Weather History for Spearfish, SD

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Saturday, December 29, 2012

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 26 °F -  
Max Temperature 35 °F 30 °F 62 °F (1965)
Min Temperature 17 °F 5 °F -24 °F (1990)
Degree Days  
Heating Degree Days 39    
Moisture  
Dew Point 12 °F    
Average Humidity 57    
Maximum Humidity 68    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 10 mph (WSW)    
Max Wind Speed 17 mph    
Max Gust Speed 22 mph    
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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Date:

Astronomy

Dec. 29, 2012 Rise Set
Actual Time 8:31 AM CST 5:23 PM CST
Civil Twilight 7:57 AM CST 5:57 PM CST
Nautical Twilight 7:21 AM CST 6:33 PM CST
Astronomical Twilight 6:45 AM CST 7:09 PM CST
Moon 7:03 PM CST (12/29) 9:02 AM CST (12/29)
Length of Visible Light 9h 59m
Length of Day
8h 52m
Full, 98% of the Moon is Illuminated
Dec 29
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

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 23.0 °F 11.1 °F 12.2 °F 63% 29.98 in 10.0 mi West 12.7 mph - N/A   Clear
12:35 AM 23.0 °F 11.7 °F 10.4 °F 59% 29.99 in 10.0 mi West 11.5 mph - N/A   Clear
12:55 AM 23.0 °F 11.7 °F 12.2 °F 63% 29.99 in 10.0 mi West 11.5 mph - N/A   Clear
1:15 AM 23.0 °F 11.1 °F 10.4 °F 59% 29.98 in 10.0 mi West 12.7 mph - N/A   Clear
1:35 AM 23.0 °F 12.4 °F 10.4 °F 59% 29.98 in 10.0 mi West 10.4 mph - N/A   Clear
1:55 AM 23.0 °F 10.6 °F 10.4 °F 59% 29.98 in 10.0 mi West 13.8 mph - N/A   Clear
2:15 AM 24.8 °F 12.4 °F 10.4 °F 54% 29.98 in 10.0 mi West 15.0 mph - N/A   Clear
2:35 AM 24.8 °F 12.4 °F 12.2 °F 59% 29.99 in 10.0 mi West 15.0 mph 19.6 mph N/A   Clear
2:55 AM 24.8 °F 12.4 °F 14.0 °F 64% 30.00 in 10.0 mi West 15.0 mph 19.6 mph N/A   Clear
3:15 AM 24.8 °F 11.5 °F 14.0 °F 64% 30.00 in 10.0 mi WSW 17.3 mph - N/A   Clear
3:35 AM 24.8 °F 12.4 °F 14.0 °F 64% 30.00 in 10.0 mi West 15.0 mph - N/A   Clear
3:55 AM 24.8 °F 12.9 °F 14.0 °F 64% 30.00 in 10.0 mi West 13.8 mph 19.6 mph N/A   Clear
4:15 AM 24.8 °F 11.9 °F 14.0 °F 64% 30.00 in 10.0 mi West 16.1 mph - N/A   Clear
4:35 AM 24.8 °F 12.4 °F 14.0 °F 64% 30.00 in 10.0 mi West 15.0 mph - N/A   Clear
4:55 AM 24.8 °F 12.4 °F 14.0 °F 64% 30.00 in 10.0 mi West 15.0 mph 21.9 mph N/A   Clear
5:15 AM 24.8 °F 12.9 °F 12.2 °F 59% 30.00 in 10.0 mi West 13.8 mph - N/A   Clear
5:35 AM 24.8 °F 12.4 °F 12.2 °F 59% 30.00 in 10.0 mi West 15.0 mph 18.4 mph N/A   Clear
5:55 AM 24.8 °F 13.4 °F 12.2 °F 59% 30.00 in 10.0 mi West 12.7 mph 19.6 mph N/A   Clear
6:15 AM 24.8 °F 12.4 °F 12.2 °F 59% 30.00 in 10.0 mi West 15.0 mph - N/A   Clear
6:35 AM 23.0 °F 11.1 °F 10.4 °F 59% 30.01 in 10.0 mi West 12.7 mph - N/A   Clear
6:55 AM 23.0 °F 13.1 °F 10.4 °F 59% 30.01 in 10.0 mi West 9.2 mph - N/A   Clear
7:15 AM 23.0 °F 13.1 °F 10.4 °F 59% 30.01 in 10.0 mi West 9.2 mph - N/A   Clear
7:35 AM 23.0 °F 11.7 °F 10.4 °F 59% 30.01 in 10.0 mi West 11.5 mph - N/A   Clear
8:15 AM 23.0 °F 12.4 °F 10.4 °F 59% 30.01 in 10.0 mi West 10.4 mph - N/A   Clear
8:35 AM 23.0 °F 11.7 °F 10.4 °F 59% 30.02 in 10.0 mi West 11.5 mph - N/A   Clear
8:55 AM 24.8 °F 14.6 °F 10.4 °F 54% 30.02 in 10.0 mi West 10.4 mph - N/A   Clear
9:15 AM 24.8 °F 14.6 °F 10.4 °F 54% 30.03 in 10.0 mi West 10.4 mph - N/A   Clear
