Weather History for Rapid City, SD

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Monday, July 21, 2014

  Actual Average Record
Temperature  
Mean Temperature 80 °F 74 °F  
Max Temperature 96 °F 88 °F 106 °F (2007)
Min Temperature 64 °F 59 °F 49 °F (1949)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 19 10  
Since 1 June heating degree days 147 109  
Since 1 July heating degree days 19 10  
Cooling Degree Days 15 9  
Month to date cooling degree days 113 160  
Year to date cooling degree days 155 259  
Since 1 June cooling degree days 135 244  
Growing Degree Days 32 (Base 50)    
Moisture  
Dew Point 60 °F    
Average Humidity 57    
Maximum Humidity 87    
Minimum Humidity 26    
Precipitation  
Precipitation T in 0.07 in 1.21 in (1978)
Month to date precipitation 1.17 1.19  
Year to date precipitation 11.81 10.41  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 June snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.80 in    
Wind  
Wind Speed 8 mph (North)    
Max Wind Speed 23 mph    
Max Gust Speed 33 mph    
Visibility 10 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Jul. 21, 2014 Rise Set
Actual Time 5:28 AM MDT 8:27 PM MDT
Civil Twilight 4:54 AM MDT 9:02 PM MDT
Nautical Twilight 4:10 AM MDT 9:45 PM MDT
Astronomical Twilight 3:18 AM MDT 10:37 PM MDT
Moon 1:23 AM MDT (7/21) 4:10 PM MDT (7/21)
Length of Visible Light 16h 07m
Length of Day
14h 59m
Waning Crescent, 24% of the Moon is Illuminated
Jul 21
Waning Crescent
Jul 26
New
Aug 3
First Quarter
Aug 10
Full
Aug 17
Last Quarter

Hourly Weather History & Observations

Time (MDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 68.0 °F - 63.0 °F 84% 29.70 in 10.0 mi NNW 3.5 mph - N/A   Clear
1:52 AM 69.1 °F - 64.0 °F 84% 29.70 in 10.0 mi NNW 3.5 mph - N/A   Clear
2:52 AM 66.0 °F - 62.1 °F 87% 29.69 in 9.0 mi NW 6.9 mph - N/A   Clear
3:52 AM 64.9 °F - 61.0 °F 87% 29.70 in 10.0 mi North 4.6 mph - N/A   Clear
4:52 AM 68.0 °F - 61.0 °F 78% 29.70 in 10.0 mi SE 4.6 mph - N/A   Clear
5:52 AM 68.0 °F - 62.1 °F 81% 29.70 in 10.0 mi ESE 3.5 mph - N/A   Clear
6:52 AM 71.1 °F - 64.0 °F 78% 29.70 in 10.0 mi ENE 4.6 mph - N/A   Clear
7:52 AM 73.9 °F - 64.0 °F 71% 29.70 in 10.0 mi Calm Calm - N/A   Clear
8:52 AM 80.1 °F 81.7 °F 64.0 °F 58% 29.72 in 10.0 mi ESE 6.9 mph - N/A   Clear
9:52 AM 87.1 °F 86.7 °F 60.1 °F 40% 29.72 in 10.0 mi East 4.6 mph - N/A   Clear
10:52 AM 91.9 °F 90.6 °F 57.0 °F 31% 29.74 in 10.0 mi North 10.4 mph - N/A   Clear
11:52 AM 93.0 °F 92.3 °F 59.0 °F 32% 29.76 in 10.0 mi North 12.7 mph - N/A   Clear
12:52 PM 95.0 °F 93.0 °F 55.0 °F 26% 29.75 in 10.0 mi NNW 10.4 mph - N/A   Clear
1:52 PM 93.2 °F 91.3 °F 55.4 °F 28% 29.87 in 10.0 mi North 11.5 mph - N/A   Clear
2:52 PM 91.4 °F 89.9 °F 57.2 °F 31% 29.86 in 10.0 mi ENE 5.8 mph - N/A   Partly Cloudy
3:52 PM 93.0 °F 92.0 °F 57.9 °F 31% 29.77 in 10.0 mi South 6.9 mph - N/A   Clear
4:52 PM 90.0 °F 88.6 °F 57.0 °F 33% 29.77 in 10.0 mi NNE 8.1 mph - N/A   Clear
5:52 PM 89.1 °F 87.3 °F 55.9 °F 32% 29.77 in 10.0 mi North 6.9 mph - N/A   Clear
6:52 PM 82.9 °F 82.4 °F 57.0 °F 41% 29.79 in 10.0 mi North 11.5 mph - N/A   Clear
7:26 PM 87.1 °F 84.9 °F 53.1 °F 31% 29.90 in 10.0 mi North 18.4 mph 27.6 mph N/A Thunderstorm Clear
7:45 PM 80.1 °F 80.6 °F 57.9 °F 47% 29.91 in 10.0 mi North 17.3 mph 25.3 mph 0.00 in Rain , Thunderstorm Light Thunderstorms and Rain
7:52 PM 79.0 °F - 57.9 °F 48% 29.82 in 10.0 mi NNW 17.3 mph - 0.00 in Rain , Thunderstorm Light Thunderstorms and Rain
8:04 PM 80.1 °F 80.6 °F 57.9 °F 47% 29.91 in 10.0 mi North 16.1 mph - 0.00 in   Partly Cloudy
8:52 PM 75.9 °F - 55.9 °F 50% 29.86 in 10.0 mi North 12.7 mph - 0.00 in   Clear
9:52 PM 73.0 °F - 55.9 °F 55% 29.90 in 10.0 mi North 9.2 mph - N/A   Clear
10:52 PM 73.0 °F - 63.0 °F 71% 30.01 in 10.0 mi NW 18.4 mph - N/A   Partly Cloudy
11:41 PM 69.1 °F - 63.0 °F 81% 30.10 in 10.0 mi NNW 9.2 mph - 0.00 in   Clear
11:52 PM 69.1 °F - 63.0 °F 81% 30.01 in 10.0 mi NW 8.1 mph - 0.00 in   Clear