Weather History for Mason City, IA

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Monday, December 10, 2012

  Actual Average Record
Temperature  
Mean Temperature 14 °F 21 °F  
Max Temperature 19 °F 29 °F 59 °F (1979)
Min Temperature 8 °F 13 °F -23 °F (1919)
Degree Days  
Heating Degree Days 51 44  
Month to date heating degree days 318 423  
Since 1 July heating degree days 1920 2103  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 899 616  
Moisture  
Dew Point 7 °F    
Average Humidity 83    
Maximum Humidity 92    
Minimum Humidity 73    
Precipitation  
Precipitation T in 0.04 in 1.20 in (1911)
Month to date precipitation 0.22 0.46  
Year to date precipitation 19.15 34.42  
Snow  
Snow T in 0.40 in 11.00 in (1970)
Month to date snowfall 1.4 3.0  
Since 1 July snowfall 1.4 7.7  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 12 mph (WNW)    
Max Wind Speed 29 mph    
Max Gust Speed 33 mph    
Visibility 9 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 10, 2012 Rise Set
Actual Time 7:34 AM CST 4:38 PM CST
Civil Twilight 7:02 AM CST 5:10 PM CST
Nautical Twilight 6:26 AM CST 5:46 PM CST
Astronomical Twilight 5:51 AM CST 6:20 PM CST
Moon 4:15 AM CST (12/10) 2:30 PM CST (12/10)
Length of Visible Light 10h 08m
Length of Day
9h 03m
Waning Crescent, 10% of the Moon is Illuminated
Dec 10
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 17.1 °F -1.4 °F 12.9 °F 84% 29.92 in 10.0 mi NW 25.3 mph 29.9 mph N/A   Overcast
1:07 AM 17.6 °F -0.3 °F 12.2 °F 79% 29.89 in 10.0 mi NW 24.2 mph 32.2 mph N/A   Overcast
1:53 AM 15.1 °F -2.0 °F 10.0 °F 80% 29.93 in 9.0 mi NW 19.6 mph 31.1 mph N/A   Overcast
2:53 AM 12.0 °F -6.9 °F 7.0 °F 80% 29.96 in 6.0 mi NW 21.9 mph 28.8 mph 0.00 in Snow Light Snow
3:07 AM 10.4 °F -9.9 °F 6.8 °F 85% 29.92 in 8.0 mi NW 24.2 mph 33.4 mph 0.00 in Snow Light Snow
3:37 AM 10.4 °F -9.1 °F 5.0 °F 79% 29.92 in 8.0 mi NW 21.9 mph - 0.00 in   Overcast
3:53 AM 10.9 °F -6.5 °F 5.0 °F 77% 29.97 in 7.0 mi NW 17.3 mph 26.5 mph 0.00 in Snow Light Snow
4:53 AM 10.9 °F -5.9 °F 6.1 °F 81% 29.97 in 10.0 mi WNW 16.1 mph - N/A   Overcast
5:53 AM 9.0 °F -10.0 °F 3.9 °F 80% 29.98 in 10.0 mi NW 19.6 mph - N/A   Overcast
6:22 AM 8.6 °F -10.5 °F 3.2 °F 79% 29.93 in 8.0 mi NW 19.6 mph - N/A   Overcast
6:53 AM 8.1 °F -10.7 °F 3.0 °F 80% 29.99 in 10.0 mi NW 18.4 mph 25.3 mph N/A   Overcast
7:00 AM 8.6 °F -11.0 °F 3.2 °F 79% 29.94 in 10.0 mi NW 20.7 mph - N/A   Overcast
7:53 AM 8.6 °F -8.9 °F 3.2 °F 79% 29.95 in 10.0 mi NW 16.1 mph - N/A   Overcast
8:53 AM 9.0 °F -7.3 °F 3.9 °F 80% 30.00 in 10.0 mi NW 13.8 mph - N/A   Overcast
9:53 AM 10.0 °F -5.2 °F 5.0 °F 80% 30.01 in 10.0 mi WNW 12.7 mph - N/A   Overcast
10:23 AM 10.4 °F -3.3 °F 6.8 °F 85% 29.96 in 10.0 mi NW 10.4 mph - N/A   Overcast
10:39 AM 10.4 °F -2.4 °F 6.8 °F 85% 29.97 in 10.0 mi WNW 9.2 mph - N/A   Overcast
10:53 AM 10.9 °F -2.6 °F 6.1 °F 81% 30.02 in 10.0 mi WNW 10.4 mph - N/A   Overcast
11:53 AM 12.9 °F -0.2 °F 8.1 °F 81% 29.99 in 5.0 mi NW 10.4 mph - 0.00 in Snow Light Snow
12:53 PM 16.0 °F 2.3 °F 10.0 °F 77% 29.98 in 10.0 mi WNW 12.7 mph - 0.00 in   Scattered Clouds
1:53 PM 18.0 °F 6.9 °F 10.9 °F 74% 29.97 in 10.0 mi NW 9.2 mph - N/A   Clear
2:53 PM 19.0 °F 7.5 °F 12.0 °F 74% 29.96 in 10.0 mi WNW 10.4 mph - N/A   Clear
3:53 PM 17.1 °F 8.7 °F 10.9 °F 77% 29.96 in 10.0 mi West 5.8 mph - N/A   Clear
4:53 PM 15.1 °F 9.4 °F 9.0 °F 77% 29.97 in 10.0 mi WNW 3.5 mph - N/A   Clear
5:53 PM 12.0 °F - 7.0 °F 80% 29.98 in 10.0 mi Calm Calm - N/A   Clear
6:53 PM 12.9 °F - 10.0 °F 88% 29.97 in 10.0 mi Calm Calm - N/A   Clear
7:53 PM 12.0 °F 4.1 °F 8.1 °F 84% 29.97 in 10.0 mi SSE 4.6 mph - N/A   Clear
8:53 PM 10.0 °F 0.4 °F 5.0 °F 80% 29.97 in 10.0 mi SSE 5.8 mph - N/A   Clear
9:53 PM 12.0 °F 1.5 °F 8.1 °F 84% 29.97 in 10.0 mi South 6.9 mph - N/A   Clear
10:53 PM 10.9 °F -0.8 °F 6.1 °F 81% 29.96 in 10.0 mi South 8.1 mph - N/A   Partly Cloudy
11:53 PM 10.9 °F -0.8 °F 6.1 °F 81% 29.94 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds