Weather History for Spearfish, SD

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Saturday, October 8, 2011

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 45 °F -  
Max Temperature 48 °F 67 °F 90 °F (1975)
Min Temperature 42 °F 34 °F 17 °F (1970)
Degree Days  
Heating Degree Days 20    
Growing Degree Days 0 (Base 50)    
Moisture  
Dew Point 42 °F    
Average Humidity 89    
Maximum Humidity 100    
Minimum Humidity 71    
Precipitation  
Precipitation 0.36 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 10 mph (NW)    
Max Wind Speed 14 mph    
Max Gust Speed 18 mph    
Visibility 6 miles    
Events Rain    
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

Oct. 08, 2011 Rise Set
Actual Time 8:01 AM CDT 7:23 PM CDT
Civil Twilight 7:32 AM CDT 7:52 PM CDT
Nautical Twilight 6:58 AM CDT 8:26 PM CDT
Astronomical Twilight 6:24 AM CDT 8:59 PM CDT
Moon 5:39 PM CDT (10/8) 4:44 AM CDT (10/8)
Length of Visible Light 12h 20m
Length of Day
11h 22m
Waxing Gibbous, 90% of the Moon is Illuminated
Oct 8
Waxing Gibbous
Oct 11
Full
Oct 19
Last Quarter
Oct 26
New
Nov 2
First Quarter

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 48.2 °F - 39.2 °F 71% 29.90 in 10.0 mi West 11.5 mph - N/A   Clear
12:35 AM 48.2 °F - 39.2 °F 71% 29.88 in 10.0 mi West 12.7 mph 17.3 mph N/A   Clear
12:55 AM 48.2 °F - 39.2 °F 71% 29.90 in 10.0 mi West 6.9 mph - N/A   Clear
1:15 AM 46.4 °F 41.9 °F 39.2 °F 76% 29.90 in 10.0 mi West 9.2 mph - N/A   Clear
1:35 AM 46.4 °F 42.9 °F 39.2 °F 76% 29.90 in 10.0 mi West 6.9 mph - N/A   Clear
1:55 AM 44.6 °F 43.1 °F 39.2 °F 81% 29.92 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
2:15 AM 44.6 °F 40.7 °F 39.2 °F 81% 29.94 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
2:35 AM 46.4 °F 43.5 °F 39.2 °F 76% 29.95 in 10.0 mi WNW 5.8 mph - N/A   Overcast
2:55 AM 46.4 °F 41.9 °F 39.2 °F 76% 29.97 in 10.0 mi West 9.2 mph - N/A   Overcast
3:15 AM 46.4 °F 41.9 °F 39.2 °F 76% 29.99 in 9.0 mi West 9.2 mph - N/A   Overcast
3:35 AM 46.4 °F 43.5 °F 41.0 °F 81% 29.99 in 4.0 mi WNW 5.8 mph - N/A Rain Light Rain
3:55 AM 46.4 °F 42.9 °F 41.0 °F 81% 29.99 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
4:15 AM 46.4 °F 42.9 °F 41.0 °F 81% 29.99 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
4:35 AM 46.4 °F 42.9 °F 41.0 °F 81% 30.00 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
4:55 AM 46.4 °F 41.5 °F 41.0 °F 81% 30.01 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy
