Spearfish, SD

4:40 AM MST on February 07, 2016 (GMT -0700)
Black Hills-Ice

Weather History for KSPF - December, 2012

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Saturday, December 8, 2012

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 20 °F -  
Max Temperature 33 °F 37 °F 61 °F (1990)
Min Temperature 6 °F 11 °F -29 °F (1972)
Degree Days  
Heating Degree Days 46    
Moisture  
Dew Point 15 °F    
Average Humidity 66    
Maximum Humidity 93    
Minimum Humidity 41    
Precipitation  
Precipitation 9.43 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.70 in    
Wind  
Wind Speed 9 mph (WNW)    
Max Wind Speed 28 mph    
Max Gust Speed 40 mph    
Visibility 7 miles    
Events Rain , 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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Daily Weather History Graph

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Date:

Astronomy

Dec. 08, 2012 Rise Set
Actual Time 8:19 AM CST 5:15 PM CST
Civil Twilight 7:46 AM CST 5:48 PM CST
Nautical Twilight 7:09 AM CST 6:25 PM CST
Astronomical Twilight 6:34 AM CST 7:00 PM CST
Moon 2:36 AM CST (12/8) 1:55 PM CST (12/8)
Length of Visible Light 10h 02m
Length of Day
8h 56m
Waning Crescent, 28% of the Moon is Illuminated
Dec 8
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 24.8 °F - 14.0 °F 64% 29.76 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 26.6 °F 17.5 °F 15.8 °F 64% 29.75 in 10.0 mi SW 9.2 mph - N/A   Clear
12:55 AM 26.6 °F 16.2 °F 15.8 °F 64% 29.73 in 10.0 mi SSW 11.5 mph - N/A   Clear
1:15 AM 26.6 °F 16.2 °F 15.8 °F 64% 29.72 in 10.0 mi SSW 11.5 mph - N/A   Clear
1:35 AM 28.4 °F - 14.0 °F 55% 29.71 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 26.6 °F 20.0 °F 14.0 °F 59% 29.70 in 10.0 mi ESE 5.8 mph - N/A   Clear
2:15 AM 26.6 °F - 10.4 °F 51% 29.69 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 26.6 °F 20.0 °F 12.2 °F 55% 29.68 in 10.0 mi ENE 5.8 mph - N/A   Clear
2:55 AM 26.6 °F 21.2 °F 10.4 °F 51% 29.67 in 10.0 mi East 4.6 mph - N/A   Clear
3:15 AM 24.8 °F 17.9 °F 10.4 °F 54% 29.65 in 10.0 mi ENE 5.8 mph - N/A   Clear
3:35 AM 28.4 °F 20.4 °F 10.4 °F 47% 29.64 in 10.0 mi ENE 8.1 mph - N/A   Clear
3:55 AM 32.0 °F - 10.4 °F 41% 29.63 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 28.4 °F - 10.4 °F 47% 29.62 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 32.0 °F 26.4 °F 10.4 °F 41% 29.60 in 10.0 mi SE 5.8 mph - N/A   Clear
4:55 AM 32.0 °F 28.7 °F 12.2 °F 44% 29.59 in 10.0 mi East 3.5 mph - N/A   Clear
