Weather History for Spearfish, SD

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Sunday, May 18, 2014

  Actual Average (KEFC) Record (KEFC)
Temperature  
Mean Temperature 57 °F -  
Max Temperature 73 °F 73 °F 95 °F (1948)
Min Temperature 41 °F 43 °F 34 °F (1952)
Degree Days  
Heating Degree Days 8    
Growing Degree Days 7 (Base 50)    
Moisture  
Dew Point 44 °F    
Average Humidity 60    
Maximum Humidity 87    
Minimum Humidity 25    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.72 in    
Wind  
Wind Speed 5 mph (SE)    
Max Wind Speed 24 mph    
Max Gust Speed 34 mph    
Visibility 10 miles    
Events 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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Astronomy

May. 18, 2014 Rise Set
Actual Time 6:24 AM CDT 9:19 PM CDT
Civil Twilight 5:50 AM CDT 9:53 PM CDT
Nautical Twilight 5:06 AM CDT 10:37 PM CDT
Astronomical Twilight 4:15 AM CDT 11:28 PM CDT
Moon 12:19 AM CDT (5/18) 10:17 AM CDT (5/18)
Length of Visible Light 16h 03m
Length of Day
14h 54m
Waning Gibbous, 81% of the Moon is Illuminated
May 18
Waning Gibbous
May 21
Last Quarter
May 28
New
Jun 5
First Quarter
Jun 12
Full

