Spearfish, SD

12:43 PM MST on December 05, 2016 (GMT -0700)
Black Hills-Ice

Weather History for KSPF - December, 2012

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Sunday, December 9, 2012

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 8 °F -  
Max Temperature 17 °F 41 °F 68 °F (1957)
Min Temperature 0 °F 13 °F -24 °F (1977)
Degree Days  
Heating Degree Days 56    
Moisture  
Dew Point -1 °F    
Average Humidity 72    
Maximum Humidity 85    
Minimum Humidity 53    
Precipitation  
Precipitation 1.57 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 13 mph (WNW)    
Max Wind Speed 22 mph    
Max Gust Speed 30 mph    
Visibility 8 miles    
Events Snow    
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. 09, 2012 Rise Set
Actual Time 8:20 AM CST 5:15 PM CST
Civil Twilight 7:46 AM CST 5:48 PM CST
Nautical Twilight 7:10 AM CST 6:25 PM CST
Astronomical Twilight 6:34 AM CST 7:00 PM CST
Moon 3:48 AM CST (12/9) 2:29 PM CST (12/9)
Length of Visible Light 10h 01m
Length of Day
8h 55m
Waning Crescent, 18% of the Moon is Illuminated
Dec 9
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last 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 6.8 °F -13.8 °F 1.4 °F 79% 30.04 in 1.5 mi WNW 21.9 mph 26.5 mph 0.18 in Snow Light Snow
12:35 AM 6.8 °F -13.8 °F 1.4 °F 79% 30.05 in 1.5 mi WNW 21.9 mph 29.9 mph 0.36 in Snow Light Snow
12:55 AM 5.0 °F -14.7 °F 1.4 °F 85% 30.05 in 1.5 mi WNW 18.4 mph 29.9 mph 0.46 in Snow Light Snow
1:15 AM 5.0 °F -14.2 °F -0.4 °F 78% 30.06 in 1.8 mi WNW 17.3 mph 21.9 mph 0.07 in Snow Light Snow
1:35 AM 5.0 °F -14.7 °F 1.4 °F 85% 30.07 in 1.8 mi NW 18.4 mph 24.2 mph 0.19 in Snow Light Snow
1:55 AM 5.0 °F -15.2 °F 1.4 °F 85% 30.07 in 1.5 mi WNW 19.6 mph 26.5 mph 0.31 in Snow Light Snow
2:15 AM 5.0 °F -16.2 °F -0.4 °F 78% 30.09 in 1.2 mi WNW 21.9 mph 27.6 mph 0.11 in Snow Light Snow
2:35 AM 5.0 °F -15.7 °F -0.4 °F 78% 30.09 in 1.5 mi WNW 20.7 mph 29.9 mph 0.30 in Snow Light Snow
2:55 AM 5.0 °F -15.2 °F -0.4 °F 78% 30.10 in 2.0 mi WNW 19.6 mph - 0.42 in Snow Light Snow
3:15 AM 5.0 °F -15.7 °F -0.4 °F 78% 30.11 in 2.0 mi WNW 20.7 mph 27.6 mph 0.09 in Snow Light Snow
3:35 AM 5.0 °F -16.2 °F -0.4 °F 78% 30.12 in 2.0 mi WNW 21.9 mph 26.5 mph 0.21 in Snow Light Snow
3:55 AM 3.2 °F -15.9 °F -0.4 °F 85% 30.13 in 3.0 mi WNW 16.1 mph 25.3 mph 0.28 in Snow Light Snow
4:15 AM 3.2 °F -14.6 °F -0.4 °F 85% 30.13 in 3.0 mi WNW 13.8 mph - 0.02 in Snow Light Snow
