Weather History for Rapid City, SD

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Monday, January 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 12 °F 25 °F  
Max Temperature 19 °F 37 °F 64 °F (1989)
Min Temperature 5 °F 13 °F -25 °F (1949)
Degree Days  
Heating Degree Days 53 40  
Month to date heating degree days 827 842  
Since 1 July heating degree days 3574 3758  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 8 °F    
Average Humidity 83    
Maximum Humidity 92    
Minimum Humidity 73    
Precipitation  
Precipitation 0.01 in 0.01 in 0.28 in (1986)
Month to date precipitation 0.23 0.21  
Year to date precipitation 0.23 0.21  
Snow  
Snow 0.70 in 0.20 in - ()
Month to date snowfall 4.2 3.0  
Since 1 July snowfall 13.8 16.2  
Snow Depth T in    
Sea Level Pressure  
Sea Level Pressure 30.29 in    
Wind  
Wind Speed 6 mph (East)    
Max Wind Speed 14 mph    
Max Gust Speed 16 mph    
Visibility 8 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 21, 2013 Rise Set
Actual Time 7:19 AM MST 4:47 PM MST
Civil Twilight 6:48 AM MST 5:19 PM MST
Nautical Twilight 6:12 AM MST 5:54 PM MST
Astronomical Twilight 5:38 AM MST 6:29 PM MST
Moon 12:28 PM MST (1/21) 2:50 AM MST (1/21)
Length of Visible Light 10h 31m
Length of Day
9h 28m
Waxing Gibbous, 75% of the Moon is Illuminated
Jan 21
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New
Feb 17
First 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 14.0 °F 1.2 °F 6.1 °F 71% 30.44 in 10.0 mi NNW 10.4 mph - N/A   Overcast
1:52 AM 14.0 °F 2.9 °F 6.1 °F 71% 30.44 in 4.0 mi North 8.1 mph - 0.00 in Snow Light Snow
2:34 AM 12.2 °F 4.3 °F 6.8 °F 79% 30.25 in 2.5 mi North 4.6 mph - 0.00 in Snow Light Snow
2:52 AM 12.0 °F 1.5 °F 7.0 °F 80% 30.42 in 3.0 mi NNE 6.9 mph - 0.01 in Snow Light Snow
3:22 AM 10.4 °F 2.2 °F 6.8 °F 85% 30.24 in 5.0 mi North 4.6 mph - 0.00 in Snow Light Snow
3:30 AM 10.4 °F - 6.8 °F 85% 30.24 in 6.0 mi Calm Calm - 0.00 in Snow Light Snow
3:41 AM 10.4 °F 2.2 °F 6.8 °F 85% 30.23 in 7.0 mi North 4.6 mph - 0.00 in Snow Light Snow
3:52 AM 10.0 °F 1.8 °F 6.1 °F 84% 30.40 in 9.0 mi NNE 4.6 mph - 0.00 in   Overcast
4:26 AM 10.4 °F -0.4 °F 6.8 °F 85% 30.23 in 10.0 mi North 6.9 mph - N/A   Overcast
4:52 AM 12.0 °F 1.5 °F 7.0 °F 80% 30.40 in 10.0 mi NNE 6.9 mph - N/A   Overcast
5:52 AM 10.9 °F 1.4 °F 7.0 °F 84% 30.40 in 4.0 mi NNE 5.8 mph - 0.00 in Snow Light Snow
