Weather History for Rapid City, SD

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Friday, May 17, 2013

  Actual Average Record
Temperature  
Mean Temperature 63 °F 55 °F  
Max Temperature 79 °F 68 °F 93 °F (1988)
Min Temperature 47 °F 43 °F 31 °F (1969)
Degree Days  
Heating Degree Days 2 10  
Month to date heating degree days 202 212  
Since 1 July heating degree days 7001 6941  
Cooling Degree Days 0 0  
Month to date cooling degree days 5 0  
Year to date cooling degree days 5 2  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 52 °F    
Average Humidity 68    
Maximum Humidity 93    
Minimum Humidity 43    
Precipitation  
Precipitation T in 0.10 in 1.01 in (1962)
Month to date precipitation 0.07 1.69  
Year to date precipitation 4.53 5.16  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 1.0  
Since 1 July snowfall 76.7 41.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.75 in    
Wind  
Wind Speed 9 mph (ENE)    
Max Wind Speed 33 mph    
Max Gust Speed 40 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 17, 2013 Rise Set
Actual Time 5:23 AM MDT 8:14 PM MDT
Civil Twilight 4:49 AM MDT 8:48 PM MDT
Nautical Twilight 4:07 AM MDT 9:31 PM MDT
Astronomical Twilight 3:17 AM MDT 10:21 PM MDT
Moon 12:04 PM MDT (5/17) 1:02 AM MDT (5/17)
Length of Visible Light 15h 58m
Length of Day
14h 50m
Waxing Crescent, 46% of the Moon is Illuminated
May 17
Waxing Crescent
May 17
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
New

Hourly Weather History & Observations

Time (MDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 55.0 °F 50.0 °F 83% 29.78 in 10.0 mi Calm Calm - N/A   Clear
1:52 AM 50.0 °F 46.9 °F 89% 29.78 in 10.0 mi Calm Calm - N/A   Clear
2:52 AM 52.0 °F 48.0 °F 86% 29.81 in 10.0 mi SW 3.5 mph - N/A   Clear
3:52 AM 48.9 °F 46.0 °F 90% 29.79 in 10.0 mi WNW 6.9 mph - N/A   Clear
4:52 AM 48.0 °F 45.0 °F 89% 29.80 in 10.0 mi NW 3.5 mph - N/A   Clear
5:52 AM 53.1 °F 48.9 °F 86% 29.79 in 9.0 mi NW 5.8 mph - N/A   Partly Cloudy
6:52 AM 60.1 °F 53.1 °F 78% 29.78 in 10.0 mi NE 6.9 mph - 0.00 in Rain Light Rain
7:52 AM 59.0 °F 51.1 °F 75% 29.82 in 10.0 mi NNW 6.9 mph - 0.00 in   Clear
8:52 AM 64.0 °F 51.1 °F 63% 29.81 in 10.0 mi North 9.2 mph - N/A   Clear
9:52 AM 66.0 °F 54.0 °F 65% 29.81 in 10.0 mi NE 4.6 mph - N/A   Clear
10:52 AM 69.1 °F 55.9 °F 63% 29.80 in 10.0 mi NE 5.8 mph - N/A   Partly Cloudy
11:52 AM 72.0 °F 57.0 °F 59% 29.78 in 10.0 mi ESE 8.1 mph - N/A   Clear
12:52 PM 73.9 °F 57.0 °F 55% 29.77 in 10.0 mi East 9.2 mph - N/A   Mostly Cloudy
1:52 PM 75.9 °F 54.0 °F 46% 29.76 in 10.0 mi East 10.4 mph 19.6 mph N/A   Partly Cloudy
2:52 PM 77.0 °F 55.0 °F 47% 29.74 in 10.0 mi SE 15.0 mph 21.9 mph N/A   Partly Cloudy
3:52 PM 75.9 °F 54.0 °F 46% 29.72 in 10.0 mi SE 11.5 mph - N/A   Clear
4:52 PM 77.0 °F 54.0 °F 45% 29.69 in 10.0 mi ESE 13.8 mph - N/A   Scattered Clouds
5:52 PM 75.9 °F 52.0 °F 43% 29.67 in 10.0 mi East 9.2 mph - N/A   Clear
6:52 PM 73.9 °F 53.1 °F 48% 29.67 in 10.0 mi East 8.1 mph - N/A   Mostly Cloudy
7:52 PM 69.1 °F 52.0 °F 54% 29.66 in 10.0 mi ENE 6.9 mph - N/A   Clear
8:52 PM 63.0 °F 51.1 °F 65% 29.69 in 10.0 mi ENE 6.9 mph - N/A   Clear
9:52 PM 61.0 °F 51.1 °F 70% 29.70 in 10.0 mi ESE 4.6 mph - N/A   Clear
10:52 PM 61.0 °F 52.0 °F 72% 29.74 in 10.0 mi NNW 15.0 mph - N/A   Clear
11:52 PM 57.9 °F 50.0 °F 75% 29.75 in 10.0 mi NNE 24.2 mph 35.7 mph N/A   Partly Cloudy