Weather History for Charleston, SC

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Monday, April 30, 2012

  Actual Average Record
Temperature  
Mean Temperature 74 °F 68 °F  
Max Temperature 83 °F 80 °F 91 °F (1981)
Min Temperature 64 °F 57 °F 41 °F (1939)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 69 88  
Since 1 July heating degree days 1408 1963  
Cooling Degree Days 9 5  
Month to date cooling degree days 137 84  
Year to date cooling degree days 247 118  
Growing Degree Days 23 (Base 50)    
Moisture  
Dew Point 66 °F    
Average Humidity 78    
Maximum Humidity 100    
Minimum Humidity 55    
Precipitation  
Precipitation 0.00 in 0.09 in 1.67 in (1996)
Month to date precipitation 1.32 2.91  
Year to date precipitation 9.74 13.29  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0 0.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.18 in    
Wind  
Wind Speed 6 mph (SE)    
Max Wind Speed 15 mph    
Max Gust Speed 20 mph    
Visibility 9 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Apr. 30, 2012 Rise Set
Actual Time 6:33 AM EDT 8:01 PM EDT
Civil Twilight 6:07 AM EDT 8:28 PM EDT
Nautical Twilight 5:35 AM EDT 8:59 PM EDT
Astronomical Twilight 5:02 AM EDT 9:32 PM EDT
Moon 2:15 PM EDT (4/30) 2:36 AM EDT (4/30)
Length of Visible Light 14h 20m
Length of Day
13h 28m
Waxing Gibbous, 63% of the Moon is Illuminated
Apr 30
Waxing Gibbous
May 5
Full
May 12
Last Quarter
May 20
New
May 28
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 71.1 °F - 66.9 °F 87% 30.17 in 10.0 mi Calm Calm - N/A   Clear
1:56 AM 70.0 °F - 66.9 °F 90% 30.15 in 10.0 mi East 4.6 mph - N/A   Clear
2:56 AM 69.1 °F - 66.9 °F 93% 30.15 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 64.9 °F - 64.9 °F 100% 30.15 in 8.0 mi Calm Calm - N/A Fog Shallow Fog
4:56 AM 64.0 °F - 63.0 °F 96% 30.15 in 7.0 mi Calm Calm - N/A Fog Shallow Fog
5:56 AM 64.9 °F - 64.0 °F 97% 30.16 in 6.0 mi Calm Calm - N/A Fog Shallow Fog
6:56 AM 64.0 °F - 64.0 °F 100% 30.18 in 7.0 mi NE 3.5 mph - N/A Fog Shallow Fog
7:56 AM 70.0 °F - 68.0 °F 93% 30.21 in 8.0 mi ENE 3.5 mph - N/A   Clear
8:56 AM 75.0 °F - 68.0 °F 79% 30.21 in 8.0 mi ESE 3.5 mph - N/A   Partly Cloudy
9:56 AM 77.0 °F - 66.9 °F 71% 30.22 in 10.0 mi ENE 8.1 mph - N/A   Mostly Cloudy
10:56 AM 79.0 °F - 64.9 °F 62% 30.22 in 10.0 mi ESE 9.2 mph - N/A   Mostly Cloudy
11:56 AM 79.0 °F - 66.0 °F 64% 30.22 in 10.0 mi SE 9.2 mph - N/A   Mostly Cloudy
12:56 PM 82.0 °F 83.8 °F 64.9 °F 56% 30.21 in 10.0 mi SE 9.2 mph - N/A   Scattered Clouds
1:56 PM 82.0 °F 84.1 °F 66.0 °F 58% 30.20 in 10.0 mi SSE 10.4 mph 17.3 mph N/A   Mostly Cloudy
2:56 PM 81.0 °F 82.7 °F 64.9 °F 58% 30.19 in 10.0 mi SE 13.8 mph - N/A   Mostly Cloudy
3:56 PM 78.1 °F - 66.0 °F 66% 30.17 in 10.0 mi SE 11.5 mph - N/A   Mostly Cloudy
4:56 PM 80.1 °F 81.7 °F 64.0 °F 58% 30.16 in 10.0 mi SSE 11.5 mph - N/A   Mostly Cloudy
5:56 PM 79.0 °F - 64.0 °F 60% 30.16 in 10.0 mi SSE 8.1 mph - N/A   Mostly Cloudy
6:56 PM 75.9 °F - 66.0 °F 71% 30.16 in 10.0 mi SSE 10.4 mph - N/A   Mostly Cloudy
7:56 PM 73.9 °F - 66.9 °F 79% 30.17 in 10.0 mi SE 8.1 mph - N/A   Mostly Cloudy
8:56 PM 73.0 °F - 68.0 °F 84% 30.18 in 10.0 mi SE 8.1 mph - N/A   Mostly Cloudy
9:56 PM 72.0 °F - 68.0 °F 87% 30.19 in 10.0 mi SE 5.8 mph - N/A   Scattered Clouds
10:56 PM 71.1 °F - 69.1 °F 93% 30.19 in 10.0 mi ESE 5.8 mph - N/A   Clear
11:56 PM 70.0 °F - 68.0 °F 93% 30.18 in 9.0 mi SE 4.6 mph - N/A   Clear