Weather History for Spearfish, SD

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Friday, December 7, 2012

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 28 °F -  
Max Temperature 32 °F 37 °F 62 °F (1970)
Min Temperature 23 °F 13 °F -18 °F (1972)
Degree Days  
Heating Degree Days 38    
Moisture  
Dew Point 23 °F    
Average Humidity 85    
Maximum Humidity 100    
Minimum Humidity 59    
Precipitation  
Precipitation 2.72 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 4 mph (West)    
Max Wind Speed 12 mph    
Max Gust Speed -    
Visibility 8 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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Date:

Astronomy

Dec. 07, 2012 Rise Set
Actual Time 8:18 AM CST 5:15 PM CST
Civil Twilight 7:45 AM CST 5:48 PM CST
Nautical Twilight 7:08 AM CST 6:25 PM CST
Astronomical Twilight 6:33 AM CST 7:00 PM CST
Moon 1:26 AM CST (12/7) 1:25 PM CST (12/7)
Length of Visible Light 10h 03m
Length of Day
8h 57m
Last Quarter, 38% of the Moon is Illuminated
Dec 7
Last Quarter
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 26.6 °F 22.6 °F 26.6 °F 100% 29.84 in 1.5 mi NNE 3.5 mph - 0.07 in Snow Light Snow
12:35 AM 26.6 °F - 26.6 °F 100% 29.83 in 2.0 mi Calm Calm - 0.15 in Snow Light Snow
12:55 AM 28.4 °F 24.6 °F 26.6 °F 93% 29.83 in 1.5 mi NNW 3.5 mph - 0.31 in Snow Light Snow
1:15 AM 28.4 °F 22.2 °F 26.6 °F 93% 29.83 in 1.8 mi WNW 5.8 mph - 0.14 in Snow Light Snow
1:35 AM 26.6 °F 20.0 °F 26.6 °F 100% 29.82 in 1.0 mi NW 5.8 mph - 0.64 in Snow Light Snow
1:55 AM 26.6 °F - 26.6 °F 100% 29.82 in 1.2 mi Calm Calm - 1.14 in Snow Light Snow
2:15 AM 26.6 °F - 26.6 °F 100% 29.82 in 1.2 mi Calm Calm - 0.19 in Snow Light Snow
2:35 AM 28.4 °F - 26.6 °F 93% 29.83 in 1.5 mi Calm Calm - 0.51 in Snow Light Snow
2:55 AM 26.6 °F - 26.6 °F 100% 29.83 in 1.5 mi Calm Calm - 0.69 in Snow Light Snow
3:15 AM 26.6 °F 20.0 °F 26.6 °F 100% 29.83 in 1.0 mi ENE 5.8 mph - 0.13 in Snow Light Snow
3:35 AM 26.6 °F 20.0 °F 26.6 °F 100% 29.83 in 1.2 mi East 5.8 mph - 0.29 in Snow Light Snow
3:55 AM 26.6 °F 20.0 °F 26.6 °F 100% 29.83 in 1.2 mi East 5.8 mph - 0.49 in Snow Light Snow
4:15 AM 26.6 °F 18.2 °F 26.6 °F 100% 29.82 in 2.5 mi East 8.1 mph - 0.02 in Snow Light Snow
4:35 AM 26.6 °F 20.0 °F 24.8 °F 93% 29.82 in 3.0 mi East 5.8 mph - 0.03 in Snow Light Snow
4:55 AM 26.6 °F 19.1 °F 24.8 °F 93% 29.82 in 5.0 mi ENE 6.9 mph - 0.03 in Snow Light Snow
5:15 AM 26.6 °F 20.0 °F 24.8 °F 93% 29.82 in 7.0 mi NE 5.8 mph - N/A Snow Light Snow
5:35 AM 26.6 °F 21.2 °F 24.8 °F 93% 29.83 in 7.0 mi NE 4.6 mph - N/A   Overcast
5:55 AM 26.6 °F - 24.8 °F 93% 29.84 in 10.0 mi Calm Calm - N/A   Overcast
6:15 AM 24.8 °F - 24.8 °F 100% 29.84 in 7.0 mi Calm Calm - N/A Rain Light Freezing Rain
6:35 AM 24.8 °F - 24.8 °F 100% 29.84 in 8.0 mi Calm Calm - N/A Rain Light Freezing Rain
6:55 AM 24.8 °F - 24.8 °F 100% 29.84 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:15 AM 24.8 °F - 24.8 °F 100% 29.83 in 6.0 mi Calm Calm - N/A   Scattered Clouds
7:35 AM 24.8 °F - 24.8 °F 100% 29.85 in 5.0 mi Calm Calm - N/A Rain Light Freezing Rain
7:55 AM 23.0 °F 17.0 °F 23.0 °F 100% 29.86 in 7.0 mi West 4.6 mph - N/A   Mostly Cloudy
8:15 AM 24.8 °F 17.9 °F 24.8 °F 100% 29.86 in 9.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
8:35 AM 24.8 °F 20.5 °F 24.8 °F 100% 29.85 in 10.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
8:55 AM 24.8 °F 19.1 °F 24.8 °F 100% 29.87 in 5.0 mi NW 4.6 mph - N/A   Overcast
9:15 AM 24.8 °F 19.1 °F 24.8 °F 100% 29.87 in 2.5 mi WNW 4.6 mph - N/A   Mostly Cloudy
