Weather History for Summerville, SC

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Tuesday, December 18, 2012

  Actual Average (KCHS) Record (KCHS)
Temperature  
Mean Temperature 54 °F 50 °F  
Max Temperature 68 °F 61 °F 80 °F (2008)
Min Temperature 39 °F 40 °F 17 °F (1943)
Degree Days  
Heating Degree Days 12 15  
Month to date heating degree days 237  
Since 1 July heating degree days 529  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 2297  
Growing Degree Days 4 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 76    
Maximum Humidity 100    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in 0.10 in 3.18 in (2009)
Month to date precipitation 1.71  
Year to date precipitation 49.63  
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 5 mph (WSW)    
Max Wind Speed 17 mph    
Max Gust Speed 28 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 18, 2012 Rise Set
Actual Time 7:18 AM EST 5:17 PM EST
Civil Twilight 6:51 AM EST 5:44 PM EST
Nautical Twilight 6:20 AM EST 6:15 PM EST
Astronomical Twilight 5:50 AM EST 6:45 PM EST
Moon 11:14 AM EST (12/18) 11:23 PM EST (12/18)
Length of Visible Light 10h 53m
Length of Day
9h 58m
Waxing Crescent, 34% of the Moon is Illuminated
Dec 18
Waxing Crescent
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 59.0 °F - 59.0 °F 100% 29.77 in 10.0 mi SSW 5.8 mph - N/A   Overcast
12:35 AM 59.0 °F - 59.0 °F 100% 29.77 in 10.0 mi SSW 6.9 mph - N/A   Overcast
12:55 AM 60.8 °F - 60.8 °F 100% 29.77 in 10.0 mi SSW 3.5 mph - N/A   Overcast
1:15 AM 59.0 °F - 59.0 °F 100% 29.77 in 7.0 mi SSW 3.5 mph - N/A   Overcast
1:35 AM 59.0 °F - 59.0 °F 100% 29.77 in 10.0 mi SW 3.5 mph - N/A   Overcast
1:55 AM 59.0 °F - 59.0 °F 100% 29.78 in 10.0 mi SW 3.5 mph - N/A   Overcast
2:15 AM 59.0 °F - 59.0 °F 100% 29.78 in 10.0 mi SW 5.8 mph - N/A   Overcast
2:35 AM 59.0 °F - 59.0 °F 100% 29.78 in 10.0 mi WSW 4.6 mph - N/A   Overcast
2:55 AM 59.0 °F - 59.0 °F 100% 29.78 in 10.0 mi SW 3.5 mph - N/A   Overcast
3:15 AM 59.0 °F - 59.0 °F 100% 29.78 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:35 AM 59.0 °F - 59.0 °F 100% 29.77 in 10.0 mi South 3.5 mph - N/A   Clear
3:55 AM 59.0 °F - 59.0 °F 100% 29.76 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 57.2 °F - 57.2 °F 100% 29.77 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:35 AM 55.4 °F - 55.4 °F 100% 29.78 in 7.0 mi SSW 3.5 mph - N/A   Overcast
4:55 AM 59.0 °F - 59.0 °F 100% 29.78 in 10.0 mi SSW 3.5 mph - N/A   Overcast
5:15 AM 59.0 °F - 59.0 °F 100% 29.78 in 10.0 mi SW 3.5 mph - N/A   Overcast
5:35 AM 57.2 °F - 57.2 °F 100% 29.78 in 10.0 mi Calm Calm - N/A   Overcast
5:55 AM 57.2 °F - 57.2 °F 100% 29.78 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:15 AM 55.4 °F - 55.4 °F 100% 29.78 in 3.0 mi Calm Calm - N/A   Scattered Clouds
6:35 AM 55.4 °F - 55.4 °F 100% 29.79 in 1.2 mi Calm Calm - N/A   Mostly Cloudy
6:55 AM 55.4 °F - 55.4 °F 100% 29.80 in 7.0 mi SW 3.5 mph - N/A   Overcast
7:15 AM 55.4 °F - 55.4 °F 100% 29.80 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:35 AM 55.4 °F - 55.4 °F 100% 29.81 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
7:55 AM 57.2 °F - 57.2 °F 100% 29.82 in 10.0 mi WSW 6.9 mph - N/A   Overcast
8:15 AM 57.2 °F - 57.2 °F 100% 29.82 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
8:35 AM 59.0 °F - 59.0 °F 100% 29.82 in 10.0 mi SW 5.8 mph - N/A   Scattered Clouds
8:55 AM 59.0 °F - 59.0 °F 100% 29.83 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
9:15 AM 60.8 °F - 59.0 °F 94% 29.83 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
