Weather History for Spearfish, SD

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Saturday, September 22, 2012

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 52 °F -  
Max Temperature 66 °F 72 °F 92 °F (1967)
Min Temperature 37 °F 39 °F 28 °F (1983)
Degree Days  
Heating Degree Days 14    
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 30 °F    
Average Humidity 45    
Maximum Humidity 70    
Minimum Humidity 28    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.24 in    
Wind  
Wind Speed 6 mph (ESE)    
Max Wind Speed 15 mph    
Max Gust Speed 18 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

Sep. 22, 2012 Rise Set
Actual Time 7:42 AM CDT 7:51 PM CDT
Civil Twilight 7:13 AM CDT 8:20 PM CDT
Nautical Twilight 6:39 AM CDT 8:54 PM CDT
Astronomical Twilight 6:04 AM CDT 9:29 PM CDT
Moon 3:16 PM CDT (9/22) No Moon Set
Length of Visible Light 13h 06m
Length of Day
12h 08m
Waxing Crescent, 49% of the Moon is Illuminated
Sep 22
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Hourly Weather History & Observations

Time (CDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 46.4 °F 41.9 °F 30.2 °F 53% 30.22 in 10.0 mi SSW 9.2 mph - N/A   Clear
12:35 AM 46.4 °F 41.5 °F 28.4 °F 50% 30.23 in 10.0 mi SSW 10.4 mph - N/A   Clear
12:55 AM 46.4 °F 41.5 °F 28.4 °F 50% 30.22 in 10.0 mi SSW 10.4 mph - N/A   Clear
1:15 AM 44.6 °F - 28.4 °F 53% 30.22 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 42.8 °F 39.3 °F 28.4 °F 57% 30.23 in 10.0 mi South 5.8 mph - N/A   Clear
1:55 AM 46.4 °F - 28.4 °F 50% 30.23 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 44.6 °F 41.4 °F 28.4 °F 53% 30.23 in 10.0 mi South 5.8 mph - N/A   Clear
2:35 AM 44.6 °F 43.1 °F 28.4 °F 53% 30.23 in 10.0 mi SSE 3.5 mph - N/A   Clear
2:55 AM 42.8 °F 38.0 °F 28.4 °F 57% 30.23 in 10.0 mi South 8.1 mph - N/A   Clear
3:15 AM 42.8 °F 41.1 °F 28.4 °F 57% 30.24 in 10.0 mi SW 3.5 mph - N/A   Clear
3:35 AM 44.6 °F - 28.4 °F 53% 30.24 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 42.8 °F - 28.4 °F 57% 30.24 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 41.0 °F - 28.4 °F 61% 30.24 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 42.8 °F - 28.4 °F 57% 30.24 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 44.6 °F 43.1 °F 28.4 °F 53% 30.25 in 10.0 mi SW 3.5 mph - N/A   Clear
5:15 AM 41.0 °F 39.0 °F 28.4 °F 61% 30.25 in 10.0 mi WSW 3.5 mph - N/A   Clear
5:35 AM 41.0 °F - 28.4 °F 61% 30.25 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 42.8 °F 39.3 °F 30.2 °F 61% 30.25 in 10.0 mi SSW 5.8 mph - N/A   Clear
6:15 AM 41.0 °F 38.0 °F 30.2 °F 65% 30.25 in 10.0 mi East 4.6 mph - N/A   Clear
6:35 AM 39.2 °F 37.0 °F 28.4 °F 65% 30.25 in 10.0 mi SSE 3.5 mph - N/A   Clear
6:55 AM 41.0 °F 39.0 °F 28.4 °F 61% 30.25 in 10.0 mi SSE 3.5 mph - N/A   Clear
7:15 AM 37.4 °F 34.9 °F 28.4 °F 70% 30.25 in 10.0 mi WSW 3.5 mph - N/A   Clear
7:35 AM 39.2 °F - 30.2 °F 70% 30.26 in 10.0 mi Calm Calm - N/A   Clear
7:55 AM 41.0 °F - 30.2 °F 65% 30.26 in 10.0 mi Calm Calm - N/A   Clear
8:15 AM 41.0 °F - 32.0 °F 70% 30.26 in 10.0 mi Calm Calm - N/A   Clear
8:35 AM 44.6 °F 43.1 °F 32.0 °F 61% 30.26 in 10.0 mi South 3.5 mph - N/A   Clear
