Weather History for Rapid City, SD

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Wednesday, May 21, 2014

  Actual Average Record
Temperature  
Mean Temperature 55 °F 56 °F  
Max Temperature 63 °F 69 °F 92 °F (1954)
Min Temperature 47 °F 44 °F 29 °F (1963)
Degree Days  
Heating Degree Days 10 9  
Month to date heating degree days 334 250  
Since 1 July heating degree days 7630 6979  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 2  
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 47 °F    
Average Humidity 75    
Maximum Humidity 89    
Minimum Humidity 60    
Precipitation  
Precipitation 0.08 in 0.11 in 2.80 in (1999)
Month to date precipitation 1.13 2.13  
Year to date precipitation 4.98 5.60  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.1 1.1  
Since 1 July snowfall 63.8 41.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.15 in    
Wind  
Wind Speed 6 mph (SSE)    
Max Wind Speed 15 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

May. 21, 2014 Rise Set
Actual Time 5:20 AM MDT 8:18 PM MDT
Civil Twilight 4:45 AM MDT 8:52 PM MDT
Nautical Twilight 4:02 AM MDT 9:36 PM MDT
Astronomical Twilight 3:10 AM MDT 10:28 PM MDT
Moon 1:20 AM MDT (5/21) 12:46 PM MDT (5/21)
Length of Visible Light 16h 06m
Length of Day
14h 58m
Waning Gibbous, 48% of the Moon is Illuminated
May 21
Waning Gibbous
May 28
New
Jun 5
First Quarter
Jun 12
Full
Jun 19
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 51.1 °F 44.1 °F 77% 30.09 in 10.0 mi NW 5.8 mph - N/A   Overcast
1:52 AM 48.9 °F 45.0 °F 86% 30.11 in 10.0 mi North 5.8 mph - 0.01 in Rain Light Rain
2:52 AM 48.0 °F 45.0 °F 89% 30.10 in 10.0 mi NE 4.6 mph - 0.03 in Rain Light Rain
3:52 AM 48.0 °F 46.0 °F 93% 30.12 in 7.0 mi WNW 3.5 mph - 0.00 in Rain Light Rain
4:52 AM 48.0 °F 45.0 °F 89% 30.13 in 10.0 mi Calm Calm - 0.04 in Rain Light Rain
5:52 AM 48.0 °F 45.0 °F 89% 30.14 in 10.0 mi West 3.5 mph - 0.00 in   Overcast
6:52 AM 48.9 °F 44.1 °F 83% 30.14 in 10.0 mi SSW 3.5 mph - 0.00 in   Overcast
7:52 AM 48.9 °F 45.0 °F 86% 30.18 in 10.0 mi South 3.5 mph - 0.00 in   Overcast
8:52 AM 50.0 °F 46.0 °F 86% 30.19 in 10.0 mi South 6.9 mph - 0.00 in Rain Light Rain
9:09 AM 50.0 °F 46.9 °F 89% 30.19 in 10.0 mi South 9.2 mph - 0.00 in Rain Light Rain
9:52 AM 51.1 °F 45.0 °F 80% 30.19 in 10.0 mi SSE 5.8 mph - 0.00 in   Overcast
10:52 AM 53.1 °F 45.0 °F 74% 30.19 in 10.0 mi SSE 6.9 mph - N/A   Overcast
11:22 AM 54.0 °F 45.0 °F 72% 30.20 in 10.0 mi SSE 11.5 mph - N/A   Overcast
11:45 AM 54.0 °F 45.0 °F 72% 30.19 in 10.0 mi South 10.4 mph - N/A   Overcast
11:52 AM 53.6 °F 46.4 °F 77% 30.19 in 10.0 mi SSE 9.2 mph - N/A   Overcast
12:52 PM 57.0 °F 46.9 °F 69% 30.17 in 10.0 mi SSE 9.2 mph - N/A   Overcast
1:52 PM 59.0 °F 46.9 °F 64% 30.16 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
2:52 PM 61.0 °F 48.0 °F 62% 30.14 in 10.0 mi SSE 9.2 mph - N/A   Partly Cloudy
3:52 PM 63.0 °F 48.9 °F 60% 30.12 in 10.0 mi SSE 11.5 mph 17.3 mph N/A   Overcast
4:52 PM 61.0 °F 48.9 °F 64% 30.12 in 10.0 mi SSE 10.4 mph - N/A   Mostly Cloudy
5:52 PM 61.0 °F 48.9 °F 64% 30.12 in 10.0 mi SE 11.5 mph - N/A   Clear
6:52 PM 59.0 °F 48.9 °F 69% 30.11 in 10.0 mi SE 9.2 mph - N/A   Clear
7:52 PM 59.0 °F 48.9 °F 69% 30.10 in 10.0 mi ESE 11.5 mph - N/A   Clear
8:52 PM 54.0 °F 48.0 °F 80% 30.13 in 10.0 mi Calm Calm - N/A   Clear
9:52 PM 52.0 °F 48.0 °F 86% 30.16 in 10.0 mi NE 3.5 mph - N/A   Clear
10:52 PM 51.8 °F 48.2 °F 88% 30.13 in 10.0 mi Calm Calm - N/A   Clear
11:52 PM 50.0 °F 46.9 °F 89% 30.13 in 10.0 mi Calm Calm - N/A   Clear