9:35 AM 26.6 °F - 24.8 °F 93% 29.87 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:55 AM 26.6 °F - 26.6 °F 100% 29.88 in 10.0 mi Calm Calm - N/A   Overcast
10:15 AM 26.6 °F - 26.6 °F 100% 29.88 in 9.0 mi Calm Calm - N/A   Overcast
10:55 AM 26.6 °F 21.2 °F 26.6 °F 100% 29.89 in 5.0 mi NW 4.6 mph - 0.06 in Snow Light Snow
11:15 AM 26.6 °F 21.2 °F 26.6 °F 100% 29.90 in 10.0 mi WNW 4.6 mph - N/A   Overcast
11:35 AM 26.6 °F 21.2 °F 26.6 °F 100% 29.89 in 10.0 mi NW 4.6 mph - N/A Rain Light Freezing Rain
11:55 AM 26.6 °F 21.2 °F 24.8 °F 93% 29.89 in 10.0 mi West 4.6 mph - N/A Rain Light Freezing Rain
12:15 PM 26.6 °F 18.2 °F 24.8 °F 93% 29.88 in 10.0 mi NW 8.1 mph - N/A   Overcast
12:35 PM 28.4 °F 24.6 °F 24.8 °F 86% 29.87 in 10.0 mi WNW 3.5 mph - N/A   Overcast
12:55 PM 28.4 °F 23.3 °F 24.8 °F 86% 29.87 in 10.0 mi WSW 4.6 mph - N/A Rain Light Freezing Rain
1:15 PM 28.4 °F 24.6 °F 24.8 °F 86% 29.87 in 10.0 mi WNW 3.5 mph - N/A   Scattered Clouds
1:35 PM 30.2 °F 23.4 °F 26.6 °F 86% 29.86 in 10.0 mi WNW 6.9 mph - N/A   Clear
1:55 PM 30.2 °F 22.6 °F 26.6 °F 86% 29.86 in 10.0 mi NW 8.1 mph - N/A   Clear
2:15 PM 30.2 °F 22.6 °F 24.8 °F 80% 29.85 in 10.0 mi NW 8.1 mph - N/A   Clear
2:55 PM 32.0 °F 24.8 °F 24.8 °F 75% 29.86 in 10.0 mi WNW 8.1 mph - N/A   Clear
3:15 PM 28.4 °F 22.2 °F 24.8 °F 86% 29.85 in 10.0 mi NW 5.8 mph - N/A   Clear
3:35 PM 28.4 °F 22.2 °F 24.8 °F 86% 29.86 in 10.0 mi WNW 5.8 mph - N/A   Clear
3:55 PM 32.0 °F 24.2 °F 21.2 °F 64% 29.86 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
4:15 PM 32.0 °F 25.6 °F 21.2 °F 64% 29.86 in 10.0 mi West 6.9 mph - N/A   Scattered Clouds
4:35 PM 30.2 °F 26.7 °F 19.4 °F 64% 29.86 in 10.0 mi WSW 3.5 mph - N/A   Partly Cloudy
4:55 PM 30.2 °F 26.7 °F 19.4 °F 64% 29.87 in 10.0 mi WSW 3.5 mph - N/A   Scattered Clouds
5:15 PM 30.2 °F 25.4 °F 19.4 °F 64% 29.86 in 10.0 mi West 4.6 mph - N/A   Partly Cloudy
5:35 PM 28.4 °F 21.2 °F 19.4 °F 69% 29.86 in 10.0 mi WSW 6.9 mph - N/A   Partly Cloudy
5:55 PM 26.6 °F 18.2 °F 19.4 °F 74% 29.86 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
6:15 PM 28.4 °F 20.4 °F 19.4 °F 69% 29.86 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
6:35 PM 28.4 °F 20.4 °F 19.4 °F 69% 29.86 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
6:55 PM 28.4 °F 19.7 °F 19.4 °F 69% 29.86 in 10.0 mi West 9.2 mph - N/A   Overcast
7:15 PM 26.6 °F 18.2 °F 19.4 °F 74% 29.87 in 10.0 mi WSW 8.1 mph - N/A   Scattered Clouds
7:35 PM 26.6 °F 16.8 °F 17.6 °F 69% 29.86 in 10.0 mi WSW 10.4 mph - N/A   Partly Cloudy
7:55 PM 28.4 °F 18.5 °F 17.6 °F 64% 29.86 in 10.0 mi WSW 11.5 mph - N/A   Clear
8:15 PM 26.6 °F 18.2 °F 17.6 °F 69% 29.86 in 10.0 mi West 8.1 mph - N/A   Clear
8:35 PM 26.6 °F 19.1 °F 17.6 °F 69% 29.86 in 10.0 mi West 6.9 mph - N/A   Clear
8:55 PM 28.4 °F 19.1 °F 17.6 °F 64% 29.85 in 10.0 mi West 10.4 mph - N/A   Clear
9:15 PM 28.4 °F 19.1 °F 15.8 °F 59% 29.84 in 10.0 mi WSW 10.4 mph - N/A   Clear
9:35 PM 28.4 °F 20.4 °F 15.8 °F 59% 29.83 in 10.0 mi WSW 8.1 mph - N/A   Clear
9:55 PM 26.6 °F 20.0 °F 15.8 °F 64% 29.82 in 10.0 mi WSW 5.8 mph - N/A   Clear
10:15 PM 24.8 °F 16.9 °F 15.8 °F 69% 29.82 in 10.0 mi SW 6.9 mph - N/A   Clear
10:35 PM 23.0 °F 14.7 °F 15.8 °F 74% 29.81 in 10.0 mi SW 6.9 mph - N/A   Clear
10:55 PM 26.6 °F 21.2 °F 15.8 °F 64% 29.80 in 10.0 mi SW 4.6 mph - N/A   Clear
11:15 PM 23.0 °F 18.4 °F 15.8 °F 74% 29.79 in 10.0 mi SW 3.5 mph - N/A   Clear
11:35 PM 26.6 °F - 15.8 °F 64% 29.78 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 26.6 °F - 14.0 °F 59% 29.78 in 10.0 mi Calm Calm - N/A   Clear