Weather History for Spearfish, SD

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Saturday, May 18, 2013

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 57 °F -  
Max Temperature 64 °F 73 °F 95 °F (1948)
Min Temperature 50 °F 43 °F 34 °F (1952)
Degree Days  
Heating Degree Days 8    
Growing Degree Days 7 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 87    
Maximum Humidity 100    
Minimum Humidity 68    
Precipitation  
Precipitation 0.29 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 7 mph (West)    
Max Wind Speed 21 mph    
Max Gust Speed 29 mph    
Visibility 10 miles    
Events Rain , Thunderstorm    
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

May. 18, 2013 Rise Set
Actual Time 6:24 AM CDT 9:19 PM CDT
Civil Twilight 5:49 AM CDT 9:53 PM CDT
Nautical Twilight 5:06 AM CDT 10:37 PM CDT
Astronomical Twilight 4:15 AM CDT 11:29 PM CDT
Moon 2:09 PM CDT (5/18) 2:34 AM CDT (5/18)
Length of Visible Light 16h 03m
Length of Day
14h 55m
First Quarter, 55% of the Moon is Illuminated
May 18
First Quarter
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 55.4 °F 53.6 °F 94% 29.83 in 10.0 mi WSW 10.4 mph - N/A   Unknown
12:35 AM 55.4 °F 53.6 °F 94% 29.84 in 10.0 mi SW 10.4 mph - N/A   Unknown
12:55 AM 57.2 °F 53.6 °F 88% 29.82 in 10.0 mi West 10.4 mph - N/A   Unknown
1:15 AM 55.4 °F 51.8 °F 88% 29.82 in 10.0 mi SW 10.4 mph - N/A   Unknown
1:35 AM 57.2 °F 50.0 °F 77% 29.82 in 10.0 mi West 5.8 mph - N/A   Unknown
1:55 AM 53.6 °F 48.2 °F 82% 29.82 in 10.0 mi ESE 3.5 mph - N/A   Unknown
2:15 AM 51.8 °F 48.2 °F 88% 29.81 in 10.0 mi SSE 4.6 mph - N/A   Unknown
2:35 AM 50.0 °F 48.2 °F 94% 29.80 in 10.0 mi SSW 6.9 mph - N/A   Unknown
2:55 AM 50.0 °F 48.2 °F 94% 29.82 in 10.0 mi NNW 5.8 mph - N/A   Unknown
3:15 AM 53.6 °F 51.8 °F 94% 29.85 in 10.0 mi WNW 6.9 mph - N/A   Unknown
3:35 AM 53.6 °F 51.8 °F 94% 29.86 in 10.0 mi West 8.1 mph - N/A   Unknown
3:55 AM 53.6 °F 51.8 °F 94% 29.87 in 10.0 mi West 5.8 mph - N/A   Unknown
4:15 AM 53.6 °F 53.6 °F 100% 29.87 in 10.0 mi WSW 5.8 mph - N/A   Unknown
4:35 AM 53.6 °F 53.6 °F 100% 29.88 in 10.0 mi WSW 5.8 mph - N/A   Unknown
4:55 AM 53.6 °F 53.6 °F 100% 29.87 in 10.0 mi Calm Calm - N/A   Unknown
5:15 AM 53.6 °F 51.8 °F 94% 29.88 in 10.0 mi West 3.5 mph - N/A   Unknown
5:35 AM 53.6 °F 53.6 °F 100% 29.87 in 10.0 mi West 5.8 mph - N/A   Unknown
5:55 AM 53.6 °F 53.6 °F 100% 29.87 in 10.0 mi WSW 4.6 mph - N/A   Unknown
6:15 AM 53.6 °F 53.6 °F 100% 29.87 in 10.0 mi WSW 4.6 mph - N/A   Unknown
6:35 AM 53.6 °F 53.6 °F 100% 29.88 in 10.0 mi WSW 3.5 mph - N/A   Unknown
6:55 AM 53.6 °F 51.8 °F 94% 29.88 in 10.0 mi South 4.6 mph - N/A   Unknown
7:15 AM 53.6 °F 51.8 °F 94% 29.89 in 10.0 mi Calm Calm - N/A   Unknown
7:35 AM 55.4 °F 53.6 °F 94% 29.88 in 10.0 mi Calm Calm - N/A   Unknown
7:55 AM 55.4 °F 53.6 °F 94% 29.89 in 10.0 mi WSW 4.6 mph - N/A   Unknown
8:15 AM 55.4 °F 53.6 °F 94% 29.89 in 10.0 mi West 3.5 mph - N/A   Unknown
8:35 AM 55.4 °F 53.6 °F 94% 29.89 in 10.0 mi WNW 3.5 mph - N/A   Unknown
8:55 AM 57.2 °F 53.6 °F 88% 29.89 in 10.0 mi NNW 3.5 mph - N/A   Unknown
9:15 AM 57.2 °F 53.6 °F 88% 29.90 in 10.0 mi NNW 5.8 mph - N/A   Unknown
9:35 AM 57.2 °F 55.4 °F 94% 29.89 in 10.0 mi NW 6.9 mph - N/A   Unknown
9:55 AM 57.2 °F 53.6 °F 88% 29.89 in 10.0 mi WNW 6.9 mph - N/A   Unknown
10:15 AM 57.2 °F 53.6 °F 88% 29.89 in 10.0 mi WNW 5.8 mph - N/A   Unknown
