Weather History for Spearfish, SD

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Sunday, July 21, 2013

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 73 °F -  
Max Temperature 89 °F 86 °F 104 °F (1960)
Min Temperature 57 °F 56 °F 41 °F (1988)
Cooling Degree Days 8    
Growing Degree Days 23 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 54    
Maximum Humidity 88    
Minimum Humidity 18    
Precipitation  
Precipitation 0.01 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 4 mph (NNW)    
Max Wind Speed 10 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events Rain , Thunderstorm    
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

Jul. 21, 2013 Rise Set
Actual Time 6:30 AM CDT 9:31 PM CDT
Civil Twilight 5:55 AM CDT 10:06 PM CDT
Nautical Twilight 5:11 AM CDT 10:50 PM CDT
Astronomical Twilight 4:18 AM CDT 11:43 PM CDT
Moon 8:30 PM CDT (7/21) 5:20 AM CDT (7/21)
Length of Visible Light 16h 10m
Length of Day
15h 01m
Waxing Gibbous, 98% of the Moon is Illuminated
Jul 21
Waxing Gibbous
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter

Hourly Weather History & Observations

Time (CDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 62.6 °F - 59.0 °F 88% 30.00 in 10.0 mi Calm Calm - 0.01 in Rain , Thunderstorm Light Thunderstorms and Rain
12:35 AM 62.6 °F - 59.0 °F 88% 29.99 in 10.0 mi SE 4.6 mph - 0.01 in Thunderstorm Unknown
12:55 AM 64.4 °F - 59.0 °F 83% 29.98 in 10.0 mi ESE 6.9 mph - 0.01 in Thunderstorm Unknown
1:15 AM 64.4 °F - 59.0 °F 83% 29.97 in 10.0 mi East 8.1 mph - N/A   Unknown
1:35 AM 66.2 °F - 59.0 °F 78% 29.95 in 10.0 mi ENE 4.6 mph - N/A   Unknown
1:55 AM 66.2 °F - 59.0 °F 78% 29.95 in 10.0 mi North 5.8 mph - N/A   Unknown
2:15 AM 66.2 °F - 57.2 °F 73% 29.94 in 10.0 mi SSW 9.2 mph - N/A   Unknown
2:35 AM 66.2 °F - 57.2 °F 73% 29.93 in 10.0 mi NNE 6.9 mph - N/A   Unknown
2:55 AM 66.2 °F - 55.4 °F 68% 29.93 in 10.0 mi WSW 5.8 mph - N/A   Unknown
3:15 AM 68.0 °F - 55.4 °F 64% 29.93 in 10.0 mi Calm Calm - N/A   Unknown
3:35 AM 66.2 °F - 55.4 °F 68% 29.92 in 10.0 mi NNE 4.6 mph - N/A   Unknown
3:55 AM 66.2 °F - 53.6 °F 64% 29.91 in 10.0 mi Calm Calm - N/A Thunderstorm Unknown
4:15 AM 66.2 °F - 53.6 °F 64% 29.91 in 10.0 mi Calm Calm - N/A   Unknown
4:35 AM 64.4 °F - 55.4 °F 73% 29.91 in 10.0 mi Calm Calm - N/A   Unknown
4:55 AM 60.8 °F - 53.6 °F 77% 29.91 in 10.0 mi SW 4.6 mph - N/A   Unknown
5:15 AM 59.0 °F - 53.6 °F 82% 29.91 in 10.0 mi SW 4.6 mph - N/A   Unknown
5:35 AM 59.0 °F - 55.4 °F 88% 29.91 in 10.0 mi West 3.5 mph - N/A   Unknown
5:55 AM 57.2 °F - 53.6 °F 88% 29.90 in 10.0 mi SSW 3.5 mph - N/A   Unknown
6:15 AM 59.0 °F - 53.6 °F 82% 29.90 in 10.0 mi SSW 3.5 mph - N/A   Unknown
6:35 AM 59.0 °F - 53.6 °F 82% 29.90 in 10.0 mi SSW 6.9 mph - N/A   Unknown
6:55 AM 60.8 °F - 55.4 °F 82% 29.90 in 10.0 mi Calm Calm - N/A   Unknown
7:15 AM 62.6 °F - 55.4 °F 77% 29.91 in 10.0 mi Calm Calm - N/A   Unknown
7:35 AM 66.2 °F - 57.2 °F 73% 29.91 in 10.0 mi SSW 3.5 mph - N/A   Unknown
7:55 AM 68.0 °F - 55.4 °F 64% 29.91 in 10.0 mi Calm Calm - N/A   Unknown
8:15 AM 69.8 °F - 57.2 °F 64% 29.91 in 10.0 mi Calm Calm - N/A   Unknown
8:35 AM 71.6 °F - 57.2 °F 60% 29.91 in 10.0 mi Calm Calm - N/A   Unknown
8:55 AM 73.4 °F - 57.2 °F 57% 29.91 in 10.0 mi Calm Calm - N/A   Unknown
