Weather History for Spearfish, SD

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Wednesday, February 20, 2013

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 20 °F -  
Max Temperature 32 °F 45 °F 70 °F (1982)
Min Temperature 8 °F 20 °F -22 °F (1959)
Degree Days  
Heating Degree Days 45    
Moisture  
Dew Point 12 °F    
Average Humidity 70    
Maximum Humidity 92    
Minimum Humidity 48    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.78 in    
Wind  
Wind Speed 3 mph (NW)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
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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Astronomy

Feb. 20, 2013 Rise Set
Actual Time 7:46 AM CST 6:31 PM CST
Civil Twilight 7:17 AM CST 7:00 PM CST
Nautical Twilight 6:43 AM CST 7:34 PM CST
Astronomical Twilight 6:09 AM CST 8:08 PM CST
Moon 1:47 PM CST (2/20) 4:16 AM CST (2/20)
Length of Visible Light 11h 43m
Length of Day
10h 44m
Waxing Gibbous, 76% of the Moon is Illuminated
Feb 20
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 15.8 °F - 10.4 °F 79% 29.81 in 10.0 mi Calm Calm - N/A   Partly Cloudy
12:35 AM 15.8 °F 10.2 °F 10.4 °F 79% 29.81 in 10.0 mi North 3.5 mph - N/A   Partly Cloudy
12:55 AM 15.8 °F 10.2 °F 10.4 °F 79% 29.81 in 10.0 mi NNW 3.5 mph - N/A   Partly Cloudy
1:15 AM 15.8 °F 10.2 °F 8.6 °F 73% 29.80 in 10.0 mi NW 3.5 mph - N/A   Clear
1:35 AM 15.8 °F 8.6 °F 8.6 °F 73% 29.80 in 10.0 mi WNW 4.6 mph - N/A   Clear
1:55 AM 15.8 °F 8.6 °F 8.6 °F 73% 29.80 in 10.0 mi West 4.6 mph - N/A   Clear
2:35 AM 14.0 °F - 8.6 °F 79% 29.79 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 14.0 °F - 10.4 °F 86% 29.79 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 14.0 °F 8.2 °F 8.6 °F 79% 29.78 in 10.0 mi WSW 3.5 mph - N/A   Clear
3:35 AM 14.0 °F - 8.6 °F 79% 29.77 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 14.0 °F - 8.6 °F 79% 29.77 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 12.2 °F 4.3 °F 8.6 °F 85% 29.76 in 10.0 mi SE 4.6 mph - N/A   Clear
4:35 AM 10.4 °F 4.0 °F 8.6 °F 92% 29.75 in 10.0 mi SSE 3.5 mph - N/A   Clear
4:55 AM 14.0 °F - 8.6 °F 79% 29.75 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 14.0 °F - 8.6 °F 79% 29.75 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 12.2 °F - 8.6 °F 85% 29.75 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 10.4 °F - 8.6 °F 92% 29.75 in 10.0 mi Calm Calm - N/A   Clear
6:15 AM 10.4 °F 2.2 °F 8.6 °F 92% 29.75 in 10.0 mi WSW 4.6 mph - N/A   Clear
6:35 AM 14.0 °F 6.5 °F 8.6 °F 79% 29.76 in 10.0 mi West 4.6 mph - N/A   Clear
6:55 AM 12.2 °F 1.7 °F 8.6 °F 85% 29.77 in 10.0 mi WNW 6.9 mph - N/A   Clear
7:15 AM 10.4 °F -1.5 °F 6.8 °F 85% 29.77 in 10.0 mi WNW 8.1 mph - N/A   Clear
7:35 AM 10.4 °F -3.3 °F 6.8 °F 85% 29.78 in 10.0 mi NW 10.4 mph - N/A   Clear
8:15 AM 8.6 °F -2.6 °F 6.8 °F 92% 29.79 in 10.0 mi West 6.9 mph - N/A   Clear
8:55 AM 10.4 °F 0.8 °F 6.8 °F 85% 29.80 in 10.0 mi WNW 5.8 mph - N/A   Clear
9:15 AM 12.2 °F - 8.6 °F 85% 29.80 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 14.0 °F - 8.6 °F 79% 29.80 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 15.8 °F - 10.4 °F 79% 29.79 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 17.6 °F - 10.4 °F 73% 29.79 in 10.0 mi Calm Calm - N/A   Clear
