Weather History for Spearfish, SD

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Thursday, December 22, 2011

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 16 °F -  
Max Temperature 26 °F 33 °F 60 °F (1972)
Min Temperature 6 °F 10 °F -44 °F (1989)
Degree Days  
Heating Degree Days 49    
Moisture  
Dew Point 7 °F    
Average Humidity 66    
Maximum Humidity 93    
Minimum Humidity 46    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.27 in    
Wind  
Wind Speed 7 mph (WSW)    
Max Wind Speed 20 mph    
Max Gust Speed 24 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. 22, 2011 Rise Set
Actual Time 8:28 AM CST 5:18 PM CST
Civil Twilight 7:55 AM CST 5:52 PM CST
Nautical Twilight 7:18 AM CST 6:29 PM CST
Astronomical Twilight 6:42 AM CST 7:04 PM CST
Moon 6:14 AM CST (12/22) 3:31 PM CST (12/22)
Length of Visible Light 9h 56m
Length of Day
8h 49m
Waning Crescent, 5% of the Moon is Illuminated
Dec 22
Waning Crescent
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
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 14.0 °F 3.9 °F 12.2 °F 93% 30.26 in 10.0 mi West 6.9 mph - N/A   Clear
12:55 AM 14.0 °F 3.9 °F 10.4 °F 86% 30.27 in 10.0 mi West 6.9 mph - N/A   Clear
1:15 AM 12.2 °F 1.7 °F 10.4 °F 92% 30.28 in 10.0 mi West 6.9 mph - N/A   Clear
1:35 AM 10.4 °F -0.4 °F 8.6 °F 92% 30.28 in 10.0 mi WSW 6.9 mph - N/A   Clear
1:55 AM 10.4 °F 0.8 °F 8.6 °F 92% 30.29 in 10.0 mi WSW 5.8 mph - N/A   Clear
2:15 AM 10.4 °F 0.8 °F 8.6 °F 92% 30.29 in 10.0 mi WSW 5.8 mph - N/A   Clear
2:35 AM 10.4 °F -0.4 °F 6.8 °F 85% 30.30 in 10.0 mi WSW 6.9 mph - N/A   Clear
2:55 AM 10.4 °F 0.8 °F 6.8 °F 85% 30.30 in 10.0 mi WSW 5.8 mph - N/A   Clear
3:15 AM 8.6 °F -3.7 °F 6.8 °F 92% 30.30 in 10.0 mi WSW 8.1 mph - N/A   Clear
3:35 AM 8.6 °F -1.3 °F 5.0 °F 85% 30.30 in 10.0 mi WSW 5.8 mph - N/A   Clear
3:55 AM 8.6 °F -2.6 °F 5.0 °F 85% 30.30 in 10.0 mi WSW 6.9 mph - N/A   Clear
4:15 AM 8.6 °F -2.6 °F 5.0 °F 85% 30.30 in 10.0 mi West 6.9 mph - N/A   Clear
4:35 AM 6.8 °F -5.9 °F 3.2 °F 85% 30.31 in 10.0 mi WSW 8.1 mph - N/A   Clear
5:15 AM 8.6 °F -2.6 °F 5.0 °F 85% 30.31 in 10.0 mi West 6.9 mph - N/A   Clear
5:35 AM 6.8 °F -0.1 °F 1.4 °F 79% 30.32 in 10.0 mi WSW 3.5 mph - N/A   Clear
5:55 AM 8.6 °F 0.1 °F 3.2 °F 79% 30.31 in 10.0 mi West 4.6 mph - N/A   Clear
6:15 AM 8.6 °F 0.1 °F 3.2 °F 79% 30.32 in 10.0 mi West 4.6 mph - N/A   Clear
6:55 AM 8.6 °F 2.0 °F 3.2 °F 79% 30.31 in 10.0 mi West 3.5 mph - N/A   Clear
7:15 AM 6.8 °F -2.0 °F 1.4 °F 79% 30.32 in 10.0 mi NNW 4.6 mph - N/A   Clear
7:35 AM 6.8 °F -2.0 °F 1.4 °F 79% 30.32 in 10.0 mi WNW 4.6 mph - N/A   Clear
7:55 AM 8.6 °F 2.0 °F 1.4 °F 73% 30.32 in 10.0 mi WSW 3.5 mph - N/A   Clear
8:15 AM 8.6 °F - 3.2 °F 79% 30.32 in 10.0 mi Calm Calm - N/A   Clear
8:35 AM 6.8 °F -0.1 °F 1.4 °F 79% 30.32 in 10.0 mi West 3.5 mph - N/A   Clear
9:15 AM 8.6 °F -1.3 °F 1.4 °F 73% 30.31 in 10.0 mi West 5.8 mph - N/A   Clear
9:35 AM 12.2 °F 4.3 °F 3.2 °F 67% 30.31 in 10.0 mi West 4.6 mph - N/A   Clear
9:55 AM 12.2 °F 0.7 °F 5.0 °F 73% 30.32 in 10.0 mi West 8.1 mph - N/A   Clear