8:55 AM 48.2 °F - 32.0 °F 54% 30.27 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 50.0 °F - 32.0 °F 50% 30.27 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 53.6 °F - 32.0 °F 44% 30.27 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 55.4 °F - 32.0 °F 41% 30.27 in 10.0 mi WNW 5.8 mph - N/A   Clear
10:15 AM 55.4 °F - 32.0 °F 41% 30.28 in 10.0 mi NNE 4.6 mph - N/A   Clear
10:35 AM 55.4 °F - 32.0 °F 41% 30.28 in 10.0 mi NE 5.8 mph - N/A   Clear
10:55 AM 55.4 °F - 32.0 °F 41% 30.28 in 10.0 mi NE 5.8 mph - N/A   Clear
11:15 AM 57.2 °F - 32.0 °F 38% 30.28 in 10.0 mi NNE 5.8 mph - N/A   Clear
11:35 AM 57.2 °F - 32.0 °F 38% 30.28 in 10.0 mi NE 6.9 mph - N/A   Clear
11:55 AM 57.2 °F - 30.2 °F 36% 30.28 in 10.0 mi NE 8.1 mph - N/A   Clear
12:15 PM 59.0 °F - 30.2 °F 34% 30.28 in 10.0 mi ENE 8.1 mph - N/A   Clear
12:35 PM 60.8 °F - 32.0 °F 34% 30.27 in 10.0 mi NE 6.9 mph - N/A   Clear
12:55 PM 62.6 °F - 32.0 °F 32% 30.27 in 10.0 mi NE 6.9 mph - N/A   Clear
1:15 PM 62.6 °F - 32.0 °F 32% 30.27 in 10.0 mi NE 9.2 mph - N/A   Clear
1:35 PM 64.4 °F - 32.0 °F 30% 30.27 in 10.0 mi NE 8.1 mph - N/A   Clear
1:55 PM 64.4 °F - 32.0 °F 30% 30.26 in 10.0 mi NE 8.1 mph - N/A   Clear
2:15 PM 64.4 °F - 32.0 °F 30% 30.25 in 10.0 mi East 9.2 mph - N/A   Clear
2:35 PM 64.4 °F - 32.0 °F 30% 30.25 in 10.0 mi ENE 9.2 mph - N/A   Clear
2:55 PM 64.4 °F - 32.0 °F 30% 30.24 in 10.0 mi ENE 10.4 mph - N/A   Clear
3:15 PM 66.2 °F - 32.0 °F 28% 30.24 in 10.0 mi NE 10.4 mph - N/A   Clear
3:35 PM 66.2 °F - 32.0 °F 28% 30.24 in 10.0 mi ENE 11.5 mph 16.1 mph N/A   Clear
3:55 PM 66.2 °F - 32.0 °F 28% 30.23 in 10.0 mi East 12.7 mph 17.3 mph N/A   Clear
4:15 PM 66.2 °F - 32.0 °F 28% 30.23 in 10.0 mi East 10.4 mph 18.4 mph N/A   Clear
4:35 PM 66.2 °F - 32.0 °F 28% 30.22 in 10.0 mi East 15.0 mph - N/A   Clear
4:55 PM 66.2 °F - 32.0 °F 28% 30.22 in 10.0 mi East 15.0 mph 18.4 mph N/A   Clear
5:15 PM 66.2 °F - 32.0 °F 28% 30.22 in 10.0 mi East 13.8 mph 18.4 mph N/A   Clear
5:35 PM 66.2 °F - 32.0 °F 28% 30.21 in 10.0 mi East 13.8 mph - N/A   Clear
5:55 PM 64.4 °F - 32.0 °F 30% 30.21 in 10.0 mi East 13.8 mph 18.4 mph N/A   Clear
6:15 PM 64.4 °F - 32.0 °F 30% 30.21 in 10.0 mi East 15.0 mph - N/A   Clear
6:35 PM 62.6 °F - 32.0 °F 32% 30.21 in 10.0 mi East 13.8 mph - N/A   Clear
6:55 PM 62.6 °F - 30.2 °F 30% 30.21 in 10.0 mi East 12.7 mph - N/A   Clear
7:15 PM 59.0 °F - 30.2 °F 34% 30.21 in 10.0 mi East 13.8 mph - N/A   Clear
7:35 PM 57.2 °F - 30.2 °F 36% 30.21 in 10.0 mi East 10.4 mph - N/A   Clear
7:55 PM 55.4 °F - 28.4 °F 36% 30.21 in 10.0 mi East 10.4 mph - N/A   Clear
8:15 PM 55.4 °F - 28.4 °F 36% 30.22 in 10.0 mi East 11.5 mph - N/A   Clear
8:35 PM 53.6 °F - 28.4 °F 38% 30.22 in 10.0 mi East 9.2 mph - N/A   Clear
8:55 PM 51.8 °F - 28.4 °F 41% 30.22 in 10.0 mi East 9.2 mph - N/A   Clear
9:15 PM 51.8 °F - 28.4 °F 41% 30.22 in 10.0 mi East 9.2 mph - N/A   Clear
9:35 PM 53.6 °F - 28.4 °F 38% 30.22 in 10.0 mi ESE 8.1 mph - N/A   Clear
9:55 PM 48.2 °F - 28.4 °F 46% 30.22 in 10.0 mi SE 5.8 mph - N/A   Clear
10:15 PM 48.2 °F - 30.2 °F 50% 30.22 in 10.0 mi South 4.6 mph - N/A   Clear
10:35 PM 51.8 °F - 28.4 °F 41% 30.22 in 10.0 mi SE 3.5 mph - N/A   Clear
10:55 PM 46.4 °F 45.2 °F 32.0 °F 57% 30.22 in 10.0 mi SW 3.5 mph - N/A   Clear
11:15 PM 46.4 °F 44.3 °F 32.0 °F 57% 30.22 in 10.0 mi SW 4.6 mph - N/A   Clear
11:35 PM 46.4 °F 45.2 °F 32.0 °F 57% 30.21 in 10.0 mi SW 3.5 mph - N/A   Clear
11:55 PM 46.4 °F 42.9 °F 32.0 °F 57% 30.21 in 10.0 mi SSW 6.9 mph - N/A   Clear