Weather History for Rapid City, SD

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Wednesday, May 13, 2009

  Actual Average Record
Temperature  
Mean Temperature 44 °F 54 °F  
Max Temperature 56 °F 67 °F 92 °F (1955)
Min Temperature 31 °F 41 °F 25 °F (1943)
Degree Days  
Heating Degree Days 21 11  
Month to date heating degree days 208 170  
Since 1 July heating degree days 7292 6899  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 2  
Moisture  
Dew Point 29 °F    
Average Humidity 55    
Maximum Humidity 85    
Minimum Humidity 24    
Precipitation  
Precipitation T in 0.11 in 0.92 in (1982)
Month to date precipitation 0.16 1.27  
Year to date precipitation 7.02 4.74  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.9  
Since 1 July snowfall 78.8 40.9  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 19 mph (NW)    
Max Wind Speed 43 mph    
Max Gust Speed 55 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 13, 2009 Rise Set
Actual Time 5:27 AM MDT 8:09 PM MDT
Civil Twilight 4:54 AM MDT 8:43 PM MDT
Nautical Twilight 4:12 AM MDT 9:25 PM MDT
Astronomical Twilight 3:24 AM MDT 10:13 PM MDT
Moon No Moon Rise 8:36 AM MDT (5/13)
Length of Visible Light 15h 48m
Length of Day
14h 41m
Waning Gibbous, 81% of the Moon is Illuminated
May 13
Waning Gibbous
May 17
Last Quarter
May 24
New
May 30
First Quarter
Jun 7
Full

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 46.9 °F - 36.0 °F 66% 29.59 in 10.0 mi NNW 17.3 mph - N/A   Clear
1:52 AM 44.1 °F 38.1 °F 35.1 °F 71% 29.62 in 10.0 mi WNW 11.5 mph - N/A   Clear
2:52 AM 45.0 °F 38.9 °F 34.0 °F 65% 29.63 in 10.0 mi NW 12.7 mph - N/A   Clear
3:52 AM 42.1 °F 37.1 °F 35.1 °F 76% 29.66 in 10.0 mi NNW 8.1 mph - N/A   Clear
4:52 AM 39.9 °F 35.1 °F 32.0 °F 73% 29.68 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
5:52 AM 39.0 °F 32.3 °F 30.0 °F 70% 29.73 in 10.0 mi WNW 10.4 mph - N/A   Clear
6:52 AM 45.0 °F 40.1 °F 30.9 °F 58% 29.74 in 10.0 mi WNW 9.2 mph - N/A   Clear
7:52 AM 48.9 °F - 21.9 °F 35% 29.76 in 10.0 mi NW 19.6 mph - N/A   Clear
8:52 AM 51.1 °F - 17.1 °F 26% 29.77 in 10.0 mi WNW 26.5 mph 33.4 mph N/A   Clear
9:52 AM 50.0 °F - 24.1 °F 36% 29.79 in 10.0 mi West 18.4 mph 32.2 mph N/A   Clear
10:52 AM 54.0 °F - 17.1 °F 23% 29.79 in 10.0 mi West 25.3 mph 39.1 mph N/A   Partly Cloudy
11:52 AM 52.0 °F - 21.0 °F 30% 29.83 in 10.0 mi WNW 29.9 mph 39.1 mph N/A   Scattered Clouds
12:52 PM 50.0 °F - 27.0 °F 41% 29.84 in 10.0 mi West 38.0 mph 47.2 mph N/A   Partly Cloudy
1:41 PM 42.8 °F 31.9 °F 32.0 °F 66% 29.87 in 10.0 mi NNW 32.2 mph 42.6 mph N/A   Mostly Cloudy
1:52 PM 43.0 °F 32.7 °F 33.1 °F 68% 29.91 in 10.0 mi NNW 28.8 mph 39.1 mph N/A   Scattered Clouds
2:52 PM 45.0 °F 37.6 °F 33.1 °F 63% 29.92 in 10.0 mi NNW 17.3 mph 26.5 mph 0.00 in   Mostly Cloudy
3:52 PM 52.0 °F - 28.9 °F 41% 29.92 in 10.0 mi NW 28.8 mph 48.3 mph N/A   Mostly Cloudy
4:52 PM 51.1 °F - 28.9 °F 43% 29.93 in 10.0 mi NW 33.4 mph 43.7 mph N/A   Clear
5:52 PM 51.1 °F - 30.0 °F 44% 29.96 in 10.0 mi NW 39.1 mph 48.3 mph N/A   Clear
6:52 PM 50.0 °F - 28.9 °F 44% 29.98 in 10.0 mi NW 28.8 mph 41.4 mph N/A   Clear
7:52 PM 46.9 °F - 28.0 °F 48% 30.01 in 10.0 mi NNW 18.4 mph - N/A   Clear
8:52 PM 42.1 °F 35.2 °F 27.0 °F 55% 30.07 in 10.0 mi NNW 12.7 mph - N/A   Clear
9:52 PM 37.9 °F 30.5 °F 28.0 °F 68% 30.11 in 10.0 mi North 11.5 mph - N/A   Clear
10:52 PM 37.0 °F 29.8 °F 30.9 °F 79% 30.09 in 10.0 mi North 10.4 mph - N/A   Clear
11:52 PM 32.0 °F 26.4 °F 28.9 °F 88% 30.10 in 10.0 mi WNW 5.8 mph - N/A   Clear