5:15 AM 28.4 °F 23.3 °F 12.2 °F 51% 29.59 in 10.0 mi South 4.6 mph - N/A   Clear
5:35 AM 24.8 °F 16.9 °F 14.0 °F 64% 29.59 in 10.0 mi SW 6.9 mph - N/A   Clear
5:55 AM 24.8 °F - 14.0 °F 64% 29.58 in 10.0 mi Calm Calm - N/A   Clear
6:15 AM 30.2 °F 23.4 °F 15.8 °F 55% 29.57 in 10.0 mi West 6.9 mph - N/A   Clear
6:55 AM 32.0 °F 25.6 °F 15.8 °F 51% 29.56 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
7:15 AM 32.0 °F 23.0 °F 15.8 °F 51% 29.56 in 10.0 mi West 11.5 mph 17.3 mph N/A   Partly Cloudy
7:35 AM 32.0 °F 22.1 °F 15.8 °F 51% 29.56 in 10.0 mi West 13.8 mph 20.7 mph N/A   Clear
7:55 AM 32.0 °F 23.0 °F 15.8 °F 51% 29.56 in 10.0 mi WSW 11.5 mph - N/A   Clear
8:15 AM 32.0 °F 23.6 °F 15.8 °F 51% 29.56 in 10.0 mi West 10.4 mph - N/A   Clear
8:35 AM 32.0 °F 23.6 °F 15.8 °F 51% 29.56 in 10.0 mi WSW 10.4 mph - N/A   Clear
8:55 AM 30.2 °F - 15.8 °F 55% 29.57 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 30.2 °F 25.4 °F 15.8 °F 55% 29.57 in 10.0 mi West 4.6 mph - N/A   Clear
9:35 AM 32.0 °F 27.5 °F 15.8 °F 51% 29.58 in 10.0 mi WNW 4.6 mph - N/A   Clear
9:55 AM 32.0 °F 25.6 °F 15.8 °F 51% 29.59 in 10.0 mi WNW 6.9 mph - N/A   Clear
10:15 AM 32.0 °F 22.5 °F 17.6 °F 55% 29.61 in 10.0 mi NW 12.7 mph 20.7 mph N/A   Clear
10:35 AM 32.0 °F 23.6 °F 17.6 °F 55% 29.61 in 10.0 mi WNW 10.4 mph - N/A   Clear
10:55 AM 32.0 °F 22.5 °F 17.6 °F 55% 29.62 in 10.0 mi WNW 12.7 mph 20.7 mph N/A   Clear
11:15 AM 33.8 °F 23.5 °F 19.4 °F 56% 29.62 in 10.0 mi WNW 16.1 mph 20.7 mph N/A   Clear
11:35 AM 32.0 °F 22.5 °F 19.4 °F 60% 29.62 in 10.0 mi WNW 12.7 mph 16.1 mph N/A   Clear
11:55 AM 32.0 °F 23.0 °F 21.2 °F 64% 29.62 in 10.0 mi WNW 11.5 mph - N/A   Scattered Clouds
12:15 PM 32.0 °F 24.2 °F 23.0 °F 69% 29.62 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
12:35 PM 32.0 °F 23.6 °F 23.0 °F 69% 29.62 in 10.0 mi WNW 10.4 mph - N/A   Overcast
12:55 PM 32.0 °F 22.5 °F 23.0 °F 69% 29.62 in 10.0 mi WNW 12.7 mph 19.6 mph N/A   Mostly Cloudy
1:15 PM 32.0 °F 23.0 °F 23.0 °F 69% 29.62 in 10.0 mi NW 11.5 mph - N/A   Overcast
1:35 PM 32.0 °F 22.1 °F 23.0 °F 69% 29.62 in 10.0 mi WNW 13.8 mph 20.7 mph N/A   Overcast
1:55 PM 32.0 °F 21.6 °F 23.0 °F 69% 29.63 in 10.0 mi WNW 15.0 mph 24.2 mph N/A   Overcast
2:15 PM 30.2 °F 18.9 °F 24.8 °F 80% 29.64 in 5.0 mi WNW 16.1 mph 21.9 mph N/A   Overcast
2:35 PM 28.4 °F 18.0 °F 23.0 °F 80% 29.64 in 6.0 mi West 12.7 mph 17.3 mph 0.03 in Snow Light Snow
2:55 PM 30.2 °F 22.6 °F 23.0 °F 75% 29.64 in 10.0 mi West 8.1 mph - 0.03 in   Mostly Cloudy
