Weather History for Charleston, SC

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Friday, May 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 77 °F 73 °F  
Max Temperature 88 °F 84 °F 96 °F (1963)
Min Temperature 65 °F 62 °F 49 °F (1967)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 9 8  
Since 1 July heating degree days 1846 1971  
Cooling Degree Days 12 8  
Month to date cooling degree days 87 107  
Year to date cooling degree days 210 225  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 63 °F    
Average Humidity 67    
Maximum Humidity 93    
Minimum Humidity 40    
Precipitation  
Precipitation 0.00 in 0.09 in 0.88 in (1980)
Month to date precipitation 1.49 1.53  
Year to date precipitation 21.94 14.82  
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 7 mph (SSW)    
Max Wind Speed 15 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 17, 2013 Rise Set
Actual Time 6:19 AM EDT 8:14 PM EDT
Civil Twilight 5:52 AM EDT 8:41 PM EDT
Nautical Twilight 5:19 AM EDT 9:14 PM EDT
Astronomical Twilight 4:43 AM EDT 9:49 PM EDT
Moon 12:41 PM EDT (5/17) 1:13 AM EDT (5/17)
Length of Visible Light 14h 49m
Length of Day
13h 54m
Waxing Crescent, 45% of the Moon is Illuminated
May 17
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 68.0 °F - 63.0 °F 84% 30.07 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:56 AM 66.0 °F - 63.0 °F 90% 30.06 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
2:56 AM 66.9 °F - 63.0 °F 87% 30.05 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
3:56 AM 66.0 °F - 63.0 °F 90% 30.06 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds
4:56 AM 64.9 °F - 62.1 °F 90% 30.06 in 10.0 mi SSW 5.8 mph - N/A   Partly Cloudy
5:56 AM 64.9 °F - 62.1 °F 90% 30.08 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds
6:56 AM 68.0 °F - 64.9 °F 90% 30.10 in 10.0 mi WSW 4.6 mph - N/A   Scattered Clouds
7:56 AM 71.1 °F - 66.0 °F 84% 30.12 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds
8:56 AM 75.0 °F - 62.1 °F 64% 30.12 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds
9:56 AM 79.0 °F - 62.1 °F 56% 30.12 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds
10:56 AM 82.0 °F 83.0 °F 62.1 °F 51% 30.13 in 10.0 mi SW 9.2 mph - N/A   Scattered Clouds
11:56 AM 84.0 °F 84.9 °F 63.0 °F 49% 30.12 in 10.0 mi WSW 8.1 mph - N/A   Scattered Clouds
12:56 PM 86.0 °F 86.3 °F 62.1 °F 44% 30.11 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
1:56 PM 87.1 °F 87.0 °F 61.0 °F 41% 30.09 in 10.0 mi SSW 5.8 mph - N/A   Scattered Clouds
2:56 PM 88.0 °F 88.4 °F 62.1 °F 42% 30.09 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
3:56 PM 86.0 °F 87.6 °F 64.9 °F 49% 30.07 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
4:56 PM 87.1 °F 87.5 °F 62.1 °F 43% 30.07 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
5:56 PM 84.0 °F 84.9 °F 63.0 °F 49% 30.07 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
6:56 PM 80.1 °F 81.5 °F 63.0 °F 56% 30.07 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
7:56 PM 75.9 °F - 60.1 °F 58% 30.09 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
8:56 PM 72.0 °F - 60.1 °F 66% 30.10 in 10.0 mi SSW 8.1 mph - N/A   Scattered Clouds
9:56 PM 70.0 °F - 62.1 °F 76% 30.12 in 10.0 mi SSW 6.9 mph - N/A   Partly Cloudy
10:56 PM 70.0 °F - 63.0 °F 78% 30.12 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
11:56 PM 69.1 °F - 63.0 °F 81% 30.13 in 10.0 mi South 5.8 mph - N/A   Scattered Clouds