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, 74°F | Humidity: 28% | Dewpoint: 39°F |
| Wind Speed: E 4.6 MPH (4 KT) | Heat Index: 74°F | ||
| Barometer: 30.25 in. | Wind Chill: 74°F |
Weather Forecast
 | Hi: 75°F | This afternoon: Sunny. Highs in the mid 70s. South winds around 5 mph. |
| Lo: 45°F | ||
| Hi: 71°F | Monday: Sunny. Highs in the lower 70s. Northeast winds around 5 mph. |
| Lo: 51°F | ||
 | Hi: 65°F | Tuesday: Showers likely. Highs in the mid 60s. Northeast winds around 5 mph. Chance of rain 60 percent. |
| Lo: 49°F | ||
| Hi: 61°F | Veterans day: Mostly sunny. Highs in the lower 60s. |
| Lo: 40°F | ||
| Hi: 65°F | Thursday: Mostly clear. Lows around 40. Highs in the mid 60s. |
| Lo: 40°F | ||
| Hi: 65°F | Friday: Mostly clear. Lows around 40. Highs in the mid 60s. |
| Lo: 40°F | ||
| Hi: 65°F | Friday: Mostly clear. Lows around 40. Highs in the mid 60s. |
| Lo: 49°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waning Gibbous Moon | Civil Twilight: 6:29 AM EST |
Sunrise: 6:55 AM EST |
| Sunset: 5:28 PM EST |
Civil Twilight: 5:54 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 |
