Weather History for Rapid City, SD

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Monday, September 10, 2012

  Actual Average Record
Temperature  
Mean Temperature 76 °F 63 °F  
Max Temperature 100 °F 78 °F 100 °F (2012)
Min Temperature 52 °F 48 °F 28 °F (1962)
Degree Days  
Heating Degree Days 0 4  
Month to date heating degree days 6 32  
Since 1 July heating degree days 11 69  
Cooling Degree Days 11 3  
Month to date cooling degree days 55 35  
Year to date cooling degree days 925 607  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 33 °F    
Average Humidity 21    
Maximum Humidity 33    
Minimum Humidity 9    
Precipitation  
Precipitation 0.00 in 0.05 in 0.86 in (2003)
Month to date precipitation 0.14 0.43  
Year to date precipitation 10.27 13.06  
Snow  
Snow 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 29.66 in    
Wind  
Wind Speed 8 mph (SW)    
Max Wind Speed 30 mph    
Max Gust Speed 41 mph    
Visibility 10 miles    
Events Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 10, 2012 Rise Set
Actual Time 6:26 AM MDT 7:10 PM MDT
Civil Twilight 5:57 AM MDT 7:40 PM MDT
Nautical Twilight 5:22 AM MDT 8:14 PM MDT
Astronomical Twilight 4:46 AM MDT 8:50 PM MDT
Moon 12:40 AM MDT (9/10) 3:50 PM MDT (9/10)
Length of Visible Light 13h 42m
Length of Day
12h 44m
Waning Crescent, 29% of the Moon is Illuminated
Sep 10
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 66.0 °F 32.0 °F 28% 29.74 in 10.0 mi SSE 4.6 mph - N/A   Clear
1:52 AM 64.9 °F 32.0 °F 29% 29.72 in 10.0 mi SSW 10.4 mph - N/A   Clear
2:52 AM 69.1 °F 30.0 °F 23% 29.70 in 10.0 mi SSW 9.2 mph - N/A   Clear
3:52 AM 60.1 °F 30.0 °F 32% 29.69 in 10.0 mi South 6.9 mph - N/A   Clear
4:52 AM 63.0 °F 28.0 °F 27% 29.67 in 10.0 mi SSW 5.8 mph - N/A   Clear
5:52 AM 57.0 °F 28.9 °F 34% 29.68 in 10.0 mi Calm Calm - N/A   Clear
6:52 AM 59.0 °F 28.9 °F 32% 29.70 in 10.0 mi Calm Calm - N/A   Clear
7:52 AM 69.1 °F 30.9 °F 24% 29.70 in 10.0 mi Calm Calm - N/A   Clear
8:52 AM 82.9 °F 27.0 °F 13% 29.69 in 10.0 mi West 4.6 mph - N/A   Clear
9:52 AM 88.0 °F 26.1 °F 11% 29.70 in 10.0 mi North 10.4 mph - N/A   Clear
10:52 AM 93.9 °F 30.0 °F 10% 29.67 in 10.0 mi NNW 15.0 mph - N/A   Clear
11:52 AM 96.1 °F 30.9 °F 10% 29.66 in 10.0 mi NNW 11.5 mph - N/A   Clear
12:52 PM 96.8 °F 30.2 °F 10% 29.76 in 10.0 mi Variable 3.5 mph - N/A   Clear
1:52 PM 100.0 °F 30.0 °F 9% 29.63 in 10.0 mi NW 8.1 mph - N/A   Clear
2:52 PM 97.0 °F 28.9 °F 9% 29.62 in 10.0 mi Variable 3.5 mph - N/A   Clear
3:52 PM 96.1 °F 30.0 °F 10% 29.62 in 10.0 mi SE 10.4 mph - N/A   Clear
4:52 PM 96.1 °F 28.9 °F 9% 29.60 in 10.0 mi SSE 9.2 mph - N/A   Clear
5:52 PM 88.0 °F 33.1 °F 14% 29.63 in 10.0 mi SSE 8.1 mph - N/A   Clear
6:52 PM 87.1 °F 36.0 °F 16% 29.65 in 10.0 mi WNW 10.4 mph - N/A   Clear
7:52 PM 86.0 °F 37.9 °F 18% 29.64 in 10.0 mi West 6.9 mph - N/A Thunderstorm Clear
8:07 PM 80.6 °F 39.2 °F 23% 29.74 in 10.0 mi South 4.6 mph - N/A   Clear
8:52 PM 82.0 °F 39.9 °F 22% 29.64 in 10.0 mi WSW 9.2 mph - N/A   Clear
9:52 PM 84.9 °F 39.9 °F 20% 29.61 in 10.0 mi SW 15.0 mph 18.4 mph N/A   Clear
10:52 PM 78.1 °F 43.0 °F 29% 29.61 in 10.0 mi WSW 8.1 mph - N/A   Clear
11:52 PM 75.0 °F 43.0 °F 32% 29.61 in 10.0 mi SW 8.1 mph - N/A   Clear