Weather History for Sioux City, IA

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Thursday, December 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 17 °F 21 °F  
Max Temperature 23 °F 31 °F 56 °F (1894)
Min Temperature 11 °F 12 °F -17 °F (1961)
Degree Days  
Heating Degree Days 48 44  
Month to date heating degree days 639 826  
Since 1 July heating degree days 2111 2302  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1249 869  
Moisture  
Dew Point 14 °F    
Average Humidity 82    
Maximum Humidity 93    
Minimum Humidity 67    
Precipitation  
Precipitation 0.08 in 0.03 in 0.62 in (1920)
Month to date precipitation 1.34 0.56  
Year to date precipitation 23.79 27.50  
Snow  
Snow 1.10 in 0.20 in 5.50 in (1897)
Month to date snowfall 4.2 5.2  
Since 1 July snowfall 4.3 10.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 20 mph (NNW)    
Max Wind Speed 35 mph    
Max Gust Speed 41 mph    
Visibility 6 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 20, 2012 Rise Set
Actual Time 7:51 AM CST 4:55 PM CST
Civil Twilight 7:19 AM CST 5:27 PM CST
Nautical Twilight 6:43 AM CST 6:03 PM CST
Astronomical Twilight 6:09 AM CST 6:37 PM CST
Moon 12:20 PM CST (12/20) 12:32 AM CST (12/20)
Length of Visible Light 10h 08m
Length of Day
9h 04m
First Quarter, 55% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:26 AM 21.2 °F 4.5 °F 19.4 °F 93% 29.92 in 1.0 mi NNW 24.2 mph - 0.01 in   Mist
12:52 AM 21.9 °F 6.2 °F 19.0 °F 89% 29.96 in 1.0 mi NNW 21.9 mph - 0.02 in   Mist
1:31 AM 21.2 °F 6.4 °F 17.6 °F 86% 29.91 in 1.2 mi NNW 18.4 mph 27.6 mph 0.01 in   Overcast
1:52 AM 21.0 °F 4.3 °F 18.0 °F 88% 29.94 in 2.0 mi NNW 24.2 mph 29.9 mph 0.01 in   Overcast
2:14 AM 21.2 °F 5.2 °F 17.6 °F 86% 29.91 in 2.5 mi NNW 21.9 mph 28.8 mph 0.01 in   Overcast
2:21 AM 21.2 °F 4.2 °F 17.6 °F 86% 29.90 in 3.0 mi NNW 25.3 mph 31.1 mph 0.01 in   Overcast
2:52 AM 19.9 °F 2.5 °F 16.0 °F 85% 29.95 in 6.0 mi NNW 25.3 mph - 0.01 in   Overcast
3:43 AM 19.4 °F 2.5 °F 15.8 °F 86% 29.91 in 8.0 mi NNW 23.0 mph 29.9 mph N/A   Overcast
3:52 AM 19.9 °F 3.2 °F 16.0 °F 85% 29.96 in 8.0 mi NNW 23.0 mph 31.1 mph N/A   Overcast
4:52 AM 19.9 °F 2.8 °F 15.1 °F 81% 29.97 in 8.0 mi NNW 24.2 mph - N/A   Overcast
5:31 AM 17.6 °F -1.0 °F 14.0 °F 86% 29.94 in 6.0 mi NNW 26.5 mph - N/A   Overcast
5:52 AM 17.1 °F -1.0 °F 12.9 °F 84% 30.00 in 5.0 mi NNW 24.2 mph - N/A   Overcast
6:52 AM 18.0 °F 0.2 °F 14.0 °F 84% 30.02 in 4.0 mi NNW 24.2 mph - N/A   Overcast
7:52 AM 18.0 °F 1.7 °F 14.0 °F 84% 30.04 in 9.0 mi NNW 19.6 mph 31.1 mph N/A   Overcast
8:52 AM 19.0 °F 1.0 °F 15.1 °F 85% 30.04 in 4.0 mi NNW 26.5 mph 32.2 mph N/A   Overcast
9:28 AM 19.4 °F 0.8 °F 15.8 °F 86% 30.01 in 2.0 mi NW 28.8 mph 33.4 mph N/A   Overcast
9:52 AM 19.0 °F 0.6 °F 15.1 °F 85% 30.07 in 2.5 mi NW 27.6 mph 35.7 mph N/A   Overcast
10:29 AM 19.4 °F 1.4 °F 15.8 °F 86% 30.04 in 3.0 mi NW 26.5 mph 34.5 mph N/A   Overcast
10:52 AM 19.0 °F 1.0 °F 15.1 °F 85% 30.10 in 3.0 mi NNW 26.5 mph 34.5 mph N/A   Overcast
11:52 AM 19.0 °F -0.5 °F 14.0 °F 81% 30.09 in 3.0 mi NNW 32.2 mph 36.8 mph 0.00 in   Overcast
12:52 PM 19.0 °F 1.6 °F 12.9 °F 77% 30.10 in 5.0 mi NNW 24.2 mph 35.7 mph N/A   Mostly Cloudy
1:52 PM 19.0 °F 2.7 °F 12.9 °F 77% 30.12 in 10.0 mi NW 20.7 mph 29.9 mph N/A   Overcast
2:35 PM 19.4 °F 2.5 °F 12.2 °F 74% 30.07 in 8.0 mi NW 23.0 mph 31.1 mph N/A   Scattered Clouds
2:52 PM 19.9 °F 4.3 °F 12.0 °F 71% 30.14 in 10.0 mi NW 19.6 mph 27.6 mph N/A   Clear
3:52 PM 19.9 °F 4.3 °F 12.9 °F 74% 30.14 in 10.0 mi NW 19.6 mph 31.1 mph N/A   Clear
4:52 PM 19.0 °F 3.2 °F 12.0 °F 74% 30.16 in 10.0 mi NW 19.6 mph 26.5 mph N/A   Clear
5:52 PM 17.1 °F 4.3 °F 10.9 °F 77% 30.19 in 10.0 mi NW 11.5 mph - N/A   Clear
6:52 PM 16.0 °F 2.9 °F 10.0 °F 77% 30.21 in 10.0 mi NNW 11.5 mph - N/A   Clear
7:52 PM 15.1 °F -0.1 °F 10.9 °F 84% 30.21 in 10.0 mi NNW 15.0 mph - N/A   Clear
8:52 PM 15.1 °F 3.3 °F 10.9 °F 84% 30.22 in 10.0 mi NW 9.2 mph - N/A   Clear
9:52 PM 14.0 °F 5.1 °F 10.0 °F 84% 30.24 in 10.0 mi WNW 5.8 mph - N/A   Clear
10:52 PM 12.9 °F 6.9 °F 9.0 °F 84% 30.27 in 10.0 mi NW 3.5 mph - N/A   Clear
11:52 PM 12.0 °F -0.4 °F 8.1 °F 84% 30.27 in 10.0 mi NW 9.2 mph - N/A   Clear