Weather History for Sumter, SC

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 40 °F -  
Max Temperature 55 °F 56 °F 66 °F (2010)
Min Temperature 24 °F 38 °F 24 °F (2012)
Degree Days  
Heating Degree Days 26    
Moisture  
Dew Point 33 °F    
Average Humidity 72    
Maximum Humidity 100    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.32 in    
Wind  
Wind Speed 3 mph (SW)    
Max Wind Speed 13 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:26 AM EST 5:22 PM EST
Civil Twilight 6:59 AM EST 5:50 PM EST
Nautical Twilight 6:27 AM EST 6:21 PM EST
Astronomical Twilight 5:57 AM EST 6:52 PM EST
Moon 8:41 PM EST (12/31) 9:16 AM EST (12/31)
Length of Visible Light 10h 51m
Length of Day
9h 56m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

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 26.6 °F - 24.8 °F 93% 30.41 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 26.6 °F - 24.8 °F 93% 30.42 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 26.6 °F - 24.8 °F 93% 30.41 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 26.6 °F - 24.8 °F 93% 30.40 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 24.8 °F - 24.8 °F 100% 30.39 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 24.8 °F - 24.8 °F 100% 30.39 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 24.8 °F - 24.8 °F 100% 30.39 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 24.8 °F - 24.8 °F 100% 30.40 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 24.8 °F - 24.8 °F 100% 30.40 in 9.0 mi Calm Calm - N/A   Clear
3:55 AM 24.8 °F - 24.8 °F 100% 30.40 in 9.0 mi Calm Calm - N/A   Clear
4:15 AM 24.8 °F - 24.8 °F 100% 30.40 in 9.0 mi Calm Calm - N/A   Clear
4:35 AM 24.8 °F - 24.8 °F 100% 30.41 in 8.0 mi Calm Calm - N/A   Clear
4:55 AM 24.8 °F - 24.8 °F 100% 30.40 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 24.8 °F - 24.8 °F 100% 30.40 in 9.0 mi Calm Calm - N/A   Clear
5:35 AM 24.8 °F - 24.8 °F 100% 30.40 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 24.8 °F - 24.8 °F 100% 30.41 in 10.0 mi Calm Calm - N/A   Clear
6:15 AM 24.8 °F - 24.8 °F 100% 30.40 in 10.0 mi Calm Calm - N/A   Clear
6:35 AM 24.8 °F - 24.8 °F 100% 30.41 in 10.0 mi Calm Calm - N/A   Clear
7:15 AM 26.6 °F - 26.6 °F 100% 30.41 in 10.0 mi Calm Calm - N/A   Clear
7:35 AM 26.6 °F - 26.6 °F 100% 30.40 in 10.0 mi Calm Calm - N/A   Clear
7:55 AM 28.4 °F - 28.4 °F 100% 30.41 in 9.0 mi Calm Calm - N/A   Clear
8:35 AM 32.0 °F - 28.4 °F 87% 30.44 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 39.2 °F 35.0 °F 30.2 °F 70% 30.44 in 10.0 mi SW 5.8 mph - N/A   Clear
9:35 AM 41.0 °F 35.8 °F 30.2 °F 65% 30.44 in 10.0 mi WSW 8.1 mph - N/A   Clear
9:55 AM 42.8 °F 39.3 °F 30.2 °F 61% 30.43 in 10.0 mi SW 5.8 mph - N/A   Clear
10:15 AM 44.6 °F 40.2 °F 28.4 °F 53% 30.41 in 10.0 mi SW 8.1 mph - N/A   Clear
10:35 AM 46.4 °F 42.9 °F 28.4 °F 50% 30.41 in 10.0 mi SSW 6.9 mph - N/A   Clear
10:55 AM 48.2 °F - 26.6 °F 43% 30.39 in 10.0 mi SW 6.9 mph - N/A   Clear
