Weather History for Yankton, SD

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Tuesday, December 20, 2011

  Actual Average Record
Temperature  
Mean Temperature 24 °F -  
Max Temperature 35 °F 29 °F 54 °F (1979)
Min Temperature 12 °F 10 °F -19 °F (1989)
Degree Days  
Heating Degree Days 42    
Moisture  
Dew Point 16 °F    
Average Humidity 73    
Maximum Humidity 93    
Minimum Humidity 48    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 5 mph (South)    
Max Wind Speed 13 mph    
Max Gust Speed 16 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

Dec. 20, 2011 Rise Set
Actual Time 7:56 AM CST 4:57 PM CST
Civil Twilight 7:24 AM CST 5:29 PM CST
Nautical Twilight 6:48 AM CST 6:05 PM CST
Astronomical Twilight 6:13 AM CST 6:40 PM CST
Moon 3:15 AM CST (12/20) 1:37 PM CST (12/20)
Length of Visible Light 10h 05m
Length of Day
9h 00m
Waning Crescent, 21% of the Moon is Illuminated
Dec 20
Waning Crescent
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:35 AM 19.4 °F 11.5 °F 15.8 °F 86% 30.25 in 10.0 mi NW 5.8 mph - N/A   Clear
12:55 AM 19.4 °F - 14.0 °F 80% 30.25 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 21.2 °F - 15.8 °F 80% 30.25 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 19.4 °F - 15.8 °F 86% 30.24 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 19.4 °F 14.3 °F 14.0 °F 80% 30.23 in 10.0 mi SW 3.5 mph - N/A   Clear
2:15 AM 17.6 °F 12.3 °F 14.0 °F 86% 30.23 in 10.0 mi SW 3.5 mph - N/A   Clear
2:35 AM 17.6 °F - 14.0 °F 86% 30.22 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 19.4 °F - 15.8 °F 86% 30.21 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 15.8 °F 8.6 °F 10.4 °F 79% 30.20 in 10.0 mi NW 4.6 mph - N/A   Clear
3:35 AM 14.0 °F 6.5 °F 10.4 °F 86% 30.19 in 10.0 mi NW 4.6 mph - N/A   Clear
4:15 AM 12.2 °F 2.9 °F 10.4 °F 92% 30.17 in 10.0 mi NNW 5.8 mph - N/A   Clear
4:35 AM 12.2 °F 2.9 °F 10.4 °F 92% 30.16 in 10.0 mi NW 5.8 mph - N/A   Clear
4:55 AM 12.2 °F 0.7 °F 10.4 °F 92% 30.15 in 10.0 mi NW 8.1 mph - N/A   Clear
5:15 AM 14.0 °F 3.9 °F 10.4 °F 86% 30.16 in 10.0 mi NW 6.9 mph - N/A   Clear
5:35 AM 14.0 °F 2.0 °F 10.4 °F 86% 30.16 in 10.0 mi NW 9.2 mph - N/A   Clear
6:15 AM 15.8 °F - 12.2 °F 86% 30.15 in 10.0 mi Calm Calm - N/A   Clear
6:55 AM 15.8 °F - 10.4 °F 79% 30.13 in 10.0 mi Calm Calm - N/A   Clear
7:15 AM 15.8 °F - 12.2 °F 86% 30.12 in 10.0 mi Calm Calm - N/A   Clear
7:35 AM 15.8 °F - 12.2 °F 86% 30.12 in 10.0 mi Calm Calm - N/A   Clear
7:55 AM 15.8 °F 10.2 °F 12.2 °F 86% 30.11 in 10.0 mi South 3.5 mph - N/A   Clear
8:15 AM 15.8 °F 8.6 °F 12.2 °F 86% 30.10 in 10.0 mi South 4.6 mph - N/A   Clear
8:35 AM 15.8 °F 10.2 °F 14.0 °F 93% 30.09 in 10.0 mi SSW 3.5 mph - N/A   Clear
8:55 AM 17.6 °F - 15.8 °F 93% 30.09 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 19.4 °F 14.3 °F 15.8 °F 86% 30.08 in 10.0 mi SSE 3.5 mph - N/A   Clear
9:55 AM 19.4 °F 14.3 °F 15.8 °F 86% 30.08 in 10.0 mi SE 3.5 mph - N/A   Clear
