Weather History for Rapid City, SD

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Tuesday, October 12, 2010

  Actual Average Record
Temperature  
Mean Temperature 48 °F 49 °F  
Max Temperature 61 °F 63 °F 90 °F (1956)
Min Temperature 35 °F 35 °F 16 °F (2009)
Degree Days  
Heating Degree Days 17 16  
Month to date heating degree days 72 165  
Since 1 July heating degree days 260 389  
Cooling Degree Days 0 0  
Month to date cooling degree days 11 0  
Year to date cooling degree days 532 633  
Moisture  
Dew Point 36 °F    
Average Humidity 59    
Maximum Humidity 89    
Minimum Humidity 29    
Precipitation  
Precipitation 0.02 in 0.04 in 0.54 in (1970)
Month to date precipitation 0.16 0.63  
Year to date precipitation 18.05 14.55  
Snow  
Snow 0.00 in 0.10 in - ()
Month to date snowfall 0.0 0.3  
Since 1 July snowfall 0.0 0.5  
Since 1 September snowfall 0.0 0.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.32 in    
Wind  
Wind Speed 13 mph (NNW)    
Max Wind Speed 26 mph    
Max Gust Speed 32 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Oct. 12, 2010 Rise Set
Actual Time 7:03 AM MDT 6:13 PM MDT
Civil Twilight 6:34 AM MDT 6:42 PM MDT
Nautical Twilight 6:00 AM MDT 7:15 PM MDT
Astronomical Twilight 5:27 AM MDT 7:49 PM MDT
Moon 12:49 PM MDT (10/12) 9:41 PM MDT (10/12)
Length of Visible Light 12h 08m
Length of Day
11h 10m
Waxing Crescent, 29% of the Moon is Illuminated
Oct 12
Waxing Crescent
Oct 14
First Quarter
Oct 22
Full
Oct 30
Last Quarter
Nov 5
New

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 53.1 °F - 50.0 °F 89% 30.12 in 10.0 mi NNW 23.0 mph 27.6 mph 0.00 in Rain Light Rain
1:52 AM 52.0 °F - 50.0 °F 93% 30.15 in 10.0 mi NNW 21.9 mph 31.1 mph 0.02 in   Overcast
2:52 AM 52.0 °F - 48.0 °F 86% 30.17 in 10.0 mi NNW 18.4 mph 24.2 mph N/A   Mostly Cloudy
3:52 AM 50.0 °F - 46.9 °F 89% 30.20 in 10.0 mi NNW 13.8 mph - N/A   Clear
4:52 AM 50.0 °F - 46.9 °F 89% 30.21 in 10.0 mi NNW 20.7 mph 26.5 mph N/A   Clear
5:52 AM 48.0 °F - 41.0 °F 77% 30.27 in 10.0 mi NNW 13.8 mph - N/A   Clear
6:52 AM 46.0 °F 40.2 °F 39.9 °F 79% 30.32 in 10.0 mi NNW 12.7 mph - N/A   Clear
7:52 AM 46.0 °F 41.4 °F 37.9 °F 73% 30.33 in 10.0 mi NW 9.2 mph - N/A   Clear
8:52 AM 46.0 °F 40.2 °F 37.0 °F 71% 30.36 in 10.0 mi NW 12.7 mph - N/A   Clear
9:52 AM 52.0 °F - 36.0 °F 54% 30.36 in 10.0 mi NNW 21.9 mph 27.6 mph N/A   Clear
10:52 AM 54.0 °F - 34.0 °F 47% 30.36 in 10.0 mi NNW 19.6 mph 26.5 mph N/A   Clear
11:52 AM 57.0 °F - 30.0 °F 36% 30.36 in 10.0 mi NW 20.7 mph 26.5 mph N/A   Clear
12:52 PM 59.0 °F - 30.9 °F 35% 30.34 in 10.0 mi North 17.3 mph 24.2 mph N/A   Clear
1:52 PM 59.0 °F - 30.0 °F 33% 30.32 in 10.0 mi North 17.3 mph 25.3 mph N/A   Clear
2:52 PM 60.1 °F - 28.0 °F 30% 30.30 in 10.0 mi North 17.3 mph 24.2 mph N/A   Clear
3:52 PM 60.1 °F - 28.9 °F 31% 30.32 in 10.0 mi North 15.0 mph - N/A   Clear
4:52 PM 57.9 °F - 28.9 °F 33% 30.32 in 10.0 mi North 9.2 mph - N/A   Clear
5:52 PM 54.0 °F - 30.0 °F 40% 30.34 in 10.0 mi East 3.5 mph - N/A   Clear
6:52 PM 48.9 °F - 30.0 °F 48% 30.36 in 10.0 mi Calm Calm - N/A   Clear
7:52 PM 44.1 °F 38.1 °F 32.0 °F 63% 30.38 in 10.0 mi NNW 11.5 mph - N/A   Clear
8:52 PM 44.1 °F 40.1 °F 32.0 °F 63% 30.41 in 10.0 mi WNW 6.9 mph - N/A   Clear
9:52 PM 39.9 °F 34.5 °F 30.9 °F 70% 30.42 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
10:52 PM 39.0 °F 32.8 °F 28.9 °F 67% 30.43 in 10.0 mi NW 9.2 mph - N/A   Clear
11:52 PM 36.0 °F 29.6 °F 27.0 °F 70% 30.43 in 10.0 mi WNW 8.1 mph - N/A   Clear