |
Sunrise: 7:10 AM EST |
| Sunset: 5:19 PM EST |
Civil Twilight: 5:46 PM EST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 50.2 | 54.8 | 62.7 | 71.0 | 78.2 | 85.1 | 88.8 | 87.1 | 81.1 | 71.4 | 61.3 | 52.7 | 70.4 |
| Mean °F | 40.8 | 44.4 | 51.6 | 59.0 | 67.2 | 74.7 | 78.8 | 77.5 | 71.4 | 60.5 | 51.1 | 43.5 | 60.0 |
| Min °F | 31.4 | 33.9 | 40.5 | 47.0 | 56.2 | 64.3 | 68.7 | 67.9 | 61.7 | 49.7 | 41.0 | 34.3 | 49.7 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 4.41 | 4.24 | 5.31 | 3.54 | 4.59 | 3.92 | 4.65 | 4.08 | 3.97 | 3.88 | 3.79 | 3.86 | 50.24 |
