, SD

(GMT )
Rapid City

Weather History for KRAP - December, 2011

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Thursday, December 15, 2011

  Actual Average Record
Temperature  
Mean Temperature 26 °F 24 °F  
Max Temperature 36 °F 36 °F 63 °F (1952)
Min Temperature 16 °F 13 °F -22 °F (1989)
Degree Days  
Heating Degree Days 39 41  
Month to date heating degree days 625 588  
Since 1 July heating degree days 2167 2263  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 699 636  
Moisture  
Dew Point 14 °F    
Average Humidity 59    
Maximum Humidity 73    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in 0.01 in 0.21 in (2015)
Month to date precipitation 0.09 0.19  
Year to date precipitation 19.22 16.06  
Snow  
Snow 0.00 in 0.20 in 4.30 in (2015)
Month to date snowfall 2.1 2.7  
Since 1 July snowfall 16.7 10.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.26 in    
Wind  
Wind Speed 6 mph (SSE)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 15, 2011 Rise Set
Actual Time 7:20 AM MST 4:14 PM MST
Civil Twilight 6:46 AM MST 4:47 PM MST
Nautical Twilight 6:10 AM MST 5:24 PM MST
Astronomical Twilight 5:35 AM MST 5:59 PM MST
Moon 9:53 PM MST (12/15) 10:28 AM MST (12/15)
Length of Visible Light 10h 00m
Length of Day
8h 54m
Waning Gibbous, 74% of the Moon is Illuminated
Dec 15
Waning Gibbous
Dec 17
Last Quarter
Dec 24
New
Dec 31
First Quarter
Jan 9
Full

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 26.1 °F 15.6 °F 15.1 °F 63% 30.16 in 10.0 mi NNW 11.5 mph - N/A   Mostly Cloudy
1:52 AM 26.1 °F 16.2 °F 15.1 °F 63% 30.18 in 10.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
2:52 AM 21.9 °F 12.5 °F 14.0 °F 72% 30.21 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
3:52 AM 23.0 °F 11.7 °F 14.0 °F 68% 30.22 in 10.0 mi NNW 11.5 mph - N/A   Clear
4:52 AM 25.0 °F 15.5 °F 15.1 °F 66% 30.23 in 10.0 mi NNW 9.2 mph - N/A   Overcast
5:52 AM 26.1 °F 15.0 °F 16.0 °F 66% 30.24 in 10.0 mi NNW 12.7 mph - N/A   Overcast
6:52 AM 21.2 °F 10.9 °F 14.0 °F 74% 30.16 in 10.0 mi North 9.2 mph - N/A   Scattered Clouds
7:52 AM 19.0 °F - 12.9 °F 77% 30.30 in 10.0 mi Calm Calm - N/A   Clear
8:52 AM 27.0 °F - 15.1 °F 61% 30.30 in 10.0 mi Calm Calm - N/A   Clear
9:52 AM 30.0 °F - 15.1 °F 54% 30.31 in 10.0 mi Calm Calm - N/A   Clear
10:52 AM 32.0 °F 26.4 °F 14.0 °F 48% 30.30 in 10.0 mi South 5.8 mph - N/A   Clear
11:52 AM 33.8 °F 26.4 °F 15.8 °F 48% 30.18 in 10.0 mi South 9.2 mph - N/A   Clear
12:52 PM 36.0 °F 29.6 °F 15.1 °F 43% 30.27 in 10.0 mi South 8.1 mph - N/A   Clear
1:52 PM 36.0 °F 29.0 °F 15.1 °F 43% 30.25 in 10.0 mi SE 9.2 mph - N/A   Clear
2:52 PM 35.1 °F 26.9 °F 15.1 °F 44% 30.25 in 10.0 mi SSE 11.5 mph - N/A   Clear
3:52 PM 30.0 °F 23.2 °F 15.1 °F 54% 30.27 in 10.0 mi SE 6.9 mph - N/A   Clear
4:52 PM 24.1 °F 18.2 °F 12.9 °F 62% 30.28 in 10.0 mi East 4.6 mph - N/A   Clear
5:52 PM 23.0 °F - 12.9 °F 65% 30.29 in 10.0 mi Calm Calm - N/A   Clear
6:52 PM 25.0 °F 20.7 °F 14.0 °F 63% 30.30 in 10.0 mi SSW 3.5 mph - N/A   Clear
7:52 PM 23.0 °F 18.4 °F 12.9 °F 65% 30.32 in 10.0 mi South 3.5 mph - N/A   Clear
8:52 PM 23.0 °F 18.4 °F 14.0 °F 68% 30.29 in 10.0 mi South 3.5 mph - N/A   Clear
9:52 PM 21.0 °F - 12.9 °F 71% 30.27 in 10.0 mi Calm Calm - N/A   Clear
10:52 PM 19.0 °F - 12.9 °F 77% 30.27 in 10.0 mi Calm Calm - N/A   Clear
11:52 PM 17.1 °F - 12.0 °F 81% 30.28 in 10.0 mi Calm Calm - N/A   Clear