10:15 AM 21.2 °F 16.4 °F 19.4 °F 93% 30.07 in 10.0 mi SSE 3.5 mph - N/A   Clear
10:35 AM 23.0 °F 17.0 °F 19.4 °F 86% 30.06 in 10.0 mi SSE 4.6 mph - N/A   Clear
10:55 AM 24.8 °F 17.9 °F 19.4 °F 80% 30.04 in 10.0 mi SSE 5.8 mph - N/A   Clear
11:55 AM 28.4 °F 20.4 °F 21.2 °F 74% 29.98 in 10.0 mi South 8.1 mph - N/A   Clear
12:15 PM 30.2 °F 24.3 °F 19.4 °F 64% 29.96 in 10.0 mi SSW 5.8 mph - N/A   Clear
12:35 PM 30.2 °F 25.4 °F 19.4 °F 64% 29.95 in 10.0 mi South 4.6 mph - N/A   Clear
12:55 PM 32.0 °F 24.8 °F 19.4 °F 60% 29.93 in 10.0 mi SSE 8.1 mph - N/A   Clear
1:15 PM 33.8 °F 26.4 °F 21.2 °F 60% 29.91 in 10.0 mi South 9.2 mph - N/A   Clear
1:35 PM 33.8 °F 24.8 °F 21.2 °F 60% 29.90 in 10.0 mi SSE 12.7 mph - N/A   Clear
1:55 PM 33.8 °F 25.3 °F 19.4 °F 56% 29.88 in 10.0 mi South 11.5 mph - N/A   Clear
2:15 PM 35.6 °F 28.0 °F 17.6 °F 48% 29.87 in 10.0 mi South 10.4 mph - N/A   Clear
2:35 PM 35.6 °F 27.1 °F 17.6 °F 48% 29.86 in 10.0 mi South 12.7 mph - N/A   Clear
2:55 PM 35.6 °F 28.6 °F 17.6 °F 48% 29.85 in 10.0 mi South 9.2 mph - N/A   Clear
3:15 PM 35.6 °F 27.5 °F 17.6 °F 48% 29.84 in 10.0 mi South 11.5 mph - N/A   Clear
3:35 PM 35.6 °F 27.5 °F 17.6 °F 48% 29.83 in 10.0 mi South 11.5 mph 16.1 mph N/A   Clear
3:55 PM 35.6 °F 29.2 °F 17.6 °F 48% 29.82 in 10.0 mi South 8.1 mph - N/A   Clear
4:35 PM 33.8 °F 25.8 °F 17.6 °F 52% 29.80 in 10.0 mi SSE 10.4 mph - N/A   Clear
4:55 PM 30.2 °F 21.9 °F 17.6 °F 60% 29.80 in 10.0 mi SSE 9.2 mph - N/A   Clear
5:15 PM 30.2 °F 21.3 °F 17.6 °F 60% 29.79 in 10.0 mi SSE 10.4 mph - N/A   Clear
5:55 PM 28.4 °F 20.4 °F 15.8 °F 59% 29.78 in 10.0 mi SSE 8.1 mph - N/A   Clear
6:15 PM 28.4 °F 19.1 °F 15.8 °F 59% 29.77 in 10.0 mi SSE 10.4 mph - N/A   Clear
6:35 PM 26.6 °F 17.5 °F 17.6 °F 69% 29.77 in 10.0 mi SSE 9.2 mph - N/A   Clear
7:15 PM 26.6 °F 17.5 °F 17.6 °F 69% 29.76 in 10.0 mi South 9.2 mph - N/A   Clear
7:35 PM 26.6 °F 18.2 °F 17.6 °F 69% 29.76 in 10.0 mi South 8.1 mph - N/A   Clear
7:55 PM 26.6 °F 20.0 °F 15.8 °F 64% 29.76 in 10.0 mi South 5.8 mph - N/A   Clear
8:15 PM 26.6 °F 20.0 °F 17.6 °F 69% 29.75 in 10.0 mi SSW 5.8 mph - N/A   Clear
8:35 PM 26.6 °F 19.1 °F 17.6 °F 69% 29.75 in 10.0 mi SSW 6.9 mph - N/A   Clear
8:55 PM 26.6 °F 17.5 °F 17.6 °F 69% 29.74 in 10.0 mi South 9.2 mph - N/A   Clear
9:35 PM 26.6 °F 18.2 °F 15.8 °F 64% 29.73 in 10.0 mi South 8.1 mph - N/A   Clear
9:55 PM 26.6 °F 16.8 °F 17.6 °F 69% 29.72 in 10.0 mi South 10.4 mph - N/A   Clear
10:15 PM 26.6 °F 19.1 °F 15.8 °F 64% 29.71 in 10.0 mi South 6.9 mph - N/A   Clear
10:35 PM 24.8 °F 15.3 °F 15.8 °F 69% 29.70 in 10.0 mi SSE 9.2 mph - N/A   Clear
10:55 PM 23.0 °F 14.7 °F 15.8 °F 74% 29.69 in 10.0 mi SSE 6.9 mph - N/A   Clear
11:15 PM 24.8 °F 19.1 °F 17.6 °F 74% 29.69 in 10.0 mi SE 4.6 mph - N/A   Clear
11:35 PM 26.6 °F 18.2 °F 15.8 °F 64% 29.68 in 10.0 mi South 8.1 mph - N/A   Clear
11:55 PM 28.4 °F 20.4 °F 15.8 °F 59% 29.67 in 10.0 mi South 8.1 mph - N/A   Clear