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 - 39.2 °F 76% 29.92 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 50.0 °F - 39.2 °F 66% 29.91 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 50.0 °F - 41.0 °F 71% 29.91 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 53.6 °F - 39.2 °F 58% 29.90 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 53.6 °F - 41.0 °F 62% 29.90 in 10.0 mi WSW 5.8 mph - N/A   Clear
1:55 AM 50.0 °F - 39.2 °F 66% 29.89 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 50.0 °F - 39.2 °F 66% 29.89 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 46.4 °F 45.2 °F 39.2 °F 76% 29.88 in 10.0 mi NE 3.5 mph - N/A   Clear
2:55 AM 48.2 °F - 39.2 °F 71% 29.88 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 46.4 °F 44.3 °F 39.2 °F 76% 29.87 in 10.0 mi NE 4.6 mph - N/A   Clear
3:35 AM 46.4 °F - 39.2 °F 76% 29.86 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 46.4 °F 44.3 °F 39.2 °F 76% 29.86 in 10.0 mi ENE 4.6 mph - N/A   Clear
4:15 AM 46.4 °F 45.2 °F 39.2 °F 76% 29.85 in 10.0 mi NE 3.5 mph - N/A   Clear
4:35 AM 46.4 °F 45.2 °F 39.2 °F 76% 29.84 in 10.0 mi East 3.5 mph - N/A   Clear
4:55 AM 46.4 °F 45.2 °F 39.2 °F 76% 29.83 in 10.0 mi East 3.5 mph - N/A   Clear
5:15 AM 48.2 °F - 39.2 °F 71% 29.81 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 48.2 °F - 39.2 °F 71% 29.81 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 41.0 °F - 37.4 °F 87% 29.81 in 10.0 mi Calm Calm - N/A   Clear
6:15 AM 46.4 °F 45.2 °F 39.2 °F 76% 29.81 in 10.0 mi WNW 3.5 mph - N/A   Clear
6:35 AM 42.8 °F 41.1 °F 39.2 °F 87% 29.81 in 10.0 mi West 3.5 mph - N/A   Clear
6:55 AM 44.6 °F 43.1 °F 39.2 °F 81% 29.81 in 10.0 mi WSW 3.5 mph - N/A   Clear
7:15 AM 46.4 °F 42.4 °F 41.0 °F 81% 29.81 in 10.0 mi WSW 8.1 mph - N/A   Clear
7:55 AM 50.0 °F - 42.8 °F 76% 29.82 in 10.0 mi WNW 6.9 mph - N/A   Clear
8:15 AM 50.0 °F - 44.6 °F 82% 29.82 in 10.0 mi WNW 5.8 mph - N/A   Clear
8:35 AM 51.8 °F - 44.6 °F 76% 29.82 in 10.0 mi WNW 4.6 mph - N/A   Clear
8:55 AM 53.6 °F - 44.6 °F 72% 29.82 in 10.0 mi NW 9.2 mph - N/A   Clear
9:15 AM 50.0 °F - 44.6 °F 82% 29.81 in 10.0 mi NW 11.5 mph - N/A   Clear
9:35 AM 50.0 °F - 44.6 °F 82% 29.81 in 10.0 mi NW 8.1 mph - N/A   Clear
9:55 AM 51.8 °F - 44.6 °F 76% 29.80 in 10.0 mi WNW 6.9 mph - N/A   Clear
10:15 AM 53.6 °F - 44.6 °F 72% 29.79 in 10.0 mi West 4.6 mph - N/A   Clear
10:35 AM 55.4 °F - 46.4 °F 72% 29.78 in 10.0 mi West 3.5 mph - N/A   Clear
10:55 AM 57.2 °F - 46.4 °F 67% 29.77 in 10.0 mi Calm Calm - N/A   Clear
11:15 AM 59.0 °F - 46.4 °F 63% 29.77 in 10.0 mi Calm Calm - N/A   Clear
11:35 AM 59.0 °F - 48.2 °F 67% 29.77 in 10.0 mi ENE 6.9 mph - N/A   Clear
11:55 AM 59.0 °F - 48.2 °F 67% 29.76 in 10.0 mi NE 8.1 mph - N/A   Clear
12:15 PM 59.0 °F - 48.2 °F 67% 29.75 in 10.0 mi ENE 8.1 mph - N/A   Clear
12:35 PM 62.6 °F - 48.2 °F 59% 29.74 in 10.0 mi East 8.1 mph - N/A   Clear
12:55 PM 64.4 °F - 50.0 °F 59% 29.73 in 10.0 mi ESE 5.8 mph - N/A   Clear
1:15 PM 64.4 °F - 50.0 °F 59% 29.72 in 10.0 mi East 8.1 mph - N/A   Clear
1:35 PM 64.4 °F - 50.0 °F 59% 29.71 in 10.0 mi ENE 5.8 mph - N/A   Clear
1:55 PM 66.2 °F - 51.8 °F 60% 29.70 in 10.0 mi East 10.4 mph - N/A   Clear
2:15 PM 68.0 °F - 51.8 °F 56% 29.70 in 10.0 mi East 8.1 mph - N/A   Clear
2:35 PM 69.8 °F - 53.6 °F 56% 29.69 in 10.0 mi East 6.9 mph - N/A   Clear
2:55 PM 69.8 °F - 53.6 °F 56% 29.68 in 10.0 mi East 10.4 mph - N/A   Clear
3:15 PM 71.6 °F - 53.6 °F 53% 29.67 in 10.0 mi East 8.1 mph - N/A   Clear
3:35 PM 71.6 °F - 53.6 °F 53% 29.66 in 10.0 mi ESE 9.2 mph - N/A   Clear
3:55 PM 71.6 °F - 53.6 °F 53% 29.65 in 10.0 mi East 9.2 mph - N/A   Clear
4:15 PM 71.6 °F - 53.6 °F 53% 29.64 in 10.0 mi East 9.2 mph - N/A   Clear
4:35 PM 71.6 °F - 55.4 °F 57% 29.63 in 10.0 mi East 11.5 mph - N/A   Clear
4:55 PM 71.6 °F - 55.4 °F 57% 29.62 in 10.0 mi East 10.4 mph - N/A   Clear
5:15 PM 69.8 °F - 53.6 °F 56% 29.61 in 10.0 mi East 12.7 mph - N/A   Clear
5:35 PM 68.0 °F - 53.6 °F 60% 29.61 in 10.0 mi East 13.8 mph - N/A   Clear
5:55 PM 68.0 °F - 55.4 °F 64% 29.61 in 10.0 mi East 9.2 mph - N/A   Clear
6:15 PM 68.0 °F - 55.4 °F 64% 29.59 in 10.0 mi ESE 8.1 mph - N/A   Clear
6:35 PM 68.0 °F - 55.4 °F 64% 29.61 in 10.0 mi WSW 6.9 mph - N/A   Clear
6:55 PM 68.0 °F - 55.4 °F 64% 29.62 in 10.0 mi West 3.5 mph - N/A   Clear
7:15 PM 69.8 °F - 37.4 °F 31% 29.62 in 10.0 mi SW 12.7 mph 19.6 mph N/A   Clear
7:35 PM 73.4 °F - 37.4 °F 27% 29.58 in 10.0 mi South 20.7 mph 34.5 mph N/A   Clear
7:55 PM 71.6 °F - 33.8 °F 25% 29.58 in 10.0 mi South 24.2 mph 27.6 mph N/A   Clear
8:15 PM 71.6 °F - 35.6 °F 27% 29.56 in 10.0 mi South 15.0 mph 25.3 mph N/A   Clear
8:35 PM 69.8 °F - 35.6 °F 28% 29.54 in 10.0 mi South 19.6 mph 28.8 mph N/A   Clear
8:55 PM 68.0 °F - 35.6 °F 30% 29.53 in 10.0 mi South 21.9 mph 27.6 mph N/A   Clear
9:15 PM 69.8 °F - 33.8 °F 27% 29.53 in 10.0 mi South 24.2 mph 32.2 mph N/A   Clear
9:35 PM 68.0 °F - 33.8 °F 28% 29.51 in 10.0 mi South 24.2 mph 29.9 mph N/A   Clear
9:55 PM 68.0 °F - 35.6 °F 30% 29.53 in 10.0 mi South 16.1 mph 25.3 mph N/A   Clear
10:15 PM 68.0 °F - 37.4 °F 33% 29.54 in 10.0 mi South 18.4 mph 24.2 mph N/A Thunderstorm Clear
10:35 PM 68.0 °F - 39.2 °F 35% 29.54 in 10.0 mi South 15.0 mph - N/A   Clear
10:55 PM 68.0 °F - 41.0 °F 37% 29.54 in 10.0 mi SSW 17.3 mph 25.3 mph N/A   Clear
11:15 PM 69.8 °F - 44.6 °F 40% 29.54 in 10.0 mi SSW 18.4 mph 25.3 mph N/A   Clear
11:35 PM 69.8 °F - 44.6 °F 40% 29.55 in 10.0 mi SSW 16.1 mph 23.0 mph N/A   Clear
11:55 PM 66.2 °F - 46.4 °F 49% 29.59 in 10.0 mi NW 17.3 mph 26.5 mph N/A   Clear