3:15 PM 30.2 °F 19.3 °F 21.2 °F 69% 29.65 in 9.0 mi West 15.0 mph 20.7 mph N/A   Overcast
3:35 PM 30.2 °F 21.9 °F 23.0 °F 75% 29.66 in 10.0 mi WNW 9.2 mph - N/A Snow Light Snow
3:55 PM 30.2 °F 21.3 °F 21.2 °F 69% 29.67 in 10.0 mi NW 10.4 mph - N/A   Overcast
4:15 PM 30.2 °F 19.8 °F 23.0 °F 75% 29.68 in 9.0 mi WNW 13.8 mph - N/A   Mostly Cloudy
4:35 PM 28.4 °F 17.0 °F 19.4 °F 69% 29.70 in 7.0 mi WNW 15.0 mph 21.9 mph N/A   Scattered Clouds
4:55 PM 26.6 °F 15.2 °F 23.0 °F 86% 29.71 in 1.2 mi WNW 13.8 mph 18.4 mph 0.17 in Snow Light Snow
5:15 PM 26.6 °F 14.7 °F 21.2 °F 80% 29.72 in 2.5 mi WNW 15.0 mph 21.9 mph 0.06 in Snow Light Snow
5:35 PM 26.6 °F 12.4 °F 23.0 °F 86% 29.73 in 1.8 mi NW 21.9 mph 28.8 mph 0.16 in Snow Light Snow
5:55 PM 23.0 °F 7.6 °F 19.4 °F 86% 29.75 in 0.8 mi NNW 21.9 mph 31.1 mph 0.55 in   Overcast
6:15 PM 17.6 °F 0.9 °F 15.8 °F 93% 29.77 in 0.8 mi NW 20.7 mph 31.1 mph 0.25 in Snow Light Snow
6:35 PM 17.6 °F 0.5 °F 15.8 °F 93% 29.79 in 1.0 mi NW 21.9 mph 32.2 mph 0.89 in Snow Light Snow
6:55 PM 17.6 °F -1.3 °F 15.8 °F 93% 29.80 in 1.0 mi WNW 27.6 mph 36.8 mph 2.34 in Snow Light Snow
7:15 PM 17.6 °F 1.3 °F 12.2 °F 79% 29.81 in 1.2 mi WNW 19.6 mph 31.1 mph 0.67 in Snow Light Snow
7:35 PM 15.8 °F -3.7 °F 10.4 °F 79% 29.83 in 1.0 mi WNW 27.6 mph 40.3 mph 0.95 in Snow Light Snow
7:55 PM 14.0 °F -3.9 °F 8.6 °F 79% 29.85 in 1.0 mi West 20.7 mph 29.9 mph 1.42 in Snow Light Snow
8:15 PM 14.0 °F -4.7 °F 8.6 °F 79% 29.87 in 1.0 mi WNW 23.0 mph 33.4 mph 0.26 in Snow Light Snow
8:55 PM 12.2 °F -8.2 °F 8.6 °F 85% 29.90 in 0.8 mi WNW 26.5 mph 32.2 mph 2.75 in Snow Light Snow
9:15 PM 10.4 °F -10.3 °F 5.0 °F 79% 29.91 in 1.2 mi WNW 25.3 mph 31.1 mph 0.14 in Snow Light Snow
9:35 PM 10.4 °F -7.2 °F 5.0 °F 79% 29.93 in 1.0 mi WNW 17.3 mph 26.5 mph 0.53 in Snow Light Snow
9:55 PM 10.4 °F -7.2 °F 6.8 °F 85% 29.94 in 1.0 mi WNW 17.3 mph 28.8 mph 1.00 in Snow Light Snow
10:15 PM 8.6 °F -12.7 °F 5.0 °F 85% 29.96 in 0.8 mi WNW 25.3 mph 34.5 mph 0.31 in Snow Light Snow
10:35 PM 8.6 °F -11.9 °F 3.2 °F 79% 29.97 in 2.0 mi WNW 23.0 mph 32.2 mph 0.36 in Snow Light Snow
10:55 PM 8.6 °F -13.1 °F 3.2 °F 79% 29.98 in 1.0 mi WNW 26.5 mph 31.1 mph 0.52 in Snow Light Snow
11:15 PM 6.8 °F -14.3 °F 3.2 °F 85% 29.99 in 1.2 mi WNW 23.0 mph 31.1 mph 0.04 in Snow Light Snow
11:35 PM 6.8 °F -15.1 °F 1.4 °F 79% 30.01 in 1.0 mi WNW 25.3 mph 39.1 mph 0.29 in Rain Light Freezing Rain
11:55 PM 6.8 °F -11.8 °F 1.4 °F 79% 30.03 in 1.2 mi NW 17.3 mph 33.4 mph 0.65 in Rain Light Freezing Rain