10:15 AM 14.0 °F 2.9 °F 5.0 °F 67% 30.32 in 10.0 mi West 8.1 mph - N/A   Clear
10:35 AM 15.8 °F 6.1 °F 6.8 °F 68% 30.32 in 10.0 mi West 6.9 mph - N/A   Clear
10:55 AM 17.6 °F 12.3 °F 8.6 °F 68% 30.31 in 10.0 mi NW 3.5 mph - N/A   Clear
11:15 AM 23.0 °F 13.1 °F 8.6 °F 54% 30.31 in 10.0 mi SW 9.2 mph - N/A   Clear
11:35 AM 24.8 °F 14.0 °F 8.6 °F 50% 30.30 in 10.0 mi SW 11.5 mph - N/A   Clear
11:55 AM 24.8 °F 14.6 °F 8.6 °F 50% 30.29 in 10.0 mi WSW 10.4 mph - N/A   Clear
12:15 PM 24.8 °F 16.9 °F 10.4 °F 54% 30.29 in 10.0 mi WSW 6.9 mph - N/A   Clear
12:55 PM 24.8 °F 19.1 °F 12.2 °F 59% 30.29 in 10.0 mi West 4.6 mph - N/A   Clear
1:15 PM 26.6 °F 19.1 °F 10.4 °F 51% 30.28 in 10.0 mi West 6.9 mph - N/A   Clear
1:35 PM 26.6 °F 17.5 °F 10.4 °F 51% 30.26 in 10.0 mi West 9.2 mph - N/A   Clear
1:55 PM 26.6 °F 16.8 °F 10.4 °F 51% 30.25 in 10.0 mi WSW 10.4 mph - N/A   Clear
2:15 PM 26.6 °F 17.5 °F 10.4 °F 51% 30.25 in 10.0 mi West 9.2 mph - N/A   Clear
2:35 PM 26.6 °F 18.2 °F 10.4 °F 51% 30.24 in 10.0 mi WSW 8.1 mph - N/A   Clear
2:55 PM 26.6 °F 20.0 °F 10.4 °F 51% 30.23 in 10.0 mi WSW 5.8 mph - N/A   Clear
3:15 PM 26.6 °F 19.1 °F 8.6 °F 47% 30.23 in 10.0 mi WSW 6.9 mph - N/A   Clear
3:35 PM 26.6 °F 20.0 °F 10.4 °F 51% 30.22 in 10.0 mi West 5.8 mph - N/A   Clear
3:55 PM 26.6 °F 18.2 °F 8.6 °F 47% 30.22 in 10.0 mi WSW 8.1 mph - N/A   Clear
4:15 PM 24.8 °F 19.1 °F 8.6 °F 50% 30.21 in 10.0 mi West 4.6 mph - N/A   Clear
4:35 PM 24.8 °F 19.1 °F 6.8 °F 46% 30.21 in 10.0 mi West 4.6 mph - N/A   Clear
4:55 PM 24.8 °F 17.9 °F 8.6 °F 50% 30.22 in 10.0 mi WNW 5.8 mph - N/A   Clear
5:15 PM 24.8 °F 14.6 °F 8.6 °F 50% 30.21 in 10.0 mi WSW 10.4 mph - N/A   Clear
5:35 PM 23.0 °F 13.1 °F 8.6 °F 54% 30.22 in 10.0 mi West 9.2 mph - N/A   Clear
5:55 PM 23.0 °F - 8.6 °F 54% 30.21 in 10.0 mi Calm Calm - N/A   Clear
6:15 PM 23.0 °F 13.9 °F 6.8 °F 50% 30.20 in 10.0 mi SW 8.1 mph - N/A   Clear
6:35 PM 24.8 °F 14.0 °F 8.6 °F 50% 30.19 in 10.0 mi WSW 11.5 mph 17.3 mph N/A   Clear
6:55 PM 24.8 °F 12.9 °F 6.8 °F 46% 30.18 in 10.0 mi WSW 13.8 mph 17.3 mph N/A   Clear
7:15 PM 24.8 °F 11.9 °F 8.6 °F 50% 30.17 in 10.0 mi WSW 16.1 mph 24.2 mph N/A   Clear
7:35 PM 23.0 °F 12.4 °F 10.4 °F 59% 30.17 in 10.0 mi WNW 10.4 mph - N/A   Clear
7:55 PM 24.8 °F 12.4 °F 6.8 °F 46% 30.16 in 10.0 mi WSW 15.0 mph - N/A   Clear
8:15 PM 24.8 °F 11.5 °F 8.6 °F 50% 30.16 in 10.0 mi WSW 17.3 mph 21.9 mph N/A   Clear
8:35 PM 26.6 °F 13.1 °F 8.6 °F 47% 30.14 in 10.0 mi SW 19.6 mph 24.2 mph N/A   Clear
8:55 PM 26.6 °F 14.7 °F 6.8 °F 43% 30.14 in 10.0 mi WSW 15.0 mph 23.0 mph N/A   Clear
9:15 PM 26.6 °F 14.7 °F 6.8 °F 43% 30.14 in 10.0 mi WSW 15.0 mph 21.9 mph N/A   Clear
9:35 PM 28.4 °F 17.0 °F 6.8 °F 40% 30.14 in 10.0 mi WSW 15.0 mph 23.0 mph N/A   Clear
9:55 PM 26.6 °F 16.8 °F 6.8 °F 43% 30.14 in 10.0 mi West 10.4 mph - N/A   Clear
10:15 PM 24.8 °F 13.4 °F 8.6 °F 50% 30.14 in 10.0 mi WNW 12.7 mph - N/A   Clear
10:55 PM 24.8 °F 13.4 °F 6.8 °F 46% 30.14 in 10.0 mi West 12.7 mph - N/A   Clear
11:15 PM 26.6 °F 14.7 °F 6.8 °F 43% 30.15 in 10.0 mi West 15.0 mph - N/A   Clear
11:35 PM 26.6 °F 16.2 °F 6.8 °F 43% 30.14 in 10.0 mi West 11.5 mph - N/A   Clear