Weather History for Charleston, SC

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Thursday, May 17, 2012

  Actual Average (KCHS) Record (KCHS)
Temperature  
Mean Temperature 71 °F 73 °F  
Max Temperature 80 °F 84 °F 96 °F (1963)
Min Temperature 62 °F 62 °F 49 °F (1967)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 8  
Since 1 July heating degree days 1971  
Cooling Degree Days 6 8  
Month to date cooling degree days 107  
Year to date cooling degree days 225  
Growing Degree Days 21 (Base 50)    
Moisture  
Dew Point 66 °F    
Average Humidity 82    
Maximum Humidity 100    
Minimum Humidity 58    
Precipitation  
Precipitation 3.36 in 0.09 in 0.88 in (1980)
Month to date precipitation 1.53  
Year to date precipitation 14.82  
Sea Level Pressure  
Sea Level Pressure 29.93 in    
Wind  
Wind Speed 5 mph (NE)    
Max Wind Speed 24 mph    
Max Gust Speed 31 mph    
Visibility 7 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 17, 2012 Rise Set
Actual Time 6:19 AM EDT 8:13 PM EDT
Civil Twilight 5:52 AM EDT 8:40 PM EDT
Nautical Twilight 5:19 AM EDT 9:14 PM EDT
Astronomical Twilight 4:44 AM EDT 9:49 PM EDT
Moon 4:08 AM EDT (5/17) 5:31 PM EDT (5/17)
Length of Visible Light 14h 48m
Length of Day
13h 53m
Waning Crescent, 10% of the Moon is Illuminated
May 17
Waning Crescent
May 20
New
May 28
First Quarter
Jun 4
Full
Jun 11
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 73.4 °F - 71.6 °F 94% 29.95 in 3.0 mi Calm Calm - 0.01 in   Overcast
12:35 AM 73.4 °F - 69.8 °F 88% 29.94 in 1.2 mi SSE 5.8 mph 21.9 mph 0.14 in Thunderstorm Haze
12:55 AM 71.6 °F - 69.8 °F 94% 29.94 in 5.0 mi NNE 4.6 mph - 0.14 in Thunderstorm Overcast
1:15 AM 71.6 °F - 68.0 °F 88% 29.93 in 8.0 mi NNE 6.9 mph - 0.00 in Thunderstorm Thunderstorm
1:35 AM 71.6 °F - 66.2 °F 83% 29.94 in 3.0 mi SE 18.4 mph 23.0 mph 0.04 in Thunderstorm Overcast
1:55 AM 68.0 °F - 66.2 °F 94% 29.92 in 0.8 mi SE 24.2 mph 31.1 mph 0.53 in Rain , Thunderstorm Heavy Thunderstorms and Rain
2:15 AM 66.2 °F - 64.4 °F 94% 29.93 in 0.5 mi ESE 19.6 mph 24.2 mph 0.81 in Rain , Thunderstorm Heavy Rain
2:35 AM 66.2 °F - 64.4 °F 94% 29.95 in 0.8 mi Calm Calm - 1.25 in Rain , Thunderstorm Heavy Rain
2:55 AM 66.2 °F - 64.4 °F 94% 29.97 in 1.5 mi NNE 6.9 mph - 1.64 in Rain , Thunderstorm Heavy Thunderstorms and Rain
3:15 AM 66.2 °F - 64.4 °F 94% 29.94 in 2.0 mi NE 9.2 mph - 0.11 in Rain , Thunderstorm Heavy Rain
