, SD

(GMT )
Rapid City

Weather History for KRAP - September, 2011

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Sunday, September 4, 2011

  Actual Average Record
Temperature  
Mean Temperature 57 °F 66 °F  
Max Temperature 73 °F 81 °F 104 °F (1960)
Min Temperature 41 °F 51 °F 34 °F (1962)
Degree Days  
Heating Degree Days 8 3  
Month to date heating degree days 15 10  
Since 1 July heating degree days 17 47  
Cooling Degree Days 0 4  
Month to date cooling degree days 10 16  
Year to date cooling degree days 641 588  
Growing Degree Days 7 (Base 50)    
Moisture  
Dew Point 39 °F    
Average Humidity 56    
Maximum Humidity 82    
Minimum Humidity 29    
Precipitation  
Precipitation 0.00 in 0.04 in 1.11 in (1971)
Month to date precipitation 0.23 0.17  
Year to date precipitation 16.52 12.80  
Snow  
Snow 0.00 in 0.00 in 0.00 in ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Since 1 September snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.25 in    
Wind  
Wind Speed 8 mph (South)    
Max Wind Speed 17 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 04, 2011 Rise Set
Actual Time 6:18 AM MDT 7:23 PM MDT
Civil Twilight 5:48 AM MDT 7:52 PM MDT
Nautical Twilight 5:13 AM MDT 8:27 PM MDT
Astronomical Twilight 4:36 AM MDT 9:05 PM MDT
Moon 2:23 PM MDT (9/4) 11:27 PM MDT (9/4)
Length of Visible Light 14h 03m
Length of Day
13h 04m
Waxing Crescent, 50% of the Moon is Illuminated
Sep 4
Waxing Crescent
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New
Oct 3
First 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 48.0 °F - 39.0 °F 71% 30.31 in 10.0 mi NNW 10.4 mph - N/A   Clear
1:52 AM 46.0 °F 41.9 °F 39.0 °F 76% 30.31 in 10.0 mi NW 8.1 mph - N/A   Clear
2:52 AM 46.4 °F 42.9 °F 37.4 °F 71% 30.32 in 10.0 mi NW 6.9 mph - N/A   Clear
3:52 AM 46.0 °F 41.4 °F 37.9 °F 73% 30.31 in 10.0 mi NW 9.2 mph - N/A   Clear
4:52 AM 45.0 °F 40.6 °F 37.9 °F 76% 30.32 in 10.0 mi WNW 8.1 mph - N/A   Clear
5:52 AM 42.8 °F 40.1 °F 37.4 °F 81% 30.33 in 10.0 mi NW 4.6 mph - N/A   Clear
6:52 AM 45.0 °F 41.2 °F 37.9 °F 76% 30.34 in 10.0 mi WNW 6.9 mph - N/A   Clear
7:52 AM 52.0 °F - 39.0 °F 61% 30.35 in 10.0 mi WNW 5.8 mph - N/A   Clear
8:52 AM 57.9 °F - 37.9 °F 47% 30.34 in 10.0 mi Calm Calm - N/A   Clear
9:52 AM 62.1 °F - 39.0 °F 43% 30.34 in 10.0 mi SSW 4.6 mph - N/A   Clear
10:52 AM 64.9 °F - 39.0 °F 39% 30.31 in 10.0 mi SE 6.9 mph - N/A   Clear
11:52 AM 66.9 °F - 37.0 °F 33% 30.29 in 10.0 mi Calm Calm - N/A   Clear
12:52 PM 68.0 °F - 39.0 °F 35% 30.27 in 10.0 mi SE 8.1 mph - N/A   Clear
1:52 PM 70.0 °F - 39.0 °F 32% 30.24 in 10.0 mi SSE 11.5 mph 18.4 mph N/A   Clear
2:52 PM 71.1 °F - 39.0 °F 31% 30.21 in 10.0 mi SE 10.4 mph 17.3 mph N/A   Clear
3:52 PM 72.0 °F - 39.0 °F 30% 30.18 in 10.0 mi SSE 15.0 mph 20.7 mph N/A   Clear
4:52 PM 72.0 °F - 37.9 °F 29% 30.17 in 10.0 mi SE 11.5 mph 18.4 mph N/A   Clear
5:52 PM 69.8 °F - 37.4 °F 31% 30.18 in 10.0 mi SE 15.0 mph - N/A   Clear
6:52 PM 64.9 °F - 39.0 °F 39% 30.17 in 10.0 mi ESE 11.5 mph - N/A   Clear
7:52 PM 59.0 °F - 39.0 °F 48% 30.16 in 10.0 mi ESE 9.2 mph - N/A   Clear
8:52 PM 55.0 °F - 39.9 °F 57% 30.16 in 10.0 mi ESE 9.2 mph - N/A   Clear
9:52 PM 53.6 °F - 39.2 °F 58% 30.18 in 10.0 mi South 4.6 mph - N/A   Clear
10:52 PM 51.1 °F - 39.9 °F 66% 30.16 in 10.0 mi South 6.9 mph - N/A   Clear
11:52 PM 50.0 °F - 41.0 °F 71% 30.14 in 10.0 mi South 9.2 mph - N/A   Clear