Weather History for Charleston, SC

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Tuesday, May 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 74 °F 74 °F  
Max Temperature 79 °F 84 °F 99 °F (1938)
Min Temperature 68 °F 63 °F 45 °F (2002)
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 9 9  
Month to date cooling degree days 132 142  
Year to date cooling degree days 255 260  
Growing Degree Days 24 (Base 50)    
Moisture  
Dew Point 68 °F    
Average Humidity 80    
Maximum Humidity 93    
Minimum Humidity 67    
Precipitation  
Precipitation 1.41 in 0.10 in 1.41 in (2013)
Month to date precipitation 2.99 1.90  
Year to date precipitation 23.44 15.19  
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 4 mph (SSE)    
Max Wind Speed 22 mph    
Max Gust Speed 26 mph    
Visibility 9 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

May. 21, 2013 Rise Set
Actual Time 6:17 AM EDT 8:16 PM EDT
Civil Twilight 5:49 AM EDT 8:44 PM EDT
Nautical Twilight 5:16 AM EDT 9:18 PM EDT
Astronomical Twilight 4:40 AM EDT 9:53 PM EDT
Moon 4:39 PM EDT (5/21) 3:31 AM EDT (5/21)
Length of Visible Light 14h 54m
Length of Day
13h 59m
Waxing Gibbous, 84% of the Moon is Illuminated
May 21
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 70.0 °F 66.9 °F 90% 30.05 in 10.0 mi South 3.5 mph - 0.00 in   Mostly Cloudy
1:56 AM 71.1 °F 68.0 °F 90% 30.04 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
2:56 AM 71.1 °F 68.0 °F 90% 30.02 in 10.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
3:56 AM 72.0 °F 69.1 °F 91% 30.02 in 10.0 mi Calm Calm - N/A   Overcast
4:18 AM 71.6 °F 69.8 °F 94% 30.03 in 10.0 mi Calm Calm - N/A   Overcast
4:56 AM 73.0 °F 69.1 °F 87% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
5:18 AM 73.4 °F 69.8 °F 88% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
5:56 AM 72.0 °F 69.1 °F 91% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
6:30 AM 71.6 °F 69.8 °F 94% 30.06 in 8.0 mi North 3.5 mph - N/A   Overcast
6:56 AM 73.0 °F 70.0 °F 90% 30.07 in 7.0 mi ENE 5.8 mph - 0.00 in Rain Light Rain
7:23 AM 73.4 °F 71.6 °F 94% 30.07 in 10.0 mi Calm Calm - 0.01 in   Overcast
7:56 AM 73.0 °F 70.0 °F 90% 30.07 in 10.0 mi East 4.6 mph - 0.01 in   Overcast
8:56 AM 72.0 °F 69.1 °F 91% 30.09 in 5.0 mi Calm Calm - 0.02 in Rain Light Rain
9:56 AM 75.0 °F 71.1 °F 87% 30.09 in 10.0 mi Calm Calm - 0.02 in   Mostly Cloudy
10:56 AM 75.9 °F 71.1 °F 85% 30.09 in 10.0 mi SSW 4.6 mph - 0.00 in   Mostly Cloudy
11:56 AM 77.0 °F 71.1 °F 82% 30.09 in 10.0 mi SSE 3.5 mph - 0.02 in Rain Light Rain
12:51 PM 73.4 °F 68.0 °F 83% 30.08 in 10.0 mi SSW 11.5 mph - 0.00 in Thunderstorm Thunderstorm
12:56 PM 72.0 °F 68.0 °F 87% 30.08 in 10.0 mi South 11.5 mph - 0.00 in Thunderstorm Thunderstorm
1:23 PM 68.0 °F 64.4 °F 88% 30.10 in 2.0 mi East 16.1 mph 26.5 mph 0.00 in Rain , Thunderstorm Heavy Thunderstorms and Rain
1:26 PM 68.0 °F 64.4 °F 88% 30.10 in 0.8 mi East 16.1 mph 26.5 mph 0.01 in Rain , Thunderstorm Heavy Thunderstorms and Rain
1:33 PM 68.0 °F 64.4 °F 88% 30.10 in 0.8 mi East 11.5 mph 21.9 mph 0.56 in Rain , Thunderstorm Heavy Thunderstorms and Rain
1:46 PM 68.0 °F 66.2 °F 94% 30.09 in 10.0 mi ESE 11.5 mph - 1.30 in Rain , Thunderstorm Light Thunderstorms and Rain
1:56 PM 68.0 °F 64.9 °F 90% 30.09 in 10.0 mi ESE 8.1 mph - 1.30 in Rain , Thunderstorm Light Thunderstorms and Rain
2:05 PM 68.0 °F 64.4 °F 88% 30.08 in 10.0 mi SE 12.7 mph - 0.00 in Rain Light Rain
2:56 PM 70.0 °F 66.0 °F 87% 30.05 in 10.0 mi SSE 3.5 mph - 0.02 in Rain Light Rain
3:56 PM 75.0 °F 69.1 °F 82% 30.02 in 10.0 mi SSW 6.9 mph - 0.02 in   Mostly Cloudy
4:56 PM 78.1 °F 69.1 °F 74% 30.01 in 10.0 mi SE 8.1 mph - N/A   Mostly Cloudy
5:56 PM 79.0 °F 66.9 °F 66% 30.02 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
6:56 PM 77.0 °F 68.0 °F 74% 30.01 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
7:56 PM 73.9 °F 66.9 °F 79% 30.02 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
8:56 PM 72.0 °F 68.0 °F 87% 30.01 in 10.0 mi SSE 8.1 mph - N/A   Scattered Clouds
9:56 PM 72.0 °F 66.9 °F 84% 30.01 in 10.0 mi South 5.8 mph - N/A   Scattered Clouds
10:56 PM 70.0 °F 66.9 °F 90% 30.02 in 10.0 mi South 3.5 mph - N/A   Scattered Clouds
11:56 PM 69.1 °F 66.0 °F 90% 30.02 in 10.0 mi Calm Calm - N/A   Partly Cloudy