9:35 AM 60.8 °F - 59.0 °F 94% 29.83 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
9:55 AM 60.8 °F - 57.2 °F 88% 29.84 in 10.0 mi West 11.5 mph 21.9 mph N/A   Overcast
10:15 AM 62.6 °F - 55.4 °F 77% 29.83 in 10.0 mi West 12.7 mph 18.4 mph N/A   Scattered Clouds
10:35 AM 62.6 °F - 53.6 °F 72% 29.83 in 10.0 mi WSW 8.1 mph - N/A   Clear
10:55 AM 64.4 °F - 53.6 °F 68% 29.83 in 10.0 mi SW 12.7 mph 20.7 mph N/A   Clear
11:15 AM 64.4 °F - 51.8 °F 64% 29.83 in 10.0 mi SW 9.2 mph 23.0 mph N/A   Scattered Clouds
11:35 AM 64.4 °F - 50.0 °F 59% 29.81 in 10.0 mi SW 11.5 mph 19.6 mph N/A   Clear
11:55 AM 66.2 °F - 46.4 °F 49% 29.81 in 10.0 mi WSW 11.5 mph 17.3 mph N/A   Clear
12:15 PM 66.2 °F - 46.4 °F 49% 29.81 in 10.0 mi West 13.8 mph 19.6 mph N/A   Clear
12:35 PM 68.0 °F - 44.6 °F 43% 29.81 in 10.0 mi West 11.5 mph 18.4 mph N/A   Clear
12:55 PM 66.2 °F - 42.8 °F 43% 29.81 in 10.0 mi WSW 17.3 mph 25.3 mph N/A   Clear
1:15 PM 68.0 °F - 41.0 °F 37% 29.81 in 10.0 mi West 17.3 mph 27.6 mph N/A   Clear
1:35 PM 68.0 °F - 41.0 °F 37% 29.80 in 10.0 mi West 12.7 mph 18.4 mph N/A   Clear
1:55 PM 68.0 °F - 39.2 °F 35% 29.81 in 10.0 mi WSW 12.7 mph 19.6 mph N/A   Clear
2:15 PM 68.0 °F - 39.2 °F 35% 29.81 in 10.0 mi West 15.0 mph 20.7 mph N/A   Clear
2:35 PM 68.0 °F - 37.4 °F 33% 29.82 in 10.0 mi West 15.0 mph 20.7 mph N/A   Clear
2:55 PM 66.2 °F - 37.4 °F 35% 29.84 in 10.0 mi WSW 15.0 mph 24.2 mph N/A   Clear
3:15 PM 64.4 °F - 35.6 °F 34% 29.84 in 10.0 mi West 15.0 mph 27.6 mph N/A   Clear
3:35 PM 64.4 °F - 35.6 °F 34% 29.85 in 10.0 mi West 12.7 mph 25.3 mph N/A   Clear
3:55 PM 64.4 °F - 35.6 °F 34% 29.86 in 10.0 mi West 12.7 mph 19.6 mph N/A   Clear
4:15 PM 64.4 °F - 35.6 °F 34% 29.88 in 10.0 mi West 11.5 mph 19.6 mph N/A   Clear
4:35 PM 62.6 °F - 35.6 °F 37% 29.88 in 10.0 mi West 9.2 mph 16.1 mph N/A   Clear
4:55 PM 60.8 °F - 35.6 °F 39% 29.89 in 10.0 mi West 8.1 mph - N/A   Clear
5:15 PM 60.8 °F - 35.6 °F 39% 29.91 in 10.0 mi West 8.1 mph 16.1 mph N/A   Clear
5:35 PM 59.0 °F - 33.8 °F 39% 29.92 in 10.0 mi West 8.1 mph - N/A   Clear
5:55 PM 57.2 °F - 33.8 °F 41% 29.93 in 10.0 mi West 4.6 mph - N/A   Clear
6:15 PM 55.4 °F - 33.8 °F 44% 29.93 in 10.0 mi Calm Calm - N/A   Clear
6:35 PM 50.0 °F - 39.2 °F 66% 29.94 in 10.0 mi West 3.5 mph - N/A   Clear
6:55 PM 53.6 °F - 35.6 °F 51% 29.94 in 10.0 mi West 3.5 mph - N/A   Clear
7:15 PM 51.8 °F - 37.4 °F 58% 29.95 in 10.0 mi Calm Calm - N/A   Clear
7:35 PM 46.4 °F 45.2 °F 39.2 °F 76% 29.96 in 10.0 mi SW 3.5 mph - N/A   Clear
7:55 PM 46.4 °F - 39.2 °F 76% 29.96 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 42.8 °F 41.1 °F 39.2 °F 87% 29.97 in 10.0 mi SW 3.5 mph - N/A   Clear
8:35 PM 42.8 °F - 41.0 °F 93% 29.98 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 42.8 °F - 39.2 °F 87% 29.98 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 41.0 °F 39.0 °F 39.2 °F 93% 29.99 in 10.0 mi WSW 3.5 mph - N/A   Clear
9:35 PM 42.8 °F - 39.2 °F 87% 29.99 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 42.8 °F - 41.0 °F 93% 30.00 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 42.8 °F - 37.4 °F 81% 30.01 in 10.0 mi Calm Calm - N/A   Clear
10:35 PM 41.0 °F - 37.4 °F 87% 30.01 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 41.0 °F - 37.4 °F 87% 30.01 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 39.2 °F - 37.4 °F 93% 30.01 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 39.2 °F - 37.4 °F 93% 30.01 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 39.2 °F - 37.4 °F 93% 30.01 in 10.0 mi Calm Calm - N/A   Clear