, SD

(GMT )
Rapid City

Weather History for KRAP - December, 2012

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Monday, December 17, 2012

  Actual Average Record
Temperature  
Mean Temperature 27 °F 24 °F  
Max Temperature 41 °F 36 °F 69 °F (1998)
Min Temperature 12 °F 12 °F -23 °F (1964)
Degree Days  
Heating Degree Days 38 41  
Month to date heating degree days 547 670  
Since 1 July heating degree days 2058 2345  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 937 636  
Moisture  
Dew Point 16 °F    
Average Humidity 62    
Maximum Humidity 84    
Minimum Humidity 40    
Precipitation  
Precipitation T in 0.02 in 0.22 in (1985)
Month to date precipitation 0.08 0.22  
Year to date precipitation 11.24 16.09  
Snow  
Snow 0.00 in 0.10 in 3.10 in (1985)
Month to date snowfall 1.1 3.0  
Since 1 July snowfall 5.4 10.8  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.60 in    
Wind  
Wind Speed 6 mph (NE)    
Max Wind Speed 18 mph    
Max Gust Speed 22 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 17, 2012 Rise Set
Actual Time 7:21 AM MST 4:15 PM MST
Civil Twilight 6:48 AM MST 4:48 PM MST
Nautical Twilight 6:12 AM MST 5:25 PM MST
Astronomical Twilight 5:37 AM MST 6:00 PM MST
Moon 10:22 AM MST (12/17) 9:49 PM MST (12/17)
Length of Visible Light 9h 59m
Length of Day
8h 53m
Waxing Crescent, 25% of the Moon is Illuminated
Dec 17
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 15.1 °F 7.7 °F 10.0 °F 80% 29.77 in 10.0 mi NW 4.6 mph - N/A   Scattered Clouds
1:52 AM 18.0 °F 11.1 °F 12.0 °F 78% 29.76 in 10.0 mi NW 4.6 mph - N/A   Clear
2:52 AM 19.9 °F 13.4 °F 12.0 °F 71% 29.75 in 10.0 mi WSW 4.6 mph - N/A   Scattered Clouds
3:52 AM 19.0 °F 12.3 °F 10.9 °F 71% 29.74 in 10.0 mi West 4.6 mph - N/A   Clear
4:52 AM 16.0 °F - 9.0 °F 74% 29.73 in 10.0 mi Calm Calm - N/A   Clear
5:52 AM 15.1 °F 6.4 °F 8.1 °F 74% 29.73 in 10.0 mi WNW 5.8 mph - N/A   Clear
6:52 AM 14.0 °F - 7.0 °F 74% 29.71 in 10.0 mi Calm Calm - N/A   Clear
7:52 AM 19.9 °F - 10.9 °F 68% 29.69 in 10.0 mi Calm Calm - N/A   Clear
8:52 AM 19.9 °F 13.4 °F 14.0 °F 78% 29.67 in 10.0 mi SE 4.6 mph - N/A   Overcast
9:52 AM 25.0 °F 18.1 °F 18.0 °F 75% 29.64 in 10.0 mi SE 5.8 mph - N/A   Overcast
10:52 AM 27.0 °F 18.0 °F 21.0 °F 78% 29.60 in 10.0 mi SE 9.2 mph - N/A   Overcast
11:52 AM 32.0 °F 24.2 °F 21.0 °F 64% 29.55 in 10.0 mi ESE 9.2 mph - N/A   Partly Cloudy
12:52 PM 36.0 °F 28.5 °F 19.9 °F 52% 29.51 in 10.0 mi ESE 10.4 mph - N/A   Mostly Cloudy
1:52 PM 39.0 °F 32.3 °F 18.0 °F 43% 29.47 in 10.0 mi South 10.4 mph - N/A   Mostly Cloudy
2:52 PM 39.0 °F 32.8 °F 19.9 °F 46% 29.45 in 10.0 mi ESE 9.2 mph - N/A   Clear
5:52 PM 27.0 °F 21.6 °F 17.1 °F 66% 29.49 in 10.0 mi ENE 4.6 mph - N/A   Clear
6:52 PM 28.0 °F 22.8 °F 19.0 °F 69% 29.50 in 10.0 mi NNE 4.6 mph - N/A   Partly Cloudy
7:52 PM 28.9 °F 19.8 °F 19.0 °F 67% 29.49 in 10.0 mi NNW 10.4 mph - N/A   Overcast
8:52 PM 30.9 °F 18.7 °F 19.9 °F 64% 29.49 in 10.0 mi NNW 19.6 mph - N/A   Overcast
9:52 PM 30.0 °F 21.1 °F 21.0 °F 69% 29.49 in 10.0 mi North 10.4 mph - 0.00 in   Scattered Clouds
10:52 PM 30.9 °F - 23.0 °F 72% 29.51 in 10.0 mi Calm Calm - N/A   Overcast
11:52 PM 33.1 °F - 25.0 °F 72% 29.52 in 10.0 mi Calm Calm - N/A   Overcast