Weather History for Rapid City, SD

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Friday, September 12, 2014

  Actual Average Record
Temperature  
Mean Temperature 42 °F 62 °F  
Max Temperature 56 °F 78 °F 97 °F (1990)
Min Temperature 28 °F 48 °F 28 °F (2014)
Degree Days  
Heating Degree Days 23 5  
Month to date heating degree days 107 42  
Since 1 July heating degree days 143 79  
Cooling Degree Days 0 2  
Month to date cooling degree days 14 40  
Year to date cooling degree days 377 612  
Moisture  
Dew Point 32 °F    
Average Humidity 69    
Maximum Humidity 96    
Minimum Humidity 41    
Precipitation  
Precipitation 0.00 in 0.04 in 1.40 in (2009)
Month to date precipitation 0.52 0.51  
Year to date precipitation 17.12 13.14  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall T 0.0  
Since 1 July snowfall T 0.0  
Since 1 September snowfall T 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.44 in    
Wind  
Wind Speed 10 mph (South)    
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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Astronomy

Sep. 12, 2014 Rise Set
Actual Time 6:28 AM MDT 7:08 PM MDT
Civil Twilight 5:58 AM MDT 7:37 PM MDT
Nautical Twilight 5:24 AM MDT 8:11 PM MDT
Astronomical Twilight 4:48 AM MDT 8:47 PM MDT
Moon 9:20 PM MDT (9/12) 10:43 AM MDT (9/12)
Length of Visible Light 13h 38m
Length of Day
12h 40m
Waning Gibbous, 82% of the Moon is Illuminated
Sep 12
Waning Gibbous
Sep 15
Last Quarter
Sep 24
New
Oct 1
First Quarter
Oct 8
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 35.1 °F 30.1 °F 33.1 °F 92% 30.61 in 10.0 mi NW 5.8 mph - N/A   Overcast
1:52 AM 33.1 °F 27.7 °F 32.0 °F 96% 30.61 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
2:52 AM 33.1 °F 30.0 °F 30.0 °F 89% 30.61 in 10.0 mi WNW 3.5 mph - N/A   Clear
3:52 AM 32.0 °F - 30.9 °F 96% 30.61 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:52 AM 30.0 °F - 28.0 °F 92% 30.61 in 10.0 mi Calm Calm - N/A   Clear
5:52 AM 28.9 °F - 27.0 °F 92% 30.62 in 10.0 mi Calm Calm - N/A   Clear
6:52 AM 30.0 °F 26.5 °F 28.9 °F 96% 30.61 in 10.0 mi South 3.5 mph - N/A   Clear
7:52 AM 34.0 °F - 32.0 °F 92% 30.59 in 10.0 mi Calm Calm - N/A   Clear
8:52 AM 37.9 °F 33.5 °F 33.1 °F 83% 30.57 in 10.0 mi South 5.8 mph - N/A   Clear
9:52 AM 44.1 °F 37.4 °F 34.0 °F 68% 30.54 in 10.0 mi SSW 13.8 mph - N/A   Clear
10:52 AM 46.0 °F 40.6 °F 33.1 °F 61% 30.51 in 10.0 mi SSW 11.5 mph 19.6 mph N/A   Clear
11:52 AM 48.9 °F - 32.0 °F 52% 30.48 in 10.0 mi South 16.1 mph - N/A   Clear
12:52 PM 52.0 °F - 33.1 °F 49% 30.44 in 10.0 mi South 16.1 mph 21.9 mph N/A   Clear
1:52 PM 52.0 °F - 32.0 °F 47% 30.41 in 10.0 mi South 15.0 mph 19.6 mph N/A   Clear
2:52 PM 54.0 °F - 30.9 °F 41% 30.38 in 10.0 mi South 15.0 mph 24.2 mph N/A   Clear
3:52 PM 55.0 °F - 32.0 °F 42% 30.34 in 10.0 mi South 13.8 mph 20.7 mph N/A   Clear
4:52 PM 55.9 °F - 32.0 °F 40% 30.32 in 10.0 mi South 13.8 mph - N/A   Clear
5:52 PM 54.0 °F - 32.0 °F 43% 30.31 in 10.0 mi South 16.1 mph - N/A   Clear
6:52 PM 48.9 °F - 33.1 °F 54% 30.30 in 10.0 mi South 13.8 mph - N/A   Clear
7:52 PM 44.1 °F 38.1 °F 33.1 °F 65% 30.30 in 10.0 mi South 11.5 mph - N/A   Clear
8:52 PM 39.2 °F 32.5 °F 33.8 °F 81% 30.23 in 10.0 mi South 10.4 mph - N/A   Clear
9:52 PM 39.0 °F 32.3 °F 33.1 °F 79% 30.25 in 10.0 mi South 10.4 mph - N/A   Clear
10:52 PM 42.1 °F 34.2 °F 34.0 °F 73% 30.22 in 10.0 mi South 16.1 mph - N/A   Clear
11:52 PM 39.9 °F 32.5 °F 34.0 °F 79% 30.19 in 10.0 mi South 12.7 mph - N/A   Clear