4:35 AM 3.2 °F -14.6 °F -0.4 °F 85% 30.15 in 8.0 mi WNW 13.8 mph - 0.04 in Snow Light Snow
4:55 AM 3.2 °F -13.1 °F -0.4 °F 85% 30.16 in 10.0 mi WNW 11.5 mph 21.9 mph 0.05 in Snow Light Snow
5:15 AM 5.0 °F -11.6 °F -0.4 °F 78% 30.17 in 9.0 mi NW 12.7 mph 18.4 mph N/A Snow Light Snow
5:35 AM 5.0 °F -11.6 °F -0.4 °F 78% 30.18 in 5.0 mi NW 12.7 mph 17.3 mph 0.01 in Snow Light Snow
5:55 AM 3.2 °F -14.6 °F -0.4 °F 85% 30.20 in 3.0 mi NW 13.8 mph 18.4 mph 0.04 in Snow Light Snow
6:15 AM 3.2 °F -14.6 °F -0.4 °F 85% 30.21 in 10.0 mi NW 13.8 mph - N/A Snow Light Snow
6:35 AM 3.2 °F -13.1 °F -0.4 °F 85% 30.22 in 10.0 mi NW 11.5 mph - N/A Snow Light Snow
6:55 AM 3.2 °F -15.3 °F -2.2 °F 78% 30.23 in 10.0 mi WNW 15.0 mph 19.6 mph 0.01 in Snow Light Snow
7:15 AM 1.4 °F -16.9 °F -2.2 °F 85% 30.25 in 10.0 mi WNW 13.8 mph - N/A   Overcast
7:35 AM 1.4 °F -16.1 °F -2.2 °F 85% 30.26 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
7:55 AM 1.4 °F -16.9 °F -4.0 °F 78% 30.26 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
8:15 AM 1.4 °F -14.5 °F -4.0 °F 78% 30.27 in 10.0 mi West 10.4 mph - N/A   Overcast
8:35 AM -0.4 °F -15.7 °F -5.8 °F 78% 30.27 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
8:55 AM 1.4 °F -12.5 °F -5.8 °F 72% 30.28 in 10.0 mi West 8.1 mph - N/A   Clear
9:15 AM 1.4 °F -12.5 °F -5.8 °F 72% 30.28 in 10.0 mi NW 8.1 mph - N/A   Clear
9:35 AM 1.4 °F -16.1 °F -4.0 °F 78% 30.28 in 10.0 mi West 12.7 mph - N/A   Clear
9:55 AM 3.2 °F -13.1 °F -4.0 °F 72% 30.29 in 10.0 mi West 11.5 mph - N/A   Clear
10:15 AM 5.0 °F -10.0 °F -4.0 °F 66% 30.29 in 10.0 mi West 10.4 mph - N/A   Clear
10:35 AM 5.0 °F -10.0 °F -4.0 °F 66% 30.29 in 10.0 mi West 10.4 mph - N/A   Clear
10:55 AM 5.0 °F -9.1 °F -4.0 °F 66% 30.29 in 10.0 mi West 9.2 mph - N/A   Clear
11:15 AM 6.8 °F -7.8 °F -4.0 °F 61% 30.29 in 10.0 mi WNW 10.4 mph - N/A   Clear
11:35 AM 6.8 °F -7.8 °F -4.0 °F 61% 30.28 in 10.0 mi NW 10.4 mph - N/A   Clear
11:55 AM 6.8 °F -8.6 °F -4.0 °F 61% 30.27 in 10.0 mi WNW 11.5 mph - N/A   Clear
12:15 PM 6.8 °F -6.9 °F -2.2 °F 67% 30.26 in 10.0 mi NW 9.2 mph - N/A   Clear
12:35 PM 6.8 °F -6.9 °F -2.2 °F 67% 30.24 in 10.0 mi NW 9.2 mph - N/A   Clear
12:55 PM 6.8 °F -5.9 °F -2.2 °F 67% 30.24 in 10.0 mi NW 8.1 mph - N/A   Clear
1:15 PM 8.6 °F -4.7 °F -2.2 °F 62% 30.23 in 10.0 mi NW 9.2 mph - N/A   Clear
1:35 PM 8.6 °F 0.1 °F -2.2 °F 62% 30.21 in 10.0 mi WNW 4.6 mph - N/A   Clear
