, SD

(GMT )
Rapid City

Weather History for KRAP - December, 2011

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Thursday, December 22, 2011

  Actual Average Record
Temperature  
Mean Temperature 17 °F 24 °F  
Max Temperature 27 °F 36 °F 64 °F (1972)
Min Temperature 7 °F 12 °F -29 °F (1989)
Degree Days  
Heating Degree Days 48 41  
Month to date heating degree days 865 875  
Since 1 July heating degree days 2407 2550  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 699 636  
Moisture  
Dew Point 11 °F    
Average Humidity 81    
Maximum Humidity 100    
Minimum Humidity 62    
Precipitation  
Precipitation 0.00 in 0.02 in 0.12 in (1999)
Month to date precipitation 0.21 0.29  
Year to date precipitation 19.34 16.16  
Snow  
Snow 0.00 in 0.20 in 2.60 in (1999)
Month to date snowfall 2.8 3.9  
Since 1 July snowfall 17.4 11.7  
Snow Depth 1.00 in    
Sea Level Pressure  
Sea Level Pressure 30.42 in    
Wind  
Wind Speed 6 mph (West)    
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

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Dec. 22, 2011 Rise Set
Actual Time 7:24 AM MST 4:17 PM MST
Civil Twilight 6:51 AM MST 4:50 PM MST
Nautical Twilight 6:14 AM MST 5:27 PM MST
Astronomical Twilight 5:39 AM MST 6:02 PM MST
Moon 5:10 AM MST (12/22) 2:29 PM MST (12/22)
Length of Visible Light 9h 59m
Length of Day
8h 52m
Waning Crescent, 5% of the Moon is Illuminated
Dec 22
Waning Crescent
Dec 24
New
Dec 31
First Quarter
Jan 9
Full
Jan 16
Last Quarter

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 18.0 °F 4.2 °F 12.9 °F 81% 30.40 in 10.0 mi NNW 13.8 mph - N/A   Clear
1:52 AM 18.0 °F 3.6 °F 12.9 °F 81% 30.43 in 10.0 mi NNW 15.0 mph - N/A   Clear
2:52 AM 15.1 °F 1.1 °F 10.0 °F 80% 30.45 in 10.0 mi NNW 12.7 mph - N/A   Clear
3:52 AM 14.0 °F 0.5 °F 8.1 °F 77% 30.47 in 10.0 mi NNW 11.5 mph - N/A   Clear
4:52 AM 12.0 °F -0.4 °F 6.1 °F 77% 30.49 in 10.0 mi NW 9.2 mph - N/A   Clear
5:52 AM 12.9 °F 0.7 °F 6.1 °F 74% 30.50 in 10.0 mi WNW 9.2 mph - N/A   Clear
6:52 AM 10.4 °F 4.0 °F 3.2 °F 73% 30.36 in 10.0 mi West 3.5 mph - N/A   Clear
7:52 AM 10.9 °F 0.2 °F 3.9 °F 73% 30.52 in 10.0 mi WNW 6.9 mph - N/A   Clear
8:52 AM 17.1 °F 11.7 °F 8.1 °F 68% 30.51 in 10.0 mi West 3.5 mph - N/A   Clear
9:52 AM 19.9 °F - 10.9 °F 68% 30.52 in 10.0 mi Calm Calm - N/A   Clear
10:52 AM 21.9 °F 15.7 °F 14.0 °F 72% 30.50 in 10.0 mi South 4.6 mph - N/A   Clear
11:52 AM 25.0 °F 17.1 °F 14.0 °F 63% 30.48 in 10.0 mi South 6.9 mph - N/A   Clear
12:52 PM 26.1 °F 19.4 °F 17.1 °F 69% 30.45 in 10.0 mi South 5.8 mph - N/A   Clear
1:52 PM 27.0 °F 20.5 °F 19.0 °F 72% 30.43 in 10.0 mi South 5.8 mph - N/A   Clear
2:52 PM 25.0 °F 15.5 °F 19.0 °F 78% 30.43 in 10.0 mi SSW 9.2 mph - N/A   Clear
3:52 PM 21.9 °F 13.4 °F 18.0 °F 85% 30.43 in 10.0 mi South 6.9 mph - N/A   Clear
4:52 PM 17.1 °F - 14.0 °F 88% 30.44 in 10.0 mi Calm Calm - N/A   Clear
5:52 PM 16.0 °F - 12.9 °F 88% 30.42 in 10.0 mi Calm Calm - N/A   Clear
6:52 PM 14.0 °F - 10.4 °F 86% 30.21 in 10.0 mi Calm Calm - N/A   Clear
7:52 PM 8.6 °F - 8.6 °F 100% 30.20 in 10.0 mi Calm Calm - N/A   Clear
8:52 PM 12.9 °F - 9.0 °F 84% 30.35 in 10.0 mi Calm Calm - N/A   Clear
9:52 PM 10.9 °F - 7.0 °F 84% 30.35 in 10.0 mi Calm Calm - N/A   Clear
10:52 PM 8.1 °F 1.4 °F 3.0 °F 80% 30.34 in 10.0 mi NNW 3.5 mph - N/A   Clear
11:52 PM 15.1 °F 7.7 °F 6.1 °F 68% 30.31 in 10.0 mi WNW 4.6 mph - N/A   Clear