10:55 AM 19.4 °F 14.3 °F 14.0 °F 80% 29.80 in 10.0 mi NE 3.5 mph - N/A   Clear
11:15 AM 21.2 °F 10.9 °F 14.0 °F 74% 29.80 in 10.0 mi NE 9.2 mph - N/A   Clear
11:35 AM 23.0 °F 13.9 °F 14.0 °F 68% 29.80 in 10.0 mi NE 8.1 mph - N/A   Clear
11:55 AM 23.0 °F 13.9 °F 14.0 °F 68% 29.80 in 10.0 mi NE 8.1 mph - N/A   Clear
12:15 PM 24.8 °F 16.1 °F 14.0 °F 64% 29.80 in 10.0 mi ENE 8.1 mph - N/A   Clear
12:35 PM 26.6 °F 20.0 °F 14.0 °F 59% 29.79 in 10.0 mi ENE 5.8 mph - N/A   Clear
12:55 PM 28.4 °F 21.2 °F 14.0 °F 55% 29.78 in 10.0 mi ENE 6.9 mph - N/A   Clear
1:15 PM 28.4 °F 22.2 °F 14.0 °F 55% 29.78 in 10.0 mi ESE 5.8 mph - N/A   Clear
1:35 PM 28.4 °F 24.6 °F 14.0 °F 55% 29.77 in 10.0 mi East 3.5 mph - N/A   Clear
1:55 PM 30.2 °F - 14.0 °F 51% 29.76 in 10.0 mi Calm Calm - N/A   Clear
2:15 PM 32.0 °F - 14.0 °F 48% 29.76 in 10.0 mi Calm Calm - N/A   Clear
2:35 PM 32.0 °F 27.5 °F 14.0 °F 48% 29.75 in 10.0 mi North 4.6 mph - N/A   Clear
2:55 PM 32.0 °F 27.5 °F 14.0 °F 48% 29.74 in 10.0 mi NNW 4.6 mph - N/A   Clear
3:15 PM 32.0 °F 27.5 °F 15.8 °F 51% 29.74 in 10.0 mi NNW 4.6 mph - N/A   Clear
3:35 PM 32.0 °F 28.7 °F 14.0 °F 48% 29.74 in 10.0 mi NE 3.5 mph - N/A   Clear
3:55 PM 32.0 °F 28.7 °F 14.0 °F 48% 29.74 in 10.0 mi NNW 3.5 mph - N/A   Clear
4:15 PM 32.0 °F 25.6 °F 14.0 °F 48% 29.74 in 10.0 mi WNW 6.9 mph - N/A   Clear
4:35 PM 32.0 °F 24.8 °F 14.0 °F 48% 29.74 in 10.0 mi WNW 8.1 mph - N/A   Clear
4:55 PM 32.0 °F 25.6 °F 14.0 °F 48% 29.74 in 10.0 mi NW 6.9 mph - N/A   Clear
5:15 PM 32.0 °F 26.4 °F 14.0 °F 48% 29.74 in 10.0 mi WNW 5.8 mph - N/A   Clear
5:35 PM 32.0 °F 27.5 °F 14.0 °F 48% 29.74 in 10.0 mi WNW 4.6 mph - N/A   Clear
5:55 PM 30.2 °F 25.4 °F 14.0 °F 51% 29.74 in 10.0 mi West 4.6 mph - N/A   Clear
6:15 PM 28.4 °F 24.6 °F 14.0 °F 55% 29.75 in 10.0 mi West 3.5 mph - N/A   Clear
6:55 PM 26.6 °F 21.2 °F 14.0 °F 59% 29.76 in 10.0 mi West 4.6 mph - N/A   Clear
7:15 PM 24.8 °F 17.9 °F 14.0 °F 64% 29.77 in 10.0 mi WSW 5.8 mph - N/A   Clear
7:35 PM 23.0 °F 15.8 °F 14.0 °F 68% 29.77 in 10.0 mi SW 5.8 mph - N/A   Clear
7:55 PM 23.0 °F 13.9 °F 15.8 °F 74% 29.78 in 10.0 mi SSW 8.1 mph - N/A   Clear
8:15 PM 23.0 °F 17.0 °F 14.0 °F 68% 29.78 in 10.0 mi SW 4.6 mph - N/A   Clear
8:55 PM 21.2 °F - 14.0 °F 74% 29.79 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 23.0 °F - 14.0 °F 68% 29.79 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 19.4 °F 10.4 °F 14.0 °F 80% 29.80 in 10.0 mi SSE 6.9 mph - N/A   Clear
9:55 PM 19.4 °F 9.5 °F 14.0 °F 80% 29.80 in 10.0 mi SSW 8.1 mph - N/A   Clear
10:15 PM 21.2 °F 13.6 °F 14.0 °F 74% 29.81 in 10.0 mi SW 5.8 mph - N/A   Clear
10:35 PM 23.0 °F 17.0 °F 15.8 °F 74% 29.81 in 10.0 mi SW 4.6 mph - N/A   Mostly Cloudy
10:55 PM 24.8 °F - 17.6 °F 74% 29.81 in 10.0 mi Calm Calm - N/A   Overcast
11:15 PM 24.8 °F 20.5 °F 17.6 °F 74% 29.82 in 10.0 mi NE 3.5 mph - N/A   Overcast
11:35 PM 23.0 °F 18.4 °F 15.8 °F 74% 29.82 in 10.0 mi ENE 3.5 mph - N/A   Overcast
11:55 PM 24.8 °F 20.5 °F 15.8 °F 69% 29.82 in 10.0 mi ENE 3.5 mph - N/A   Overcast