3:35 AM 66.2 °F - 64.4 °F 94% 29.94 in 1.2 mi NNE 5.8 mph - 0.22 in Rain , Thunderstorm Heavy Thunderstorms and Rain
3:55 AM 64.4 °F - 64.4 °F 100% 29.96 in 1.0 mi Calm Calm - 0.38 in Rain , Thunderstorm Heavy Rain
4:15 AM 64.4 °F - 62.6 °F 94% 29.96 in 0.8 mi Calm Calm - 0.39 in Rain , Thunderstorm Heavy Thunderstorms and Rain
4:35 AM 62.6 °F - 60.8 °F 94% 29.92 in 1.2 mi North 9.2 mph - 0.60 in Rain , Thunderstorm Heavy Thunderstorms and Rain
4:55 AM 64.4 °F - 60.8 °F 88% 29.93 in 8.0 mi NNW 5.8 mph - 0.61 in Rain , Thunderstorm Light Rain
5:15 AM 64.4 °F - 60.8 °F 88% 29.93 in 5.0 mi West 4.6 mph - 0.00 in Rain , Thunderstorm Light Rain
5:35 AM 64.4 °F - 62.6 °F 94% 29.93 in 3.0 mi South 5.8 mph - 0.04 in Rain Rain
5:55 AM 64.4 °F - 62.6 °F 94% 29.93 in 5.0 mi WSW 6.9 mph - 0.05 in Rain Light Rain
6:15 AM 64.4 °F - 62.6 °F 94% 29.92 in 6.0 mi West 5.8 mph - 0.00 in   Mostly Cloudy
6:35 AM 64.4 °F - 62.6 °F 94% 29.92 in 4.0 mi Calm Calm - 0.01 in Rain Light Rain
7:35 AM 66.2 °F - 64.4 °F 94% 29.94 in 4.0 mi Calm Calm - 0.00 in   Mist
7:55 AM 66.2 °F - 66.2 °F 100% 29.94 in 5.0 mi Calm Calm - 0.00 in   Mostly Cloudy
8:15 AM 69.8 °F - 66.2 °F 88% 29.94 in 6.0 mi Calm Calm - 0.00 in   Mostly Cloudy
8:35 AM 69.8 °F - 68.0 °F 94% 29.94 in 5.0 mi Calm Calm - 0.00 in   Mostly Cloudy
8:55 AM 73.4 °F - 69.8 °F 88% 29.95 in 6.0 mi Calm Calm - 0.00 in   Scattered Clouds
9:15 AM 75.2 °F - 69.8 °F 83% 29.95 in 6.0 mi Calm Calm - 0.00 in   Haze
9:35 AM 75.2 °F - 69.8 °F 83% 29.95 in 6.0 mi Calm Calm - 0.00 in   Haze
9:55 AM 77.0 °F - 69.8 °F 78% 29.96 in 8.0 mi NW 5.8 mph - 0.00 in   Scattered Clouds
10:15 AM 77.0 °F - 69.8 °F 78% 29.96 in 8.0 mi NNW 8.1 mph - 0.00 in   Mostly Cloudy
10:35 AM 77.0 °F - 68.0 °F 74% 29.96 in 9.0 mi Calm Calm - 0.00 in   Scattered Clouds
10:55 AM 78.8 °F - 68.0 °F 69% 29.96 in 9.0 mi Calm Calm - 0.00 in   Mostly Cloudy
11:35 AM 77.0 °F - 68.0 °F 74% 29.96 in 8.0 mi SSE 4.6 mph - 0.00 in   Mostly Cloudy
11:55 AM 77.0 °F - 68.0 °F 74% 29.96 in 10.0 mi SE 3.5 mph - 0.00 in   Mostly Cloudy
12:15 PM 78.8 °F - 69.8 °F 74% 29.96 in 8.0 mi ESE 5.8 mph - 0.00 in   Mostly Cloudy
12:35 PM 78.8 °F - 68.0 °F 69% 29.95 in 9.0 mi Calm Calm - 0.00 in   Mostly Cloudy
12:55 PM 78.8 °F - 68.0 °F 69% 29.94 in 9.0 mi ESE 8.1 mph - 0.00 in   Mostly Cloudy
1:15 PM 78.8 °F - 68.0 °F 69% 29.92 in 9.0 mi SE 5.8 mph - 0.00 in Thunderstorm Mostly Cloudy
1:35 PM 78.8 °F - 68.0 °F 69% 29.92 in 9.0 mi SSE 6.9 mph - 0.00 in   Scattered Clouds
