Weather History for Spearfish, SD

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Week of December 15, 2013 through December 21, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 40 °F 21 °F
Mean Temperature 44 °F 29 °F 10 °F
Min Temperature 41 °F 17 °F -7 °F
Degree Days  
Heating Degree Days (base 65) 56 36 20 253
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 28 °F 16 °F -13 °F
Precipitation  
Precipitation 1.33 in 0.25 in 0.00 in 1.75 in
Snowdepth - - - -
Wind  
Wind 25 mph 10 mph 0 mph
Gust Wind 34 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.24 in 29.87 in 29.56 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Dec. 16, 2013 Rise Set
Actual Time 8:25 AM CST 5:16 PM CST
Civil Twilight 7:52 AM CST 5:49 PM CST
Nautical Twilight 7:15 AM CST 6:26 PM CST
Astronomical Twilight 6:39 AM CST 7:02 PM CST
Moon 5:10 PM CST (12/16) 7:33 AM CST (12/16)
Length of Visible Light 9h 57m
Length of Day
8h 50m
Full, 100% of the Moon is Illuminated
Dec 16
Full
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
15 48 44 41 25 23 19 53 42 37 30.00 29.92 29.89 10 10 10 24 16 30 0.00  
16 46 38 30 28 25 19 87 65 34 30.16 30.03 29.90 10 10 10 22 11 34 0.00  
17 55 39 23 25 21 18 93 56 24 30.24 30.05 29.80 10 10 10 24 11 30 0.00  
18 57 42 28 27 21 18 93 44 23 29.81 29.76 29.71 10 10 10 24 13 31 0.00  
19 28 13 -4 27 10 -8 100 91 78 30.02 29.88 29.75 10 4 0 25 13 29 1.33 Fog , Snow
20 26 10 -7 16 1 -13 92 68 40 29.92 29.72 29.59 10 10 10 10 4 - 0.00  
21 21 16 10 16 9 1 93 75 46 29.89 29.70 29.56 10 9 2 15 4 21 0.42 Snow