Weather History for Harlan, IA

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Thursday, December 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 20 °F -  
Max Temperature 28 °F 29 °F 58 °F (1967)
Min Temperature 12 °F 12 °F -18 °F (1983)
Degree Days  
Heating Degree Days 45    
Moisture  
Dew Point 17 °F    
Average Humidity 89    
Maximum Humidity 100    
Minimum Humidity 79    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 26 mph (NW)    
Max Wind Speed 37 mph    
Max Gust Speed 43 mph    
Visibility 9 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, 2012 Rise Set
Actual Time 7:44 AM CST 4:54 PM CST
Civil Twilight 7:12 AM CST 5:25 PM CST
Nautical Twilight 6:37 AM CST 6:00 PM CST
Astronomical Twilight 6:04 AM CST 6:34 PM CST
Moon 12:16 PM CST (12/20) 12:28 AM CST (12/20)
Length of Visible Light 10h 12m
Length of Day
9h 09m
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
12:15 AM 28.4 °F 13.0 °F 26.6 °F 93% 29.77 in - North 28.8 mph 39.1 mph N/A   Unknown
12:35 AM 28.4 °F 13.8 °F 26.6 °F 93% 29.78 in - North 25.3 mph 39.1 mph N/A   Unknown
12:55 AM 28.4 °F 13.5 °F 26.6 °F 93% 29.78 in - North 26.5 mph 38.0 mph N/A   Unknown
1:15 AM 28.4 °F 13.8 °F 26.6 °F 93% 29.78 in - North 25.3 mph 33.4 mph N/A   Overcast
1:35 AM 26.6 °F 11.7 °F 26.6 °F 100% 29.78 in - North 24.2 mph 36.8 mph N/A   Overcast
1:55 AM 26.6 °F 12.0 °F 26.6 °F 100% 29.77 in - North 23.0 mph 38.0 mph N/A   Overcast
2:15 AM 26.6 °F 11.4 °F 24.8 °F 93% 29.77 in - North 25.3 mph 33.4 mph N/A   Overcast
2:35 AM 24.8 °F 9.0 °F 24.8 °F 100% 29.76 in - North 25.3 mph 36.8 mph N/A   Overcast
2:55 AM 24.8 °F 10.0 °F 24.8 °F 100% 29.76 in - North 21.9 mph 33.4 mph N/A   Overcast
3:15 AM 24.8 °F 10.0 °F 23.0 °F 93% 29.77 in - North 21.9 mph 33.4 mph N/A   Overcast
3:35 AM 23.0 °F 7.2 °F 21.2 °F 93% 29.77 in - North 23.0 mph 33.4 mph N/A   Unknown
3:55 AM 23.0 °F 6.0 °F 21.2 °F 93% 29.78 in - North 27.6 mph 35.7 mph N/A   Unknown
4:15 AM 23.0 °F 6.0 °F 21.2 °F 93% 29.79 in - NNW 27.6 mph 34.5 mph N/A   Unknown
4:35 AM 21.2 °F 2.4 °F 21.2 °F 100% 29.79 in - North 32.2 mph 38.0 mph N/A   Overcast
4:55 AM - - - N/A% 29.79 in - NNW 29.9 mph 38.0 mph N/A   Unknown
5:15 AM - - - N/A% 29.80 in - NNW 29.9 mph - N/A   Unknown