5:15 AM 44.6 °F 38.8 °F 42.8 °F 93% 30.02 in 4.0 mi WNW 11.5 mph - N/A   Partly Cloudy
5:35 AM 44.6 °F 38.4 °F 42.8 °F 93% 30.02 in 1.5 mi NW 12.7 mph - N/A Rain Light Rain
5:55 AM 44.6 °F 39.7 °F 44.6 °F 100% 30.03 in 3.0 mi WNW 9.2 mph - 0.01 in   Partly Cloudy
6:15 AM 44.6 °F 39.2 °F 44.6 °F 100% 30.04 in 1.8 mi NW 10.4 mph - 0.01 in Rain Light Rain
6:35 AM 44.6 °F 39.7 °F 44.6 °F 100% 30.05 in 2.0 mi NW 9.2 mph - 0.02 in Rain Light Rain
6:55 AM 44.6 °F 40.2 °F 44.6 °F 100% 30.07 in 4.0 mi WNW 8.1 mph - 0.02 in Rain Light Rain
7:15 AM 44.6 °F 40.2 °F 44.6 °F 100% 30.08 in 2.5 mi NW 8.1 mph - N/A Rain Light Rain
7:35 AM 44.6 °F 40.2 °F 44.6 °F 100% 30.10 in 1.8 mi NW 8.1 mph - 0.03 in Rain Light Rain
7:55 AM 44.6 °F 39.2 °F 44.6 °F 100% 30.11 in 2.5 mi NW 10.4 mph - 0.07 in Rain Light Rain
8:15 AM 44.6 °F 39.7 °F 44.6 °F 100% 30.11 in 4.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
8:35 AM 44.6 °F 39.7 °F 44.6 °F 100% 30.10 in 1.0 mi NW 9.2 mph 16.1 mph 0.01 in Rain Light Rain
8:55 AM 44.6 °F 39.2 °F 42.8 °F 93% 30.12 in 0.8 mi NW 10.4 mph - 0.03 in Rain Light Rain
9:15 AM 42.8 °F 36.2 °F 42.8 °F 100% 30.12 in 1.5 mi NW 12.7 mph 17.3 mph N/A Rain Light Rain
9:35 AM 44.6 °F 38.8 °F 42.8 °F 93% 30.13 in 1.5 mi NNW 11.5 mph 18.4 mph N/A Rain Light Rain
9:55 AM 44.6 °F 39.2 °F 42.8 °F 93% 30.14 in 1.5 mi NW 10.4 mph 17.3 mph 0.01 in Rain Light Rain
10:15 AM 44.6 °F 38.8 °F 42.8 °F 93% 30.14 in 1.0 mi NW 11.5 mph 18.4 mph N/A Rain Light Rain
10:35 AM 44.6 °F 38.8 °F 42.8 °F 93% 30.14 in 1.5 mi NNW 11.5 mph - 0.02 in Rain Light Rain
10:55 AM 42.8 °F 37.5 °F 42.8 °F 100% 30.14 in 4.0 mi NNW 9.2 mph - 0.02 in   Partly Cloudy
11:15 AM 42.8 °F 37.0 °F 42.8 °F 100% 30.14 in 1.8 mi NW 10.4 mph - N/A Rain Light Rain
11:55 AM 44.6 °F 39.7 °F 42.8 °F 93% 30.15 in 4.0 mi NNW 9.2 mph 16.1 mph N/A Rain Light Rain
12:15 PM 44.6 °F 39.7 °F 42.8 °F 93% 30.15 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
12:35 PM 44.6 °F 39.7 °F 42.8 °F 93% 30.16 in 10.0 mi NW 9.2 mph - N/A   Overcast
12:55 PM 44.6 °F 39.2 °F 42.8 °F 93% 30.16 in 10.0 mi NW 10.4 mph - N/A   Overcast
1:15 PM 44.6 °F 38.1 °F 41.0 °F 87% 30.16 in 10.0 mi NNW 13.8 mph 18.4 mph N/A   Overcast
1:35 PM 44.6 °F 38.1 °F 41.0 °F 87% 30.16 in 10.0 mi NNW 13.8 mph 17.3 mph N/A   Overcast
2:15 PM 44.6 °F 39.7 °F 41.0 °F 87% 30.16 in 10.0 mi NNW 9.2 mph 18.4 mph N/A   Overcast
2:35 PM 44.6 °F 39.7 °F 41.0 °F 87% 30.16 in 10.0 mi NNW 9.2 mph - N/A Rain Light Rain