1:55 PM 78.8 °F - 66.2 °F 65% 29.91 in 10.0 mi SSE 5.8 mph - 0.00 in   Partly Cloudy
2:15 PM 80.6 °F 82.7 °F 66.2 °F 61% 29.90 in 9.0 mi SE 6.9 mph - 0.00 in Thunderstorm Clear
2:55 PM 80.6 °F 82.3 °F 64.4 °F 58% 29.88 in 10.0 mi SSE 10.4 mph 16.1 mph 0.00 in   Clear
3:15 PM 80.6 °F 82.7 °F 66.2 °F 61% 29.90 in 9.0 mi South 6.9 mph - 0.00 in Thunderstorm Scattered Clouds
3:35 PM 78.8 °F - 64.4 °F 61% 29.91 in 10.0 mi South 5.8 mph - 0.00 in Thunderstorm Scattered Clouds
3:55 PM 78.8 °F - 64.4 °F 61% 29.91 in 10.0 mi South 3.5 mph - 0.00 in   Partly Cloudy
4:15 PM 77.0 °F - 64.4 °F 65% 29.92 in 7.0 mi SE 4.6 mph - 0.00 in Thunderstorm Partly Cloudy
4:35 PM 75.2 °F - 64.4 °F 69% 29.91 in 10.0 mi SE 3.5 mph - 0.00 in   Mostly Cloudy
4:55 PM 77.0 °F - 64.4 °F 65% 29.92 in 10.0 mi Calm Calm - 0.00 in Thunderstorm Mostly Cloudy
5:15 PM 73.4 °F - 64.4 °F 73% 29.93 in 10.0 mi NNW 5.8 mph - 0.00 in   Overcast
5:35 PM 71.6 °F - 64.4 °F 78% 29.92 in 9.0 mi NNW 6.9 mph - 0.00 in   Scattered Clouds
5:55 PM 71.6 °F - 66.2 °F 83% 29.92 in 7.0 mi NNW 6.9 mph - 0.00 in   Clear
6:15 PM 71.6 °F - 66.2 °F 83% 29.92 in 7.0 mi North 6.9 mph - 0.00 in   Clear
6:35 PM 71.6 °F - 66.2 °F 83% 29.93 in 7.0 mi North 9.2 mph - 0.00 in   Partly Cloudy
6:55 PM 71.6 °F - 66.2 °F 83% 29.93 in 7.0 mi North 11.5 mph - 0.00 in   Mostly Cloudy
7:15 PM 71.6 °F - 66.2 °F 83% 29.92 in 8.0 mi North 6.9 mph - 0.00 in   Mostly Cloudy
7:35 PM 69.8 °F - 66.2 °F 88% 29.92 in 9.0 mi NNW 3.5 mph - 0.00 in   Scattered Clouds
7:55 PM 71.6 °F - 64.4 °F 78% 29.92 in 8.0 mi NNE 8.1 mph - 0.00 in   Scattered Clouds
8:15 PM 69.8 °F - 64.4 °F 83% 29.91 in 9.0 mi NE 5.8 mph - 0.00 in   Partly Cloudy
8:35 PM 69.8 °F - 64.4 °F 83% 29.91 in 10.0 mi NE 5.8 mph - 0.00 in   Clear
8:55 PM 69.8 °F - 64.4 °F 83% 29.92 in 10.0 mi NNE 6.9 mph - 0.00 in   Clear
9:15 PM 69.8 °F - 64.4 °F 83% 29.93 in 10.0 mi North 5.8 mph - 0.00 in   Scattered Clouds
9:35 PM 69.8 °F - 64.4 °F 83% 29.94 in 10.0 mi NNE 5.8 mph - 0.00 in   Overcast
9:55 PM 69.8 °F - 64.4 °F 83% 29.95 in 9.0 mi Calm Calm - 0.00 in Rain Light Rain
10:15 PM 69.8 °F - 64.4 °F 83% 29.95 in 8.0 mi North 3.5 mph - 0.00 in   Light Drizzle
10:55 PM 68.0 °F - 64.4 °F 88% 29.97 in 6.0 mi North 5.8 mph - 0.00 in Rain Light Rain
11:15 PM 68.0 °F - 64.4 °F 88% 29.96 in 9.0 mi NNE 6.9 mph - 0.00 in   Mostly Cloudy
11:35 PM 66.2 °F - 64.4 °F 94% 29.95 in 9.0 mi North 4.6 mph - 0.00 in   Scattered Clouds