5:55 AM 21.2 °F 3.0 °F 19.4 °F 93% 29.82 in - NNW 29.9 mph 36.8 mph N/A   Unknown
6:15 AM 21.2 °F 2.7 °F 19.4 °F 93% 29.84 in - NNW 31.1 mph 36.8 mph N/A   Overcast
6:35 AM 21.2 °F 2.4 °F 19.4 °F 93% 29.85 in - NNW 32.2 mph 40.3 mph N/A   Unknown
6:55 AM 21.2 °F 2.4 °F 19.4 °F 93% 29.85 in - NNW 32.2 mph 39.1 mph N/A   Unknown
7:15 AM 21.2 °F 1.4 °F 19.4 °F 93% 29.85 in - NNW 36.8 mph 41.4 mph N/A   Overcast
7:35 AM 19.4 °F -0.6 °F 19.4 °F 100% 29.86 in - NNW 34.5 mph 40.3 mph N/A   Unknown
7:55 AM 21.2 °F 2.4 °F 19.4 °F 93% 29.87 in - NNW 32.2 mph 39.1 mph N/A   Unknown
8:15 AM 21.2 °F 2.4 °F 19.4 °F 93% 29.88 in - NNW 32.2 mph 41.4 mph N/A   Overcast
8:35 AM 21.2 °F 3.0 °F 19.4 °F 93% 29.90 in - NNW 29.9 mph 36.8 mph N/A   Mostly Cloudy
8:55 AM 19.4 °F 0.2 °F 19.4 °F 100% 29.90 in - NNW 31.1 mph 36.8 mph N/A   Mostly Cloudy
9:15 AM 19.4 °F 0.5 °F 17.6 °F 93% 29.92 in - NNW 29.9 mph 38.0 mph N/A   Overcast
9:35 AM 19.4 °F 0.8 °F 19.4 °F 100% 29.92 in - NNW 28.8 mph 36.8 mph N/A   Overcast
9:55 AM 21.2 °F 3.5 °F 19.4 °F 93% 29.93 in - NNW 27.6 mph 40.3 mph N/A   Overcast
10:15 AM 21.2 °F 2.7 °F 19.4 °F 93% 29.94 in - NW 31.1 mph 35.7 mph N/A   Overcast
10:35 AM 19.4 °F 0.8 °F 17.6 °F 93% 29.95 in - NNW 28.8 mph - N/A   Overcast
10:55 AM 21.2 °F 2.2 °F 17.6 °F 86% 29.97 in - NNW 33.4 mph 40.3 mph N/A   Overcast
11:15 AM 21.2 °F 2.7 °F 19.4 °F 93% 29.97 in - NW 31.1 mph 36.8 mph N/A   Overcast
11:35 AM 21.2 °F 2.2 °F 17.6 °F 86% 29.97 in - NW 33.4 mph 40.3 mph N/A   Overcast
11:55 AM 21.2 °F 3.0 °F 17.6 °F 86% 29.97 in - NW 29.9 mph 40.3 mph N/A   Overcast
12:15 PM 21.2 °F 2.7 °F 17.6 °F 86% 29.98 in - NNW 31.1 mph 42.6 mph N/A   Mostly Cloudy
12:35 PM 21.2 °F 3.9 °F 17.6 °F 86% 29.98 in - NW 26.5 mph 35.7 mph N/A   Mostly Cloudy
12:55 PM 21.2 °F 3.5 °F 17.6 °F 86% 29.98 in - NW 27.6 mph 35.7 mph N/A   Unknown
1:15 PM 21.2 °F 3.5 °F 17.6 °F 86% 29.98 in - NW 27.6 mph 32.2 mph N/A   Unknown
1:35 PM 21.2 °F 4.5 °F 17.6 °F 86% 29.99 in - NW 24.2 mph 32.2 mph N/A   Unknown
1:55 PM 21.2 °F 4.9 °F 17.6 °F 86% 30.01 in - NW 23.0 mph - N/A   Unknown
2:15 PM - - - N/A% 30.01 in - NW 27.6 mph 32.2 mph N/A   Unknown
2:35 PM - - - N/A% 30.02 in - NW 28.8 mph - N/A   Unknown
