Rapid City, SD

9:04 AM MST on January 16, 2017 (GMT -0700)
Rapid City Regional

Weather History for KRAP - December, 2012

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Sunday, December 9, 2012

  Actual Average Record
Temperature  
Mean Temperature 7 °F 25 °F  
Max Temperature 15 °F 37 °F 70 °F (1957)
Min Temperature -1 °F 14 °F -19 °F (1972)
Degree Days  
Heating Degree Days 58 40  
Month to date heating degree days 261 347  
Since 1 July heating degree days 1772 2022  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 937 636  
Moisture  
Dew Point -1 °F    
Average Humidity 69    
Maximum Humidity 87    
Minimum Humidity 51    
Precipitation  
Precipitation T in 0.01 in 0.24 in (1989)
Month to date precipitation 0.08 0.11  
Year to date precipitation 11.24 15.98  
Snow  
Snow T in 0.20 in 2.80 in (1989)
Month to date snowfall 1.1 1.6  
Since 1 July snowfall 5.4 9.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.31 in    
Wind  
Wind Speed 18 mph (North)    
Max Wind Speed 43 mph    
Max Gust Speed 53 mph    
Visibility 8 miles    
Events Snow    
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. 09, 2012 Rise Set
Actual Time 7:15 AM MST 4:13 PM MST
Civil Twilight 6:42 AM MST 4:46 PM MST
Nautical Twilight 6:06 AM MST 5:23 PM MST
Astronomical Twilight 5:31 AM MST 5:58 PM MST
Moon 2:44 AM MST (12/9) 1:27 PM MST (12/9)
Length of Visible Light 10h 03m
Length of Day
8h 58m
Waning Crescent, 18% of the Moon is Illuminated
Dec 9
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:50 AM 10.4 °F -13.0 °F 3.2 °F 73% 30.01 in 3.0 mi NNW 34.5 mph 44.9 mph 0.00 in Snow Light Snow
12:52 AM 10.0 °F -14.3 °F 3.0 °F 73% 30.14 in 3.0 mi NNW 38.0 mph 49.5 mph 0.00 in Snow Light Snow
1:47 AM 8.6 °F -15.7 °F 1.4 °F 73% 30.04 in 4.0 mi NNW 35.7 mph 47.2 mph 0.00 in   Overcast
1:52 AM 9.0 °F -15.5 °F 1.9 °F 73% 30.16 in 5.0 mi NNW 36.8 mph 48.3 mph 0.00 in   Overcast
2:34 AM 8.6 °F -16.0 °F 1.4 °F 73% 30.05 in 5.0 mi NNW 36.8 mph 48.3 mph 0.00 in   Overcast
2:52 AM 8.1 °F -15.9 °F 1.0 °F 73% 30.20 in 7.0 mi NNW 33.4 mph 48.3 mph 0.00 in   Overcast
3:31 AM 8.6 °F -15.1 °F 1.4 °F 73% 30.08 in 6.0 mi NNW 33.4 mph 46.0 mph 0.00 in   Overcast
3:52 AM 8.1 °F -15.9 °F 1.0 °F 73% 30.25 in 5.0 mi NNW 33.4 mph 44.9 mph 0.00 in   Overcast
4:52 AM 7.0 °F -17.0 °F 1.0 °F 77% 30.28 in 3.0 mi NNW 32.2 mph 41.4 mph 0.00 in Snow Light Snow
5:52 AM 7.0 °F -16.3 °F -0.0 °F 73% 30.34 in 10.0 mi NNW 29.9 mph 40.3 mph 0.00 in   Overcast
6:01 AM 8.6 °F -14.1 °F -0.4 °F 67% 30.19 in 10.0 mi NNW 29.9 mph 41.4 mph N/A   Overcast
6:31 AM 6.8 °F -15.9 °F -0.4 °F 72% 30.21 in 10.0 mi NNW 27.6 mph 40.3 mph N/A   Mostly Cloudy
6:52 AM 7.0 °F -16.0 °F -2.9 °F 64% 30.40 in 10.0 mi NNW 28.8 mph 39.1 mph N/A   Scattered Clouds
7:52 AM 6.1 °F -16.8 °F -2.9 °F 67% 30.44 in 10.0 mi NNW 27.6 mph 35.7 mph N/A   Mostly Cloudy
8:52 AM 7.0 °F -15.6 °F -2.9 °F 64% 30.46 in 10.0 mi NNW 27.6 mph 33.4 mph N/A   Clear
9:52 AM 10.9 °F -9.2 °F -0.0 °F 61% 30.49 in 10.0 mi NNW 24.2 mph 32.2 mph N/A   Clear
10:52 AM 12.0 °F -6.9 °F 1.0 °F 61% 30.50 in 10.0 mi North 21.9 mph 29.9 mph N/A   Clear
11:52 AM 14.0 °F -2.5 °F 1.0 °F 56% 30.48 in 10.0 mi North 17.3 mph - N/A   Clear
12:52 PM 14.0 °F -2.0 °F -0.9 °F 52% 30.46 in 10.0 mi North 16.1 mph 24.2 mph N/A   Clear
1:52 PM 14.0 °F -1.4 °F -2.0 °F 49% 30.44 in 10.0 mi North 15.0 mph - N/A   Clear
2:52 PM 14.0 °F 2.9 °F -0.9 °F 52% 30.44 in 10.0 mi NNE 8.1 mph - N/A   Clear
3:52 PM 10.9 °F 4.7 °F -2.0 °F 56% 30.43 in 10.0 mi ENE 3.5 mph - N/A   Clear
4:52 PM 7.0 °F -1.7 °F -2.0 °F 67% 30.43 in 10.0 mi SSE 4.6 mph - N/A   Clear
5:52 PM 3.9 °F -6.9 °F -2.0 °F 76% 30.41 in 10.0 mi SSE 5.8 mph - N/A   Clear
6:52 PM 1.9 °F -7.6 °F -2.9 °F 80% 30.38 in 10.0 mi South 4.6 mph - N/A   Clear
7:52 PM 1.9 °F -9.2 °F -2.9 °F 80% 30.35 in 10.0 mi SSE 5.8 mph - N/A   Clear
8:52 PM 3.0 °F -6.4 °F -2.9 °F 76% 30.30 in 10.0 mi SE 4.6 mph - N/A   Clear
9:52 PM 1.0 °F -10.3 °F -2.9 °F 83% 30.24 in 10.0 mi SE 5.8 mph - N/A   Clear
10:52 PM 1.0 °F -8.7 °F -4.0 °F 79% 30.19 in 10.0 mi SE 4.6 mph - N/A   Clear
11:52 PM -0.9 °F -11.0 °F -5.1 °F 83% 30.15 in 10.0 mi ESE 4.6 mph - N/A   Clear