6:52 AM 12.0 °F - 7.0 °F 80% 30.38 in 5.0 mi Calm Calm - 0.00 in Snow Light Snow
7:52 AM 10.9 °F 1.4 °F 7.0 °F 84% 30.42 in 10.0 mi NNE 5.8 mph - 0.00 in   Overcast
8:52 AM 12.0 °F - 7.0 °F 80% 30.42 in 7.0 mi Calm Calm - 0.00 in Snow Light Snow
9:52 AM 14.0 °F - 7.0 °F 74% 30.42 in 3.0 mi Calm Calm - 0.00 in Snow Light Snow
10:52 AM 15.1 °F 7.7 °F 8.1 °F 74% 30.41 in 2.5 mi North 4.6 mph - 0.00 in Snow Light Snow
11:20 AM 15.8 °F 8.6 °F 8.6 °F 73% 30.21 in 5.0 mi North 4.6 mph - 0.00 in Snow Light Snow
11:52 AM 16.0 °F 8.8 °F 9.0 °F 74% 30.37 in 7.0 mi North 4.6 mph - 0.00 in Snow Light Snow
12:08 PM 17.6 °F 10.7 °F 10.4 °F 73% 30.18 in 5.0 mi NNE 4.6 mph - 0.00 in Snow Light Snow
12:32 PM 17.6 °F - 10.4 °F 73% 30.17 in 4.0 mi Calm Calm - 0.00 in Snow Light Snow
12:52 PM 16.0 °F 10.4 °F 10.0 °F 77% 30.33 in 4.0 mi South 3.5 mph - 0.00 in Snow Light Snow
1:24 PM 17.6 °F 8.2 °F 10.4 °F 73% 30.13 in 2.5 mi SSE 6.9 mph - 0.00 in Snow Light Snow
1:34 PM 17.6 °F 9.3 °F 10.4 °F 73% 30.14 in 4.0 mi SSE 5.8 mph - 0.00 in Snow Light Snow
1:52 PM 18.0 °F 8.7 °F 10.9 °F 74% 30.30 in 8.0 mi South 6.9 mph - 0.00 in   Overcast
2:52 PM 18.0 °F - 10.9 °F 74% 30.31 in 10.0 mi Calm Calm - N/A   Overcast
3:52 PM 18.0 °F 9.8 °F 10.9 °F 74% 30.30 in 10.0 mi ESE 5.8 mph - N/A   Overcast
4:52 PM 16.0 °F 5.3 °F 10.9 °F 81% 30.28 in 10.0 mi ESE 8.1 mph - 0.00 in   Overcast
5:14 PM 14.0 °F 0.5 °F 10.4 °F 86% 30.09 in 10.0 mi ESE 11.5 mph - N/A   Scattered Clouds
5:41 PM 12.2 °F 0.7 °F 10.4 °F 92% 30.09 in 10.0 mi ESE 8.1 mph - N/A   Mostly Cloudy
5:52 PM 12.9 °F 1.6 °F 10.0 °F 88% 30.30 in 10.0 mi ESE 8.1 mph - N/A   Overcast
6:52 PM 10.9 °F 0.2 °F 8.1 °F 88% 30.30 in 10.0 mi East 6.9 mph - N/A   Overcast
7:52 PM 10.9 °F -1.8 °F 8.1 °F 88% 30.28 in 10.0 mi SE 9.2 mph - N/A   Overcast
8:52 PM 10.9 °F -1.8 °F 8.1 °F 88% 30.28 in 10.0 mi ESE 9.2 mph - N/A   Overcast
9:00 PM 10.4 °F -1.5 °F 8.6 °F 92% 30.09 in 10.0 mi ESE 8.1 mph - N/A   Overcast
9:52 PM 10.0 °F -1.9 °F 7.0 °F 87% 30.27 in 10.0 mi SE 8.1 mph - N/A   Overcast
10:14 PM 8.6 °F 0.1 °F 6.8 °F 92% 30.08 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
10:27 PM 6.8 °F -4.8 °F 5.0 °F 92% 30.08 in 10.0 mi SSE 6.9 mph - N/A   Scattered Clouds
10:52 PM 6.1 °F -4.3 °F 3.0 °F 87% 30.27 in 10.0 mi SE 5.8 mph - N/A   Clear
11:52 PM 5.0 °F -2.1 °F 1.9 °F 87% 30.27 in 10.0 mi East 3.5 mph - N/A   Clear