Rapid City, SD

8:43 AM MDT on March 26, 2017 (GMT -0600)
Rapid City Regional

Weather History for KRAP - September, 2012

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Friday, September 28, 2012

  Actual Average Record
Temperature  
Mean Temperature 60 °F 55 °F  
Max Temperature 78 °F 69 °F 92 °F (1994)
Min Temperature 41 °F 41 °F 25 °F (1951)
Degree Days  
Heating Degree Days 5 10  
Month to date heating degree days 94 164  
Since 1 July heating degree days 99 201  
Cooling Degree Days 0 0  
Month to date cooling degree days 62 60  
Year to date cooling degree days 932 632  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 41 °F    
Average Humidity 54    
Maximum Humidity 82    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in 0.04 in 0.39 in (1965)
Month to date precipitation 0.14 1.20  
Year to date precipitation 10.27 13.83  
Snow  
Snow 0.00 in 0.10 in 0.10 in (1985)
Month to date snowfall 0.0 0.2  
Since 1 July snowfall 0.0 0.2  
Since 1 September snowfall 0.0 0.2  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 8 mph (SSE)    
Max Wind Speed 22 mph    
Max Gust Speed 29 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Sep. 28, 2012 Rise Set
Actual Time 6:47 AM MDT 6:37 PM MDT
Civil Twilight 6:18 AM MDT 7:06 PM MDT
Nautical Twilight 5:44 AM MDT 7:39 PM MDT
Astronomical Twilight 5:10 AM MDT 8:13 PM MDT
Moon 5:41 PM MDT (9/28) 5:18 AM MDT (9/28)
Length of Visible Light 12h 48m
Length of Day
11h 50m
Waxing Gibbous, 98% of the Moon is Illuminated
Sep 28
Waxing Gibbous
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
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 55.0 °F - 37.0 °F 51% 30.09 in 10.0 mi SSW 3.5 mph - N/A   Clear
1:52 AM 51.1 °F - 37.0 °F 59% 30.10 in 10.0 mi Calm Calm - N/A   Clear
2:52 AM 48.2 °F - 37.4 °F 66% 30.14 in 10.0 mi Calm Calm - N/A   Clear
3:52 AM 50.0 °F - 37.0 °F 61% 30.10 in 10.0 mi Calm Calm - N/A   Clear
4:52 AM 46.9 °F - 37.0 °F 68% 30.11 in 10.0 mi Calm Calm - N/A   Clear
5:52 AM 46.4 °F 45.2 °F 37.4 °F 71% 30.15 in 10.0 mi East 3.5 mph - N/A   Clear
6:52 AM 43.0 °F - 37.0 °F 80% 30.15 in 10.0 mi Calm Calm - N/A   Clear
7:52 AM 48.9 °F - 39.9 °F 71% 30.16 in 10.0 mi ESE 3.5 mph - N/A   Clear
8:52 AM 55.9 °F - 43.0 °F 62% 30.17 in 10.0 mi SE 8.1 mph - N/A   Clear
9:52 AM 62.1 °F - 46.0 °F 56% 30.17 in 10.0 mi South 12.7 mph - N/A   Clear
10:52 AM 68.0 °F - 46.9 °F 47% 30.14 in 10.0 mi SSE 15.0 mph 24.2 mph N/A   Clear
11:52 AM 71.1 °F - 48.0 °F 44% 30.12 in 10.0 mi SSE 17.3 mph 23.0 mph N/A   Clear
12:52 PM 73.9 °F - 46.9 °F 38% 30.08 in 10.0 mi South 16.1 mph 23.0 mph N/A   Clear
1:52 PM 75.9 °F - 46.0 °F 35% 30.06 in 10.0 mi SSE 16.1 mph 26.5 mph N/A   Clear
2:52 PM 75.9 °F - 46.0 °F 35% 30.05 in 10.0 mi SSE 12.7 mph - N/A   Clear
3:52 PM 75.0 °F - 45.0 °F 34% 30.02 in 10.0 mi South 11.5 mph - N/A   Clear
4:52 PM 77.0 °F - 39.9 °F 26% 30.01 in 10.0 mi South 13.8 mph - N/A   Scattered Clouds
5:52 PM 73.0 °F - 37.9 °F 28% 30.02 in 10.0 mi SSE 12.7 mph - N/A   Clear
6:52 PM 63.0 °F - 37.9 °F 40% 30.04 in 10.0 mi SE 8.1 mph - N/A   Clear
7:52 PM 60.1 °F - 37.0 °F 42% 30.05 in 10.0 mi SE 6.9 mph - N/A   Clear
8:52 PM 60.1 °F - 37.0 °F 42% 30.05 in 10.0 mi SSE 4.6 mph - N/A   Clear
9:52 PM 57.2 °F - 37.4 °F 48% 30.08 in 10.0 mi South 8.1 mph - N/A   Clear
10:52 PM 59.0 °F - 37.0 °F 44% 30.04 in 10.0 mi SSE 5.8 mph - N/A   Clear
11:52 PM 57.0 °F - 37.9 °F 49% 30.04 in 10.0 mi SE 5.8 mph - N/A   Clear