1:55 PM 10.4 °F 4.0 °F -0.4 °F 62% 30.21 in 10.0 mi WNW 3.5 mph - N/A   Clear
2:15 PM 10.4 °F 0.8 °F -0.4 °F 62% 30.19 in 10.0 mi WNW 5.8 mph - N/A   Clear
2:35 PM 12.2 °F 2.9 °F -0.4 °F 57% 30.18 in 10.0 mi WNW 5.8 mph - N/A   Clear
2:55 PM 14.0 °F 5.1 °F -0.4 °F 53% 30.18 in 10.0 mi NW 5.8 mph - N/A   Clear
3:15 PM 14.0 °F 5.1 °F -0.4 °F 53% 30.17 in 10.0 mi NW 5.8 mph - N/A   Clear
3:35 PM 14.0 °F 6.5 °F -0.4 °F 53% 30.17 in 10.0 mi NW 4.6 mph - N/A   Clear
3:55 PM 14.0 °F - -0.4 °F 53% 30.16 in 10.0 mi Calm Calm - N/A   Clear
4:15 PM 14.0 °F - -0.4 °F 53% 30.16 in 10.0 mi Calm Calm - N/A   Clear
4:35 PM 12.2 °F - -0.4 °F 57% 30.15 in 10.0 mi Calm Calm - N/A   Clear
4:55 PM 10.4 °F - -0.4 °F 62% 30.14 in 10.0 mi Calm Calm - N/A   Clear
5:15 PM 5.0 °F -2.1 °F -0.4 °F 78% 30.14 in 10.0 mi SSW 3.5 mph - N/A   Clear
5:35 PM 5.0 °F -4.1 °F -0.4 °F 78% 30.13 in 10.0 mi SSW 4.6 mph - N/A   Clear
5:55 PM 3.2 °F -10.3 °F -2.2 °F 78% 30.12 in 10.0 mi South 8.1 mph - N/A   Clear
6:15 PM 3.2 °F -10.3 °F -2.2 °F 78% 30.11 in 10.0 mi South 8.1 mph - N/A   Clear
6:35 PM 1.4 °F -11.3 °F -2.2 °F 85% 30.09 in 10.0 mi South 6.9 mph - N/A   Clear
6:55 PM -0.4 °F -10.4 °F -4.0 °F 85% 30.09 in 10.0 mi SSE 4.6 mph - N/A   Clear
7:15 PM 1.4 °F -9.9 °F -4.0 °F 78% 30.07 in 10.0 mi South 5.8 mph - N/A   Clear
7:35 PM 1.4 °F -6.2 °F -4.0 °F 78% 30.06 in 10.0 mi SSW 3.5 mph - N/A   Clear
7:55 PM 1.4 °F - -2.2 °F 85% 30.05 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 3.2 °F - -2.2 °F 78% 30.04 in 10.0 mi Calm Calm - N/A   Clear
8:35 PM 3.2 °F -6.2 °F -4.0 °F 72% 30.03 in 10.0 mi SE 4.6 mph - N/A   Clear
8:55 PM 5.0 °F -2.1 °F -2.2 °F 72% 30.01 in 10.0 mi East 3.5 mph - N/A   Clear
9:15 PM 5.0 °F -5.6 °F -2.2 °F 72% 30.00 in 10.0 mi SE 5.8 mph - N/A   Clear
9:35 PM 5.0 °F -2.1 °F -2.2 °F 72% 29.99 in 10.0 mi SE 3.5 mph - N/A   Clear
9:55 PM 10.4 °F - -0.4 °F 62% 29.97 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 12.2 °F - -0.4 °F 57% 29.95 in 10.0 mi Calm Calm - N/A   Clear
10:35 PM 8.6 °F 0.1 °F -0.4 °F 67% 29.93 in 10.0 mi East 4.6 mph - N/A   Clear
10:55 PM 10.4 °F - 1.4 °F 67% 29.92 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 17.6 °F 6.4 °F 3.2 °F 53% 29.91 in 10.0 mi WNW 9.2 mph - N/A   Clear
11:35 PM 17.6 °F 3.2 °F 3.2 °F 53% 29.90 in 10.0 mi West 15.0 mph 19.6 mph N/A   Clear
11:55 PM 17.6 °F 5.0 °F 3.2 °F 53% 29.90 in 10.0 mi WNW 11.5 mph - N/A   Clear