Weather History for Iowa City, IA

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Monday, December 31, 2012

  Actual Average Record
Temperature  
Mean Temperature 25 °F 22 °F  
Max Temperature 35 °F 30 °F 60 °F (1965)
Min Temperature 15 °F 14 °F -13 °F (1976)
Degree Days  
Heating Degree Days 40 43  
Month to date heating degree days 1033 1232  
Since 1 July heating degree days 2372 2539  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1266 912  
Moisture  
Dew Point 13 °F    
Average Humidity 68    
Maximum Humidity 75    
Minimum Humidity 61    
Precipitation  
Precipitation 0.00 in 0.02 in 0.52 in (2006)
Month to date precipitation 1.29 1.52  
Year to date precipitation 26.12 36.28  
Sea Level Pressure  
Sea Level Pressure 30.17 in    
Wind  
Wind Speed 10 mph (NW)    
Max Wind Speed 17 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 31, 2012 Rise Set
Actual Time 7:33 AM CST 4:46 PM CST
Civil Twilight 7:01 AM CST 5:17 PM CST
Nautical Twilight 6:26 AM CST 5:52 PM CST
Astronomical Twilight 5:53 AM CST 6:26 PM CST
Moon 8:19 PM CST (12/31) 9:12 AM CST (12/31)
Length of Visible Light 10h 15m
Length of Day
9h 13m
Waning Gibbous, 90% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 33.1 °F 27.7 °F 24.1 °F 70% 30.06 in 10.0 mi SW 5.8 mph - N/A   Clear
1:52 AM 34.0 °F 28.8 °F 25.0 °F 70% 30.06 in 10.0 mi SW 5.8 mph - N/A   Clear
2:52 AM 33.1 °F 23.9 °F 25.0 °F 72% 30.09 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
3:52 AM 28.9 °F 18.6 °F 21.0 °F 72% 30.10 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
4:52 AM 27.0 °F 16.7 °F 19.9 °F 75% 30.12 in 10.0 mi West 11.5 mph - N/A   Partly Cloudy
5:52 AM 25.0 °F 13.6 °F 17.1 °F 72% 30.12 in 10.0 mi NW 12.7 mph - N/A   Clear
6:52 AM 21.9 °F 8.7 °F 14.0 °F 72% 30.15 in 10.0 mi NW 15.0 mph - N/A   Partly Cloudy
8:52 AM 19.0 °F 7.5 °F 12.9 °F 77% 30.17 in 10.0 mi NNW 10.4 mph 16.1 mph N/A   Partly Cloudy
9:52 AM 19.0 °F 8.2 °F 12.0 °F 74% 30.19 in 10.0 mi NW 9.2 mph 18.4 mph N/A   Mostly Cloudy
10:52 AM 19.0 °F 8.2 °F 12.0 °F 74% 30.20 in 10.0 mi WNW 9.2 mph - N/A   Overcast
11:52 AM 19.0 °F 6.8 °F 12.0 °F 74% 30.19 in 10.0 mi WNW 11.5 mph - N/A   Overcast
12:52 PM 19.0 °F 6.8 °F 10.9 °F 71% 30.18 in 10.0 mi NW 11.5 mph - N/A   Overcast
1:52 PM 19.0 °F 7.5 °F 10.9 °F 71% 30.17 in 10.0 mi NW 10.4 mph - N/A   Overcast
2:52 PM 19.0 °F 6.1 °F 10.0 °F 68% 30.16 in 10.0 mi NW 12.7 mph - N/A   Overcast
3:52 PM 19.0 °F 7.5 °F 10.0 °F 68% 30.17 in 10.0 mi NW 10.4 mph - N/A   Overcast
5:52 PM 19.0 °F 10.0 °F 10.0 °F 68% 30.18 in 10.0 mi NW 6.9 mph - N/A   Overcast
6:52 PM 18.0 °F 5.4 °F 9.0 °F 68% 30.20 in 10.0 mi NW 11.5 mph - N/A   Overcast
7:52 PM 18.0 °F 6.1 °F 9.0 °F 68% 30.21 in 10.0 mi NNW 10.4 mph - N/A   Overcast
8:52 PM 18.0 °F 7.7 °F 9.0 °F 68% 30.22 in 10.0 mi NNW 8.1 mph - N/A   Overcast
9:52 PM 18.0 °F 6.9 °F 7.0 °F 62% 30.24 in 10.0 mi North 9.2 mph - N/A   Overcast
10:52 PM 17.1 °F 5.0 °F 7.0 °F 65% 30.26 in 10.0 mi NNW 10.4 mph - N/A   Overcast
11:52 PM 16.0 °F 5.3 °F 6.1 °F 65% 30.26 in 10.0 mi NNW 8.1 mph - N/A   Overcast