Weather History for Rapid City, SD

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Monday, May 14, 2012

  Actual Average Record
Temperature  
Mean Temperature 65 °F 54 °F  
Max Temperature 85 °F 67 °F 89 °F (1976)
Min Temperature 44 °F 42 °F 28 °F (1973)
Degree Days  
Heating Degree Days 0 11  
Month to date heating degree days 144 181  
Since 1 July heating degree days 5976 6910  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 9 2  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 29 °F    
Average Humidity 31    
Maximum Humidity 49    
Minimum Humidity 13    
Precipitation  
Precipitation 0.00 in 0.11 in 3.21 in (1965)
Month to date precipitation 0.61 1.38  
Year to date precipitation 4.43 4.85  
Snow  
Snow 0.00 in 0.10 in - ()
Month to date snowfall 0.0 1.0  
Since 1 July snowfall 24.7 41.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 8 mph (NW)    
Max Wind Speed 20 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

May. 14, 2012 Rise Set
Actual Time 5:26 AM MDT 8:11 PM MDT
Civil Twilight 4:53 AM MDT 8:44 PM MDT
Nautical Twilight 4:11 AM MDT 9:27 PM MDT
Astronomical Twilight 3:22 AM MDT 10:16 PM MDT
Moon 2:14 AM MDT (5/14) 2:22 PM MDT (5/14)
Length of Visible Light 15h 51m
Length of Day
14h 44m
Waning Crescent, 32% of the Moon is Illuminated
May 14
Waning Crescent
May 20
New
May 28
First Quarter
Jun 4
Full
Jun 11
Last Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 57.0 °F - 27.0 °F 32% 30.09 in 10.0 mi West 5.8 mph - N/A   Clear
1:52 AM 53.1 °F - 28.0 °F 38% 30.08 in 10.0 mi WSW 4.6 mph - N/A   Clear
2:52 AM 46.0 °F 43.1 °F 28.9 °F 51% 30.08 in 10.0 mi WNW 5.8 mph - N/A   Clear
3:52 AM 52.0 °F - 26.1 °F 37% 30.07 in 10.0 mi West 3.5 mph - N/A   Clear
4:52 AM 46.9 °F - 27.0 °F 46% 30.07 in 10.0 mi WNW 5.8 mph - N/A   Clear
5:52 AM 48.9 °F - 28.0 °F 44% 30.07 in 10.0 mi WNW 8.1 mph - N/A   Clear
6:52 AM 57.9 °F - 32.0 °F 37% 30.07 in 10.0 mi WNW 8.1 mph - N/A   Clear
7:52 AM 66.0 °F - 35.1 °F 32% 30.07 in 10.0 mi WNW 3.5 mph - N/A   Clear
8:52 AM 72.0 °F - 32.0 °F 23% 30.06 in 10.0 mi West 6.9 mph - N/A   Clear
9:52 AM 77.0 °F - 28.9 °F 17% 30.05 in 10.0 mi NE 4.6 mph - N/A   Clear
10:52 AM 79.0 °F - 24.1 °F 13% 30.04 in 10.0 mi Variable 5.8 mph - N/A   Clear
11:52 AM 81.0 °F - 25.0 °F 13% 30.03 in 10.0 mi NNE 3.5 mph - N/A   Clear
12:52 PM 82.0 °F - 28.0 °F 14% 30.00 in 10.0 mi North 8.1 mph - N/A   Clear
1:52 PM 82.4 °F - 26.6 °F 13% 30.05 in 10.0 mi Variable 3.5 mph - N/A   Clear
2:52 PM 82.9 °F - 30.0 °F 15% 29.99 in 10.0 mi East 6.9 mph - N/A   Clear
3:52 PM 84.0 °F - 28.9 °F 14% 29.96 in 10.0 mi WNW 5.8 mph - N/A   Clear
4:52 PM 82.9 °F - 27.0 °F 13% 29.97 in 10.0 mi North 11.5 mph - N/A   Clear
5:52 PM 82.0 °F - 28.9 °F 14% 29.96 in 10.0 mi North 17.3 mph 25.3 mph N/A   Clear
6:52 PM 77.0 °F - 32.0 °F 19% 29.95 in 10.0 mi North 12.7 mph - N/A   Clear
7:52 PM 70.0 °F - 34.0 °F 27% 29.97 in 10.0 mi NNW 11.5 mph - N/A   Clear
8:52 PM 62.1 °F - 32.0 °F 32% 29.99 in 10.0 mi NNW 12.7 mph - N/A   Clear
9:52 PM 57.2 °F - 33.8 °F 41% 30.07 in 10.0 mi NW 9.2 mph - N/A   Clear
10:52 PM 64.0 °F - 30.0 °F 28% 30.02 in 10.0 mi North 13.8 mph - N/A   Clear
11:52 PM 59.0 °F - 32.0 °F 36% 30.04 in 10.0 mi NNW 15.0 mph - N/A   Clear