10:35 AM 59.0 °F 55.4 °F 88% 29.88 in 10.0 mi NW 8.1 mph - N/A   Unknown
10:55 AM 59.0 °F 53.6 °F 82% 29.88 in 10.0 mi NW 10.4 mph - N/A   Unknown
11:15 AM 59.0 °F 55.4 °F 88% 29.87 in 10.0 mi NW 8.1 mph - N/A   Unknown
11:35 AM 59.0 °F 55.4 °F 88% 29.87 in 10.0 mi NW 10.4 mph - N/A   Unknown
11:55 AM 60.8 °F 55.4 °F 82% 29.87 in 10.0 mi North 9.2 mph - N/A   Unknown
12:15 PM 60.8 °F 55.4 °F 82% 29.87 in 10.0 mi NW 8.1 mph - N/A   Unknown
12:35 PM 60.8 °F 55.4 °F 82% 29.87 in 10.0 mi NNW 9.2 mph - N/A   Unknown
12:55 PM 59.0 °F 55.4 °F 88% 29.86 in 10.0 mi North 6.9 mph - N/A   Unknown
1:15 PM 59.0 °F 55.4 °F 88% 29.86 in 10.0 mi North 11.5 mph - N/A Thunderstorm Unknown
1:35 PM 59.0 °F 53.6 °F 82% 29.87 in 10.0 mi North 10.4 mph - N/A Thunderstorm Unknown
1:55 PM 57.2 °F 53.6 °F 88% 29.87 in 4.0 mi NW 11.5 mph 16.1 mph 0.03 in Rain , Thunderstorm Light Thunderstorms and Rain
2:15 PM 57.2 °F 55.4 °F 94% 29.89 in 4.0 mi Calm Calm - 0.09 in Rain , Thunderstorm Rain
2:35 PM 57.2 °F 55.4 °F 94% 29.89 in 9.0 mi North 3.5 mph - 0.09 in Thunderstorm Unknown
2:55 PM 57.2 °F 55.4 °F 94% 29.88 in 3.0 mi WNW 8.1 mph - 0.17 in Rain , Thunderstorm Heavy Thunderstorms and Rain
3:15 PM 57.2 °F 55.4 °F 94% 29.87 in 10.0 mi SSW 4.6 mph - N/A Rain Light Rain
3:35 PM 59.0 °F 55.4 °F 88% 29.86 in 10.0 mi West 4.6 mph - N/A   Unknown
3:55 PM 60.8 °F 57.2 °F 88% 29.86 in 10.0 mi West 6.9 mph - N/A   Unknown
4:15 PM 62.6 °F 55.4 °F 77% 29.86 in 10.0 mi South 6.9 mph - N/A   Unknown
4:35 PM 62.6 °F 55.4 °F 77% 29.86 in 10.0 mi Calm Calm - N/A Thunderstorm Unknown
4:55 PM 62.6 °F 53.6 °F 72% 29.84 in 10.0 mi WSW 4.6 mph - N/A Thunderstorm Clear
5:15 PM 64.4 °F 53.6 °F 68% 29.83 in 10.0 mi Calm Calm - N/A   Clear
5:35 PM 62.6 °F 53.6 °F 72% 29.82 in 10.0 mi Calm Calm - N/A   Clear
5:55 PM 62.6 °F 55.4 °F 77% 29.83 in 10.0 mi SSE 3.5 mph - N/A   Scattered Clouds
6:15 PM 62.6 °F 55.4 °F 77% 29.81 in 10.0 mi ESE 3.5 mph - N/A   Scattered Clouds
6:35 PM 62.6 °F 53.6 °F 72% 29.81 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
6:55 PM 62.6 °F 55.4 °F 77% 29.79 in 5.0 mi SW 6.9 mph - 0.02 in Rain Light Rain
7:15 PM 60.8 °F 55.4 °F 82% 29.80 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
7:35 PM 59.0 °F 55.4 °F 88% 29.82 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
7:55 PM 59.0 °F 55.4 °F 88% 29.81 in 10.0 mi SE 5.8 mph - N/A   Mostly Cloudy
8:15 PM 59.0 °F 55.4 °F 88% 29.80 in 10.0 mi SE 3.5 mph - N/A   Partly Cloudy
8:35 PM 59.0 °F 55.4 °F 88% 29.81 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
8:55 PM 59.0 °F 53.6 °F 82% 29.82 in 10.0 mi WSW 10.4 mph - N/A   Partly Cloudy
9:15 PM 60.8 °F 50.0 °F 68% 29.83 in 10.0 mi WSW 17.3 mph 26.5 mph N/A   Mostly Cloudy
9:35 PM 57.2 °F 50.0 °F 77% 29.81 in 5.0 mi SW 20.7 mph 27.6 mph 0.05 in Rain Rain
9:55 PM 55.4 °F 50.0 °F 82% 29.79 in 10.0 mi SW 15.0 mph - 0.07 in Rain Light Rain
10:15 PM 55.4 °F 48.2 °F 77% 29.79 in 10.0 mi North 12.7 mph - N/A   Overcast
10:35 PM 55.4 °F 48.2 °F 77% 29.81 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
10:55 PM 55.4 °F 48.2 °F 77% 29.80 in 10.0 mi WSW 8.1 mph - N/A   Scattered Clouds
11:15 PM 55.4 °F 48.2 °F 77% 29.79 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
11:35 PM 55.4 °F 48.2 °F 77% 29.80 in 10.0 mi WNW 18.4 mph 28.8 mph N/A   Overcast
11:55 PM 53.6 °F 50.0 °F 88% 29.81 in 10.0 mi NW 11.5 mph - N/A Thunderstorm Overcast