9:15 AM 73.4 °F - 55.4 °F 53% 29.91 in 10.0 mi Calm Calm - N/A   Unknown
9:35 AM 75.2 °F - 57.2 °F 53% 29.91 in 10.0 mi Calm Calm - N/A   Unknown
9:55 AM 73.4 °F - 62.6 °F 69% 29.91 in 10.0 mi NW 8.1 mph - N/A   Unknown
10:15 AM 75.2 °F - 62.6 °F 65% 29.91 in 10.0 mi NW 5.8 mph - N/A   Unknown
10:35 AM 75.2 °F - 55.4 °F 50% 29.91 in 10.0 mi WNW 4.6 mph - N/A   Unknown
10:55 AM 77.0 °F - 59.0 °F 54% 29.90 in 10.0 mi Calm Calm - N/A   Unknown
11:15 AM 77.0 °F - 60.8 °F 57% 29.90 in 10.0 mi NE 3.5 mph - N/A   Unknown
11:35 AM 78.8 °F - 60.8 °F 54% 29.90 in 10.0 mi ENE 3.5 mph - N/A   Unknown
12:35 PM 80.6 °F 81.1 °F 59.0 °F 48% 29.89 in 10.0 mi ENE 6.9 mph - N/A   Unknown
12:55 PM 82.4 °F 82.5 °F 59.0 °F 45% 29.89 in 10.0 mi NE 5.8 mph - N/A   Unknown
1:15 PM 82.4 °F 82.0 °F 57.2 °F 42% 29.88 in 10.0 mi ENE 5.8 mph - N/A   Unknown
1:35 PM 82.4 °F 82.5 °F 59.0 °F 45% 29.88 in 10.0 mi ENE 4.6 mph - N/A   Unknown
1:55 PM 82.4 °F 82.5 °F 59.0 °F 45% 29.88 in 10.0 mi ENE 4.6 mph - N/A   Unknown
2:15 PM 82.4 °F 82.9 °F 60.8 °F 48% 29.87 in 10.0 mi ENE 4.6 mph - N/A   Unknown
2:35 PM 84.2 °F 84.4 °F 60.8 °F 45% 29.87 in 10.0 mi Calm Calm - N/A   Unknown
2:55 PM 84.2 °F 83.8 °F 59.0 °F 42% 29.87 in 10.0 mi NNW 3.5 mph - N/A   Unknown
3:15 PM 86.0 °F 84.9 °F 57.2 °F 37% 29.86 in 10.0 mi Calm Calm - N/A Rain Light Rain
3:35 PM 87.8 °F - 39.2 °F 18% 29.86 in 10.0 mi NNE 3.5 mph - N/A   Unknown
3:55 PM 87.8 °F - 48.2 °F 25% 29.86 in 10.0 mi North 9.2 mph - N/A   Unknown
4:15 PM 87.8 °F - 50.0 °F 27% 29.85 in 10.0 mi NNW 5.8 mph - N/A   Unknown
4:35 PM 87.8 °F - 50.0 °F 27% 29.85 in 10.0 mi NW 3.5 mph - N/A   Unknown
4:55 PM 89.6 °F - 46.4 °F 22% 29.85 in 10.0 mi NW 5.8 mph - N/A   Unknown
5:15 PM 89.6 °F - 46.4 °F 22% 29.85 in 10.0 mi WNW 9.2 mph - N/A   Unknown
5:35 PM 89.6 °F - 46.4 °F 22% 29.84 in 10.0 mi WNW 4.6 mph - N/A   Unknown
5:55 PM 89.6 °F - 48.2 °F 24% 29.84 in 10.0 mi NW 9.2 mph - N/A   Unknown
6:15 PM 89.6 °F - 46.4 °F 22% 29.83 in 10.0 mi NW 5.8 mph - N/A   Unknown
6:35 PM 84.2 °F - 50.0 °F 30% 29.84 in 10.0 mi NW 5.8 mph - N/A   Unknown
6:55 PM 86.0 °F - 50.0 °F 29% 29.84 in 10.0 mi NW 5.8 mph - N/A   Unknown
7:15 PM 86.0 °F 84.2 °F 53.6 °F 33% 29.84 in 10.0 mi NW 4.6 mph - N/A   Unknown
7:35 PM 86.0 °F 84.2 °F 53.6 °F 33% 29.84 in 10.0 mi WNW 4.6 mph - N/A   Unknown
7:55 PM 84.2 °F 82.8 °F 53.6 °F 35% 29.84 in 10.0 mi NW 3.5 mph - N/A   Unknown
8:15 PM 82.4 °F 81.4 °F 53.6 °F 37% 29.85 in 10.0 mi Calm Calm - N/A   Unknown
8:35 PM 75.2 °F - 59.0 °F 57% 29.86 in 10.0 mi SSW 5.8 mph - N/A   Unknown
8:55 PM 75.2 °F - 55.4 °F 50% 29.87 in 10.0 mi North 9.2 mph - N/A   Unknown
9:15 PM 80.6 °F - 51.8 °F 37% 29.88 in 10.0 mi North 6.9 mph - N/A   Unknown
9:35 PM 82.4 °F - 44.6 °F 26% 29.91 in 10.0 mi NNW 10.4 mph 18.4 mph N/A   Unknown
9:55 PM 77.0 °F - 48.2 °F 36% 29.92 in 10.0 mi North 9.2 mph - N/A   Unknown
10:15 PM 75.2 °F - 48.2 °F 38% 29.93 in 10.0 mi Calm Calm - N/A   Unknown
10:35 PM 69.8 °F - 53.6 °F 56% 29.94 in 10.0 mi SW 5.8 mph - N/A   Unknown
10:55 PM 73.4 °F - 50.0 °F 44% 29.95 in 10.0 mi Calm Calm - N/A   Unknown
11:15 PM 71.6 °F - 48.2 °F 43% 29.96 in 10.0 mi Calm Calm - N/A   Unknown
11:35 PM 69.8 °F - 50.0 °F 49% 29.97 in 10.0 mi Calm Calm - N/A   Unknown
11:55 PM 69.8 °F - 50.0 °F 49% 29.98 in 10.0 mi Calm Calm - N/A   Unknown