Weather History for Mason City, IA

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Sunday, December 30, 2012

  Actual Average Record
Temperature  
Mean Temperature 14 °F 16 °F  
Max Temperature 27 °F 25 °F 54 °F (1965)
Min Temperature 0 °F 8 °F -20 °F (1968)
Degree Days  
Heating Degree Days 51 48  
Month to date heating degree days 1212 1360  
Since 1 July heating degree days 2814 3040  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 899 616  
Moisture  
Dew Point 6 °F    
Average Humidity 82    
Maximum Humidity 95    
Minimum Humidity 68    
Precipitation  
Precipitation T in 0.03 in 0.75 in (1907)
Month to date precipitation 1.52 1.21  
Year to date precipitation 20.45 35.17  
Snow  
Snow T in 0.30 in 15.00 in (1907)
Month to date snowfall 10.6 9.0  
Since 1 July snowfall 10.6 13.7  
Snow Depth 6.00 in    
Sea Level Pressure  
Sea Level Pressure 30.16 in    
Wind  
Wind Speed 8 mph (SSW)    
Max Wind Speed 17 mph    
Max Gust Speed 22 mph    
Visibility 6 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 30, 2012 Rise Set
Actual Time 7:45 AM CST 4:47 PM CST
Civil Twilight 7:12 AM CST 5:19 PM CST
Nautical Twilight 6:36 AM CST 5:55 PM CST
Astronomical Twilight 6:02 AM CST 6:30 PM CST
Moon 7:23 PM CST (12/30) 8:50 AM CST (12/30)
Length of Visible Light 10h 07m
Length of Day
9h 02m
Waning Gibbous, 95% of the Moon is Illuminated
Dec 30
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
12:03 AM 3.2 °F -6.2 °F 1.4 °F 92% 30.19 in 2.5 mi West 4.6 mph - N/A   Overcast
12:20 AM 3.2 °F -7.8 °F -0.4 °F 85% 30.19 in 1.5 mi West 5.8 mph - N/A   Overcast
12:53 AM 3.9 °F -5.3 °F 1.0 °F 88% 30.26 in 1.8 mi WSW 4.6 mph - N/A   Overcast
12:58 AM 3.2 °F - 1.4 °F 92% 30.19 in 3.0 mi Calm Calm - N/A   Overcast
1:53 AM 3.9 °F -3.4 °F -0.0 °F 84% 30.27 in 4.0 mi SW 3.5 mph - N/A   Overcast
2:53 AM 6.1 °F - 3.0 °F 87% 30.27 in 4.0 mi Calm Calm - N/A   Overcast
3:40 AM 5.0 °F - 1.4 °F 85% 30.21 in 1.8 mi Calm Calm - N/A   Overcast
3:53 AM 5.0 °F -2.1 °F 1.0 °F 84% 30.28 in 1.8 mi SSW 3.5 mph - N/A   Overcast
4:25 AM 3.2 °F -6.2 °F 1.4 °F 92% 30.20 in 1.2 mi South 4.6 mph - N/A   Overcast
4:32 AM 3.2 °F -7.8 °F -0.4 °F 85% 30.20 in 3.0 mi South 5.8 mph - N/A   Overcast
4:53 AM 3.0 °F -4.4 °F -0.9 °F 84% 30.27 in 5.0 mi South 3.5 mph - N/A   Mostly Cloudy
5:05 AM 1.4 °F -8.3 °F -2.2 °F 85% 30.19 in 5.0 mi South 4.6 mph - N/A   Partly Cloudy
5:28 AM 1.4 °F -6.2 °F -0.4 °F 92% 30.20 in 4.0 mi South 3.5 mph - N/A   Mostly Cloudy
5:39 AM 3.2 °F -9.1 °F -0.4 °F 85% 30.19 in 5.0 mi South 6.9 mph - N/A   Scattered Clouds
5:53 AM 1.9 °F -9.2 °F -0.9 °F 88% 30.27 in 6.0 mi South 5.8 mph - N/A   Partly Cloudy
6:53 AM 1.0 °F -11.7 °F -2.9 °F 83% 30.28 in 7.0 mi South 6.9 mph - 0.00 in   Clear
7:53 AM 1.0 °F -10.3 °F -4.0 °F 79% 30.27 in 6.0 mi South 5.8 mph - N/A   Haze
8:53 AM 3.0 °F -9.3 °F -0.9 °F 84% 30.27 in 5.0 mi South 6.9 mph - N/A   Clear
9:53 AM 6.1 °F -5.6 °F 3.0 °F 87% 30.27 in 5.0 mi South 6.9 mph - N/A   Clear
10:53 AM 9.0 °F -2.2 °F 5.0 °F 84% 30.25 in 5.0 mi South 6.9 mph - N/A   Clear
11:53 AM 14.0 °F 2.9 °F 10.0 °F 84% 30.19 in 4.0 mi South 8.1 mph - N/A   Clear
12:53 PM 18.0 °F 6.1 °F 12.0 °F 78% 30.12 in 5.0 mi SSE 10.4 mph - N/A   Haze
1:53 PM 19.9 °F 7.3 °F 14.0 °F 78% 30.08 in 5.0 mi SSE 12.7 mph - N/A   Haze
2:53 PM 24.1 °F 11.0 °F 16.0 °F 71% 30.03 in 7.0 mi SSE 16.1 mph - N/A   Clear
3:53 PM 21.9 °F 9.2 °F 15.1 °F 75% 30.02 in 8.0 mi SSE 13.8 mph - N/A   Clear
4:53 PM 19.9 °F 8.6 °F 14.0 °F 78% 30.02 in 8.0 mi SSE 10.4 mph - N/A   Clear
5:53 PM 19.0 °F 9.0 °F 14.0 °F 81% 30.01 in 9.0 mi SSE 8.1 mph - N/A   Clear
6:53 PM 16.0 °F 7.4 °F 12.0 °F 84% 29.99 in 9.0 mi South 5.8 mph - N/A   Clear
7:53 PM 26.1 °F 16.8 °F 19.0 °F 75% 29.99 in 10.0 mi SW 9.2 mph - N/A   Clear
8:53 PM 27.0 °F 15.2 °F 19.9 °F 75% 30.00 in 10.0 mi West 15.0 mph - N/A   Clear
9:53 PM 24.1 °F 12.0 °F 18.0 °F 77% 30.00 in 10.0 mi West 13.8 mph - N/A   Clear
10:53 PM 19.9 °F 7.9 °F 15.1 °F 81% 30.03 in 10.0 mi West 11.5 mph - N/A   Clear
11:53 PM 18.0 °F 6.1 °F 12.0 °F 78% 30.06 in 10.0 mi WNW 10.4 mph - N/A   Clear