Charleston, SC on Sunday, September 12, 2010 Sunday January February March April May June July August September October November December 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 Previous Day Next Day Daily Summary   Actual Average Record Temperature Mean Temperature °F 77°F   Max Temperature 90°F 86°F 94°F (1933) Min Temperature 74°F 68°F 52°F (1976) Degree Days Heating Degree Days 0 0   Month to date heating degree days 0 0   Since 1 July heating degree days 0 0   Cooling Degree Days 17 12   Month to date cooling degree days 190 159   Year to date cooling degree days 2310 1964   Growing Degree Days 32 (Base °F )     Moisture Dew Point 74°F     Average Humidity 76     Maximum Humidity 100     Minimum Humidity 52     Precipitation Precipitation 0.06 in 0.23 in 1.89 in (1964) Month to date precipitation 0.23 2.77   Year to date precipitation 46.07 38.41   Wind Wind Speed 5 mph     Max Wind Speed 13 mph     Max Gust Speed 16 mph     Visibility 7 miles     Events Rain , Thunderstorm     Key: T is trace of precipitation, MM is missing value Source: NWS Daily Summary Time(EDT) Temperature Dew Point Humidity Pressure Visibility Wind Direction Wind Speed Gust Speed Precipitation Events Conditions 12:56 AM 73.9°F 72.0°F 93% 29.94 in 10.0 miles South 3.5 mph - N/A   Scattered Clouds 1:56 AM 75.0°F 73.9°F 96% 29.93 in 9.0 miles Calm Calm - N/A   Clear 2:56 AM 77.0°F 75.0°F 94% 29.92 in 8.0 miles SSW 3.5 mph - N/A   Mostly Cloudy 3:56 AM 78.1°F 75.9°F 93% 29.91 in 7.0 miles Calm Calm - N/A   Partly Cloudy 4:20 AM 75.2°F 75.2°F 100% 29.91 in 6.0 miles Calm Calm - N/A   Mostly Cloudy 4:23 AM 75.2°F 75.2°F 100% 29.90 in 6.0 miles WNW 5.8 mph - N/A   Mostly Cloudy 4:29 AM 77.0°F 75.2°F 94% 29.91 in 6.0 miles NW 10.4 mph - N/A   Overcast 4:34 AM 75.2°F 75.2°F 100% 29.91 in 6.0 miles NW 9.2 mph - N/A   Overcast 4:50 AM 75.2°F 73.4°F 94% 29.91 in 5.0 miles WNW 10.4 mph - N/A Thunderstorm Overcast 4:56 AM 75.0°F 73.9°F 96% 29.92 in 2.5 miles WNW 11.5 mph - 0.00 in Rain , Thunderstorm Light Thunderstorms and Rain 5:11 AM 75.2°F 73.4°F 94% 29.93 in 5.0 miles SW 10.4 mph - 0.05 in Rain , Thunderstorm Light Thunderstorms and Rain 5:43 AM 75.2°F 73.4°F 94% 29.91 in 7.0 miles West 5.8 mph - 0.06 in   Mostly Cloudy 5:53 AM 75.2°F 73.4°F 94% 29.91 in 6.0 miles WNW 5.8 mph - 0.06 in   Partly Cloudy 5:56 AM 75.0°F 73.9°F 96% 29.91 in 6.0 miles West 4.6 mph - 0.06 in   Partly Cloudy 6:56 AM 73.9°F 73.0°F 97% 29.91 in 6.0 miles Calm Calm - N/A   Partly Cloudy 7:08 AM 73.4°F 73.4°F 100% 29.91 in 6.0 miles WSW 3.5 mph - N/A   Partly Cloudy 7:56 AM 75.0°F 73.9°F 96% 29.94 in 6.0 miles West 4.6 mph - N/A   Partly Cloudy 8:18 AM 75.2°F 73.4°F 94% 29.94 in 5.0 miles West 6.9 mph - N/A   Mostly Cloudy 8:37 AM 75.2°F 73.4°F 94% 29.94 in 6.0 miles WNW 5.8 mph - N/A   Overcast 8:56 AM 75.9°F 73.9°F 94% 29.94 in 5.0 miles WNW 5.8 mph - N/A   Mostly Cloudy 9:56 AM 78.1°F 73.9°F 87% 29.96 in 6.0 miles WNW 4.6 mph - N/A   Partly Cloudy 10:56 AM 82.0°F 73.9°F 76% 29.97 in 7.0 miles NNW 6.9 mph - N/A   Scattered Clouds 11:56 AM 84.9°F 73.9°F 69% 29.96 in 7.0 miles North 10.4 mph - N/A   Scattered Clouds 12:56 PM 84.9°F 73.0°F 67% 29.95 in 7.0 miles NNW 5.8 mph - N/A   Scattered Clouds 1:56 PM 88.0°F 73.0°F 61% 29.93 in 8.0 miles Variable 6.9 mph - N/A   Scattered Clouds 2:56 PM 87.1°F 73.0°F 63% 29.91 in 8.0 miles NNE 6.9 mph - N/A   Scattered Clouds 3:56 PM 89.1°F 72.0°F 57% 29.90 in 9.0 miles NNE 9.2 mph - N/A   Partly Cloudy 4:56 PM 90.0°F 71.1°F 54% 29.90 in 10.0 miles NE 5.8 mph - N/A   Scattered Clouds 5:56 PM 89.1°F 70.0°F 53% 29.91 in 10.0 miles North 4.6 mph - N/A   Partly Cloudy 6:56 PM 86.0°F 71.1°F 61% 29.92 in 10.0 miles NNE 4.6 mph - N/A   Partly Cloudy 7:56 PM 81.0°F 75.0°F 82% 29.93 in 7.0 miles SSE 5.8 mph - N/A   Partly Cloudy 8:56 PM 79.0°F 75.0°F 88% 29.96 in 6.0 miles South 3.5 mph - N/A   Clear 9:56 PM 78.1°F 75.0°F 90% 29.96 in 6.0 miles South 3.5 mph - N/A   Clear 10:56 PM 78.1°F 75.0°F 90% 29.96 in 6.0 miles Calm Calm - N/A   Clear 11:56 PM 78.1°F 75.9°F 93% 29.96 in 5.0 miles Calm Calm - N/A   Clear Astronomy Sunrise: 07:01 AM (EDT) Moon Rise: 11:49 AM (EDT) 9/12 Sunset: 07:30 PM (EDT) Moon Set: 10:12 PM (EDT) 9/12 Moon Phase Sep. 12 Sep. 15 Sep. 23 Sep. 30 Oct. 07 Copyright © 2012 The Weather Underground, Inc.