2:55 PM 44.6 °F 39.2 °F 41.0 °F 87% 30.16 in 10.0 mi NNW 10.4 mph - N/A Rain Light Rain
3:15 PM 44.6 °F 38.1 °F 39.2 °F 81% 30.17 in 8.0 mi NNW 13.8 mph - 0.01 in Rain Light Rain
3:35 PM 44.6 °F 39.2 °F 41.0 °F 87% 30.17 in 5.0 mi NNW 10.4 mph - 0.05 in Rain Light Rain
3:55 PM 44.6 °F 39.7 °F 41.0 °F 87% 30.18 in 7.0 mi NW 9.2 mph - 0.07 in Rain Light Rain
4:15 PM 44.6 °F 39.2 °F 41.0 °F 87% 30.18 in 7.0 mi NW 10.4 mph - 0.01 in Rain Light Rain
4:35 PM 44.6 °F 40.2 °F 41.0 °F 87% 30.18 in 3.0 mi NNW 8.1 mph - 0.06 in Rain Light Rain
4:55 PM 44.6 °F 38.4 °F 42.8 °F 93% 30.19 in 5.0 mi NNW 12.7 mph - 0.07 in Rain Light Rain
5:15 PM 44.6 °F 39.2 °F 41.0 °F 87% 30.19 in 2.5 mi NNW 10.4 mph 16.1 mph 0.02 in Rain Light Rain
5:35 PM 44.6 °F 38.1 °F 41.0 °F 87% 30.19 in 4.0 mi North 13.8 mph 18.4 mph 0.03 in Rain Light Rain
5:55 PM 44.6 °F 39.7 °F 41.0 °F 87% 30.21 in 9.0 mi NW 9.2 mph - 0.04 in Rain Light Rain
6:15 PM 42.8 °F 37.5 °F 41.0 °F 93% 30.21 in 8.0 mi NNW 9.2 mph - N/A Rain Light Rain
6:35 PM 42.8 °F 38.0 °F 41.0 °F 93% 30.22 in 10.0 mi NW 8.1 mph - N/A Rain Light Rain
6:55 PM 42.8 °F 37.5 °F 41.0 °F 93% 30.22 in 5.0 mi NW 9.2 mph - 0.02 in Rain Light Rain
7:15 PM 42.8 °F 37.5 °F 41.0 °F 93% 30.22 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
7:35 PM 42.8 °F 37.5 °F 41.0 °F 93% 30.23 in 10.0 mi NNW 9.2 mph - N/A   Overcast
7:55 PM 42.8 °F 38.6 °F 41.0 °F 93% 30.24 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
8:15 PM 42.8 °F 38.0 °F 41.0 °F 93% 30.24 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
8:35 PM 42.8 °F 38.6 °F 41.0 °F 93% 30.24 in 10.0 mi NW 6.9 mph - N/A   Overcast
8:55 PM 42.8 °F 38.0 °F 41.0 °F 93% 30.24 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
9:15 PM 41.0 °F 35.2 °F 41.0 °F 100% 30.25 in 10.0 mi NW 9.2 mph - N/A Rain Light Rain
9:35 PM 41.0 °F 36.4 °F 41.0 °F 100% 30.26 in 10.0 mi NW 6.9 mph - N/A   Overcast
9:55 PM 41.0 °F 36.4 °F 39.2 °F 93% 30.26 in 10.0 mi WNW 6.9 mph - N/A   Overcast
10:15 PM 41.0 °F 37.1 °F 41.0 °F 100% 30.26 in 10.0 mi West 5.8 mph - N/A   Overcast
10:35 PM 41.0 °F 38.0 °F 39.2 °F 93% 30.26 in 10.0 mi West 4.6 mph - N/A   Overcast
10:55 PM 41.0 °F 36.4 °F 39.2 °F 93% 30.25 in 10.0 mi WSW 6.9 mph - N/A   Overcast
11:15 PM 41.0 °F 38.0 °F 39.2 °F 93% 30.25 in 10.0 mi WSW 4.6 mph - N/A   Overcast
11:35 PM 41.0 °F 39.0 °F 39.2 °F 93% 30.26 in 10.0 mi WSW 3.5 mph - N/A   Overcast
11:55 PM 41.0 °F - 39.2 °F 93% 30.26 in 10.0 mi Calm Calm - N/A   Overcast