2:55 PM 19.4 °F 0.2 °F 15.8 °F 86% 30.03 in 2.0 mi NW 31.1 mph 38.0 mph N/A   Clear
3:15 PM 19.4 °F 0.8 °F 15.8 °F 86% 30.04 in 1.5 mi NW 28.8 mph 38.0 mph N/A   Mist
3:35 PM 19.4 °F 1.8 °F 15.8 °F 86% 30.05 in 4.0 mi NW 25.3 mph 34.5 mph N/A   Clear
3:55 PM 19.4 °F 2.8 °F 15.8 °F 86% 30.06 in 7.0 mi NW 21.9 mph 32.2 mph N/A   Clear
4:15 PM 17.6 °F -1.6 °F 14.0 °F 86% 30.06 in 2.0 mi NW 28.8 mph 38.0 mph N/A   Clear
4:35 PM 17.6 °F -0.6 °F 14.0 °F 86% 30.07 in 7.0 mi WNW 25.3 mph 33.4 mph N/A   Clear
4:55 PM 17.6 °F -0.6 °F 12.2 °F 79% 30.09 in 10.0 mi WNW 25.3 mph 29.9 mph N/A   Clear
5:15 PM 17.6 °F 0.1 °F 12.2 °F 79% 30.10 in 10.0 mi WNW 23.0 mph 27.6 mph N/A   Clear
5:35 PM 17.6 °F 0.5 °F 12.2 °F 79% 30.10 in 10.0 mi NW 21.9 mph 25.3 mph N/A   Clear
5:55 PM 17.6 °F 0.1 °F 12.2 °F 79% 30.11 in 10.0 mi WNW 23.0 mph - N/A   Clear
6:15 PM 15.8 °F -1.1 °F 12.2 °F 86% 30.12 in 10.0 mi WNW 19.6 mph - N/A   Clear
6:35 PM 15.8 °F -0.2 °F 12.2 °F 86% 30.13 in 10.0 mi NW 17.3 mph - N/A   Clear
6:55 PM 15.8 °F -0.2 °F 10.4 °F 79% 30.13 in 10.0 mi NW 17.3 mph - N/A   Clear
7:15 PM 15.8 °F -1.1 °F 10.4 °F 79% 30.14 in 10.0 mi WNW 19.6 mph - N/A   Clear
7:35 PM 15.8 °F -0.6 °F 10.4 °F 79% 30.14 in 10.0 mi NW 18.4 mph - N/A   Clear
7:55 PM 15.8 °F -0.2 °F 10.4 °F 79% 30.14 in 10.0 mi NW 17.3 mph - N/A   Clear
8:15 PM 15.8 °F -1.1 °F 10.4 °F 79% 30.14 in 10.0 mi WNW 19.6 mph - N/A   Clear
8:35 PM 15.8 °F -1.5 °F 10.4 °F 79% 30.14 in 10.0 mi WNW 20.7 mph - N/A   Clear
8:55 PM 14.0 °F -2.5 °F 10.4 °F 86% 30.15 in 10.0 mi WNW 17.3 mph - N/A   Clear
9:15 PM 14.0 °F -2.5 °F 10.4 °F 86% 30.15 in 10.0 mi WNW 17.3 mph - N/A   Clear
9:35 PM 14.0 °F -2.0 °F 8.6 °F 79% 30.16 in 10.0 mi WNW 16.1 mph - N/A   Clear
9:55 PM 12.2 °F -3.1 °F 8.6 °F 85% 30.17 in 10.0 mi WNW 13.8 mph - N/A   Clear
10:15 PM 14.0 °F -0.2 °F 8.6 °F 79% 30.18 in 10.0 mi WNW 12.7 mph - N/A   Clear
10:35 PM 12.2 °F -1.0 °F 8.6 °F 85% 30.19 in 10.0 mi WNW 10.4 mph - N/A   Clear
10:55 PM 12.2 °F 1.7 °F 8.6 °F 85% 30.20 in 10.0 mi WNW 6.9 mph - N/A   Clear
11:15 PM 12.2 °F -1.0 °F 8.6 °F 85% 30.21 in 10.0 mi WNW 10.4 mph - N/A   Clear
11:35 PM 12.2 °F -0.2 °F 8.6 °F 85% 30.21 in 10.0 mi WNW 9.2 mph - N/A   Clear
11:55 PM 12.2 °F -1.0 °F 8.6 °F 85% 30.21 in 10.0 mi WNW 10.4 mph - N/A   Clear