Weather History for Charleston, SC

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Sunday, May 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 74 °F 72 °F  
Max Temperature 84 °F 83 °F 95 °F (2000)
Min Temperature 64 °F 61 °F 41 °F (1947)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 5 8  
Since 1 July heating degree days 1842 1971  
Cooling Degree Days 9 7  
Month to date cooling degree days 56 69  
Year to date cooling degree days 179 187  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 58 °F    
Average Humidity 58    
Maximum Humidity 84    
Minimum Humidity 31    
Precipitation  
Precipitation T in 0.09 in 2.45 in (1999)
Month to date precipitation 1.49 1.10  
Year to date precipitation 21.94 14.39  
Sea Level Pressure  
Sea Level Pressure 29.92 in    
Wind  
Wind Speed 9 mph (West)    
Max Wind Speed 18 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 12, 2013 Rise Set
Actual Time 6:23 AM EDT 8:10 PM EDT
Civil Twilight 5:56 AM EDT 8:37 PM EDT
Nautical Twilight 5:23 AM EDT 9:10 PM EDT
Astronomical Twilight 4:48 AM EDT 9:44 PM EDT
Moon 8:18 AM EDT (5/12) 10:34 PM EDT (5/12)
Length of Visible Light 14h 41m
Length of Day
13h 47m
Waxing Crescent, 6% of the Moon is Illuminated
May 12
Waxing Crescent
May 18
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
New

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 73.0 °F - 66.9 °F 81% 29.89 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
1:56 AM 73.0 °F - 66.9 °F 81% 29.90 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
2:56 AM 73.0 °F - 64.0 °F 73% 29.88 in 10.0 mi WSW 8.1 mph - 0.00 in   Overcast
3:56 AM 72.0 °F - 64.9 °F 78% 29.87 in 10.0 mi WSW 5.8 mph - N/A   Overcast
4:56 AM 71.1 °F - 64.9 °F 81% 29.87 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
5:56 AM 70.0 °F - 64.0 °F 81% 29.87 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
6:56 AM 70.0 °F - 64.0 °F 81% 29.90 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
7:56 AM 71.1 °F - 64.0 °F 78% 29.91 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
8:56 AM 73.0 °F - 63.0 °F 71% 29.92 in 10.0 mi WNW 8.1 mph 18.4 mph N/A   Mostly Cloudy
9:34 AM 75.2 °F - 62.6 °F 65% 29.92 in 10.0 mi NW 8.1 mph - N/A   Scattered Clouds
9:56 AM 75.9 °F - 62.1 °F 62% 29.92 in 10.0 mi WNW 10.4 mph - N/A   Scattered Clouds
10:56 AM 78.1 °F - 61.0 °F 56% 29.93 in 10.0 mi WNW 11.5 mph - N/A   Scattered Clouds
11:56 AM 79.0 °F - 60.1 °F 52% 29.93 in 10.0 mi WNW 9.2 mph - N/A   Scattered Clouds
12:56 PM 81.0 °F 81.1 °F 57.9 °F 45% 29.92 in 10.0 mi West 11.5 mph 17.3 mph N/A   Scattered Clouds
1:56 PM 82.0 °F 81.4 °F 55.0 °F 39% 29.91 in 10.0 mi West 13.8 mph - N/A   Scattered Clouds
2:56 PM 82.9 °F 81.8 °F 53.1 °F 36% 29.90 in 10.0 mi WNW 16.1 mph 20.7 mph N/A   Scattered Clouds
3:56 PM 82.9 °F - 52.0 °F 34% 29.89 in 10.0 mi WNW 13.8 mph 19.6 mph N/A   Scattered Clouds
4:56 PM 82.9 °F - 52.0 °F 34% 29.89 in 10.0 mi NW 11.5 mph 18.4 mph N/A   Scattered Clouds
5:56 PM 82.0 °F - 48.9 °F 31% 29.90 in 10.0 mi WNW 13.8 mph 18.4 mph N/A   Scattered Clouds
6:56 PM 80.1 °F - 50.0 °F 35% 29.92 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
7:56 PM 77.0 °F - 48.9 °F 37% 29.94 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
8:56 PM 72.0 °F - 52.0 °F 49% 29.96 in 10.0 mi WSW 5.8 mph - N/A   Scattered Clouds
9:56 PM 71.1 °F - 52.0 °F 51% 29.99 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
10:56 PM 69.1 °F - 51.1 °F 53% 30.01 in 10.0 mi WNW 5.8 mph - N/A   Clear
11:56 PM 66.9 °F - 50.0 °F 54% 30.02 in 10.0 mi WNW 6.9 mph - N/A   Clear