9:35 AM 26.6 °F 17.5 °F 10.4 °F 51% 30.03 in 10.0 mi West 9.2 mph - N/A   Clear
9:55 AM 26.6 °F 17.5 °F 10.4 °F 51% 30.03 in 10.0 mi West 9.2 mph - N/A   Clear
10:15 AM 28.4 °F 20.4 °F 10.4 °F 47% 30.04 in 10.0 mi West 8.1 mph - N/A   Clear
10:35 AM 28.4 °F 19.7 °F 12.2 °F 51% 30.04 in 10.0 mi West 9.2 mph - N/A   Clear
10:55 AM 30.2 °F 21.9 °F 12.2 °F 47% 30.04 in 10.0 mi West 9.2 mph - N/A   Clear
11:35 AM 32.0 °F 25.6 °F 10.4 °F 41% 30.03 in 10.0 mi West 6.9 mph - N/A   Clear
11:55 AM 32.0 °F 27.5 °F 14.0 °F 48% 30.03 in 10.0 mi West 4.6 mph - N/A   Clear
12:15 PM 33.8 °F 29.6 °F 12.2 °F 41% 30.02 in 10.0 mi West 4.6 mph - N/A   Clear
12:35 PM 33.8 °F 28.6 °F 12.2 °F 41% 30.01 in 10.0 mi NW 5.8 mph - N/A   Clear
12:55 PM 32.0 °F 26.4 °F 12.2 °F 44% 30.01 in 10.0 mi NW 5.8 mph - N/A   Clear
1:15 PM 32.0 °F 25.6 °F 12.2 °F 44% 29.99 in 10.0 mi NNW 6.9 mph - N/A   Clear
1:35 PM 33.8 °F 28.6 °F 12.2 °F 41% 29.99 in 10.0 mi NW 5.8 mph - N/A   Clear
1:55 PM 33.8 °F 28.6 °F 12.2 °F 41% 29.98 in 10.0 mi NNW 5.8 mph - N/A   Clear
2:15 PM 33.8 °F 29.6 °F 14.0 °F 44% 29.98 in 10.0 mi NW 4.6 mph - N/A   Clear
2:35 PM 35.6 °F - 14.0 °F 41% 29.97 in 10.0 mi Calm Calm - N/A   Clear
2:55 PM 35.6 °F 32.8 °F 12.2 °F 38% 29.97 in 10.0 mi ESE 3.5 mph - N/A   Clear
3:15 PM 32.0 °F 27.5 °F 14.0 °F 48% 29.97 in 10.0 mi SSE 4.6 mph - N/A   Clear
3:35 PM 32.0 °F 26.4 °F 14.0 °F 48% 29.97 in 10.0 mi SE 5.8 mph - N/A   Clear
3:55 PM 28.4 °F 23.3 °F 14.0 °F 55% 29.97 in 10.0 mi East 4.6 mph - N/A   Clear
4:15 PM 28.4 °F 23.3 °F 15.8 °F 59% 29.97 in 10.0 mi SE 4.6 mph - N/A   Clear
4:35 PM 26.6 °F 18.2 °F 15.8 °F 64% 29.96 in 10.0 mi SE 8.1 mph - N/A   Clear
4:55 PM 24.8 °F 20.5 °F 14.0 °F 64% 29.96 in 10.0 mi ESE 3.5 mph - N/A   Clear
5:15 PM 26.6 °F 20.0 °F 14.0 °F 59% 29.95 in 10.0 mi SE 5.8 mph - N/A   Clear
5:35 PM 26.6 °F 22.6 °F 14.0 °F 59% 29.95 in 10.0 mi SE 3.5 mph - N/A   Clear
5:55 PM 24.8 °F 17.9 °F 12.2 °F 59% 29.95 in 10.0 mi ESE 5.8 mph - N/A   Clear
6:15 PM 24.8 °F 19.1 °F 14.0 °F 64% 29.95 in 10.0 mi SSE 4.6 mph - N/A   Clear
6:35 PM 23.0 °F 18.4 °F 12.2 °F 63% 29.94 in 10.0 mi SSW 3.5 mph - N/A   Clear
6:55 PM 23.0 °F 17.0 °F 14.0 °F 68% 29.93 in 10.0 mi South 4.6 mph - N/A   Clear
7:15 PM 23.0 °F 17.0 °F 12.2 °F 63% 29.93 in 10.0 mi South 4.6 mph - N/A   Clear
7:35 PM 24.8 °F - 14.0 °F 64% 29.92 in 10.0 mi Calm Calm - N/A   Clear
7:55 PM 23.0 °F 14.7 °F 12.2 °F 63% 29.92 in 10.0 mi West 6.9 mph - N/A   Clear
8:15 PM 24.8 °F 17.9 °F 14.0 °F 64% 29.92 in 10.0 mi SW 5.8 mph - N/A   Clear
8:35 PM 21.2 °F - 12.2 °F 68% 29.90 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 24.8 °F 16.9 °F 14.0 °F 64% 29.91 in 10.0 mi West 6.9 mph - N/A   Clear
9:15 PM 24.8 °F 20.5 °F 14.0 °F 64% 29.91 in 10.0 mi SW 3.5 mph - N/A   Clear
9:35 PM 23.0 °F 17.0 °F 12.2 °F 63% 29.91 in 10.0 mi SW 4.6 mph - N/A   Clear
9:55 PM 24.8 °F - 12.2 °F 59% 29.91 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 19.4 °F 14.3 °F 8.6 °F 63% 29.91 in 10.0 mi SSW 3.5 mph - N/A   Clear
10:35 PM 19.4 °F 10.4 °F 8.6 °F 63% 29.90 in 10.0 mi SW 6.9 mph - N/A   Clear
10:55 PM 19.4 °F 14.3 °F 8.6 °F 63% 29.91 in 10.0 mi West 3.5 mph - N/A   Clear
11:15 PM 17.6 °F 12.3 °F 6.8 °F 63% 29.91 in 10.0 mi SSW 3.5 mph - N/A   Clear
11:55 PM 19.4 °F 11.5 °F 6.8 °F 58% 29.90 in 10.0 mi SW 5.8 mph - N/A   Clear