Weather History for Rapid City, SD

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Thursday, December 29, 2011

  Actual Average Record
Temperature  
Mean Temperature 40 °F 24 °F  
Max Temperature 51 °F 36 °F 65 °F (1965)
Min Temperature 29 °F 12 °F -29 °F (1990)
Degree Days  
Heating Degree Days 25 41  
Month to date heating degree days 1080 1162  
Since 1 July heating degree days 2622 2837  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 699 636  
Moisture  
Dew Point 27 °F    
Average Humidity 61    
Maximum Humidity 85    
Minimum Humidity 36    
Precipitation  
Precipitation 0.03 in 0.01 in 0.13 in (1976)
Month to date precipitation 0.24 0.39  
Year to date precipitation 19.37 16.26  
Snow  
Snow 0.00 in 0.20 in - ()
Month to date snowfall 2.8 5.1  
Since 1 July snowfall 17.4 12.9  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.65 in    
Wind  
Wind Speed 11 mph (WNW)    
Max Wind Speed 46 mph    
Max Gust Speed 58 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 29, 2011 Rise Set
Actual Time 7:26 AM MST 4:21 PM MST
Civil Twilight 6:53 AM MST 4:54 PM MST
Nautical Twilight 6:17 AM MST 5:31 PM MST
Astronomical Twilight 5:42 AM MST 6:06 PM MST
Moon 10:09 AM MST (12/29) 10:13 PM MST (12/29)
Length of Visible Light 10h 01m
Length of Day
8h 55m
Waxing Crescent, 27% of the Moon is Illuminated
Dec 29
Waxing Crescent
Dec 31
First Quarter
Jan 9
Full
Jan 16
Last Quarter
Jan 23
New

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 37.0 °F 33.3 °F 25.0 °F 62% 29.74 in 10.0 mi West 4.6 mph - N/A   Clear
1:52 AM 32.0 °F - 24.1 °F 73% 29.73 in 10.0 mi Calm Calm - N/A   Clear
2:52 AM 33.1 °F 28.7 °F 24.1 °F 70% 29.70 in 10.0 mi South 4.6 mph - N/A   Clear
3:52 AM 32.0 °F 27.5 °F 23.0 °F 69% 29.68 in 10.0 mi West 4.6 mph - N/A   Clear
4:52 AM 32.0 °F 26.4 °F 24.1 °F 73% 29.65 in 10.0 mi NW 5.8 mph - N/A   Clear
5:52 AM 34.0 °F - 25.0 °F 70% 29.63 in 10.0 mi Calm Calm - N/A   Clear
6:52 AM 36.0 °F 32.1 °F 25.0 °F 64% 29.60 in 10.0 mi East 4.6 mph - N/A   Overcast
7:52 AM 33.8 °F 30.8 °F 26.6 °F 75% 29.54 in 10.0 mi East 3.5 mph - N/A   Overcast
8:52 AM 36.0 °F - 27.0 °F 70% 29.57 in 10.0 mi Calm Calm - N/A   Overcast
9:52 AM 42.1 °F 38.4 °F 28.9 °F 60% 29.55 in 10.0 mi WNW 5.8 mph - N/A   Overcast
10:52 AM 46.9 °F - 30.9 °F 54% 29.53 in 10.0 mi Calm Calm - N/A   Scattered Clouds
11:52 AM 46.9 °F - 32.0 °F 56% 29.52 in 10.0 mi NNW 9.2 mph - 0.00 in Rain Light Rain
12:52 PM 46.0 °F 38.8 °F 39.0 °F 76% 29.54 in 10.0 mi NNW 18.4 mph - 0.02 in Rain Light Rain
1:31 PM 39.2 °F 26.6 °F 35.6 °F 87% 29.56 in 4.0 mi NNW 34.5 mph 57.5 mph N/A Rain Light Rain
1:52 PM 39.9 °F 29.7 °F 36.0 °F 86% 29.60 in 10.0 mi NW 23.0 mph 34.5 mph 0.01 in Rain Light Rain
2:52 PM 42.1 °F 35.2 °F 34.0 °F 73% 29.60 in 10.0 mi NW 12.7 mph - 0.00 in   Scattered Clouds
3:52 PM 46.0 °F 38.3 °F 28.9 °F 51% 29.64 in 10.0 mi NW 20.7 mph 34.5 mph N/A   Clear
4:52 PM 44.1 °F 36.8 °F 27.0 °F 51% 29.69 in 10.0 mi WNW 16.1 mph 25.3 mph N/A   Mostly Cloudy
5:52 PM 41.0 °F 33.9 °F 26.1 °F 55% 29.72 in 10.0 mi WNW 12.7 mph - N/A   Clear
6:52 PM 39.9 °F 31.8 °F 24.1 °F 53% 29.75 in 10.0 mi WNW 15.0 mph - N/A   Clear
7:52 PM 41.0 °F 33.1 °F 21.9 °F 47% 29.77 in 10.0 mi WNW 15.0 mph - N/A   Clear
8:52 PM 39.2 °F 31.2 °F 21.2 °F 49% 29.72 in 10.0 mi West 13.8 mph - N/A   Clear
9:52 PM 42.1 °F 32.1 °F 19.0 °F 40% 29.75 in 10.0 mi WNW 25.3 mph 35.7 mph N/A   Clear
10:52 PM 42.1 °F 32.1 °F 18.0 °F 38% 29.76 in 10.0 mi WNW 25.3 mph 31.1 mph N/A   Clear
11:52 PM 41.0 °F 30.5 °F 18.0 °F 40% 29.78 in 10.0 mi WNW 26.5 mph 33.4 mph N/A   Clear