11:15 AM 50.0 °F - 26.6 °F 40% 30.39 in 10.0 mi SW 9.2 mph - N/A   Clear
11:35 AM 50.0 °F - 24.8 °F 37% 30.40 in 10.0 mi West 5.8 mph - N/A   Clear
11:55 AM 51.8 °F - 24.8 °F 35% 30.38 in 10.0 mi West 4.6 mph - N/A   Clear
12:15 PM 53.6 °F - 24.8 °F 33% 30.36 in 10.0 mi WSW 9.2 mph - N/A   Clear
12:35 PM 53.6 °F - 26.6 °F 35% 30.32 in 10.0 mi WSW 12.7 mph 17.3 mph N/A   Clear
12:55 PM 53.6 °F - 28.4 °F 38% 30.30 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
1:15 PM 53.6 °F - 32.0 °F 44% 30.30 in 10.0 mi SW 11.5 mph 18.4 mph N/A   Mostly Cloudy
1:35 PM 53.6 °F - 35.6 °F 51% 30.30 in 10.0 mi West 6.9 mph - N/A   Overcast
1:55 PM 53.6 °F - 35.6 °F 51% 30.30 in 10.0 mi WSW 9.2 mph - N/A   Overcast
2:15 PM 55.4 °F - 35.6 °F 47% 30.28 in 10.0 mi WSW 5.8 mph - N/A   Overcast
2:35 PM 55.4 °F - 35.6 °F 47% 30.27 in 10.0 mi WSW 10.4 mph - N/A   Scattered Clouds
2:55 PM 55.4 °F - 35.6 °F 47% 30.27 in 10.0 mi South 8.1 mph - N/A   Clear
3:15 PM 55.4 °F - 37.4 °F 51% 30.26 in 10.0 mi SW 6.9 mph - N/A   Clear
3:35 PM 55.4 °F - 37.4 °F 51% 30.25 in 10.0 mi SSW 10.4 mph - N/A   Clear
3:55 PM 55.4 °F - 37.4 °F 51% 30.24 in 10.0 mi SSW 8.1 mph - N/A   Clear
4:15 PM 55.4 °F - 37.4 °F 51% 30.25 in 10.0 mi SW 5.8 mph - N/A   Clear
4:35 PM 55.4 °F - 39.2 °F 54% 30.24 in 10.0 mi SSW 5.8 mph - N/A   Clear
4:55 PM 53.6 °F - 39.2 °F 58% 30.25 in 10.0 mi SSW 5.8 mph - N/A   Clear
5:15 PM 51.8 °F - 39.2 °F 62% 30.24 in 10.0 mi South 4.6 mph - N/A   Clear
5:35 PM 50.0 °F - 39.2 °F 66% 30.25 in 10.0 mi South 3.5 mph - N/A   Clear
5:55 PM 46.4 °F - 39.2 °F 76% 30.25 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:15 PM 46.4 °F - 39.2 °F 76% 30.25 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:35 PM 46.4 °F 45.2 °F 41.0 °F 81% 30.25 in 10.0 mi South 3.5 mph - N/A   Overcast
6:55 PM 48.2 °F - 41.0 °F 76% 30.24 in 10.0 mi South 3.5 mph - N/A   Overcast
7:15 PM 50.0 °F - 41.0 °F 71% 30.24 in 10.0 mi South 3.5 mph - N/A   Overcast
7:35 PM 51.8 °F - 41.0 °F 67% 30.24 in 10.0 mi SSW 4.6 mph - N/A   Overcast
7:55 PM 53.6 °F - 41.0 °F 62% 30.23 in 10.0 mi SSW 5.8 mph - N/A   Overcast
8:15 PM 53.6 °F - 41.0 °F 62% 30.23 in 10.0 mi SSW 4.6 mph - N/A   Overcast
8:35 PM 53.6 °F - 41.0 °F 62% 30.23 in 10.0 mi SSW 5.8 mph - N/A   Overcast
8:55 PM 53.6 °F - 41.0 °F 62% 30.22 in 10.0 mi SSW 5.8 mph - N/A   Overcast
9:15 PM 51.8 °F - 41.0 °F 67% 30.21 in 10.0 mi SSW 4.6 mph - N/A   Overcast
9:35 PM 51.8 °F - 41.0 °F 67% 30.22 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
10:15 PM 51.8 °F - 42.8 °F 71% 30.20 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
10:35 PM 51.8 °F - 42.8 °F 71% 30.20 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
10:55 PM 51.8 °F - 42.8 °F 71% 30.20 in 10.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
11:15 PM 50.0 °F - 42.8 °F 76% 30.19 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
11:35 PM 50.0 °F - 42.8 °F 76% 30.18 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:55 PM 50.0 °F - 42.8 °F 76% 30.18 in 10.0 mi Calm Calm - N/A   Scattered Clouds