Weather History for Mason City, IA

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Tuesday, August 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 61 °F 69 °F  
Max Temperature 81 °F 80 °F 100 °F (1947)
Min Temperature 41 °F 58 °F 36 °F (2004)
Degree Days  
Heating Degree Days 4 1  
Month to date heating degree days 31 16  
Since 1 June heating degree days 50 69  
Since 1 July heating degree days 31 25  
Cooling Degree Days 0 5  
Month to date cooling degree days 90 119  
Year to date cooling degree days 751 513  
Since 1 June cooling degree days 669 478  
Growing Degree Days 11 (Base 50)    
Moisture  
Dew Point 44 °F    
Average Humidity 59    
Maximum Humidity 92    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in 0.13 in 3.25 in (1979)
Month to date precipitation 0.53 2.80  
Year to date precipitation 14.96 25.12  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 June snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 4 mph (SSE)    
Max Wind Speed 12 mph    
Max Gust Speed 17 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 21, 2012 Rise Set
Actual Time 6:26 AM CDT 8:05 PM CDT
Civil Twilight 5:55 AM CDT 8:35 PM CDT
Nautical Twilight 5:19 AM CDT 9:12 PM CDT
Astronomical Twilight 4:39 AM CDT 9:51 PM CDT
Moon 11:06 AM CDT (8/21) 9:55 PM CDT (8/21)
Length of Visible Light 14h 39m
Length of Day
13h 39m
Waxing Crescent, 19% of the Moon is Illuminated
Aug 21
Waxing Crescent
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New

Hourly Weather History & Observations

Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 48.0 °F 43.0 °F 83% 30.06 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 46.9 °F 43.0 °F 86% 30.06 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 45.0 °F 42.1 °F 90% 30.06 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 45.0 °F 41.0 °F 86% 30.07 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 43.0 °F 39.9 °F 89% 30.06 in 10.0 mi Calm Calm - N/A   Clear
5:53 AM 43.0 °F 39.9 °F 89% 30.07 in 9.0 mi Calm Calm - N/A   Clear
6:34 AM 42.8 °F 39.2 °F 87% 30.10 in 0.8 mi Calm Calm - N/A   Clear
6:42 AM 42.8 °F 41.0 °F 93% 30.10 in 2.5 mi Calm Calm - N/A   Clear
6:49 AM 42.8 °F 39.2 °F 87% 30.10 in 9.0 mi Calm Calm - N/A   Clear
6:53 AM 43.0 °F 39.9 °F 89% 30.09 in 10.0 mi Calm Calm - N/A   Clear
7:53 AM 54.0 °F 48.0 °F 80% 30.10 in 5.0 mi Calm Calm - N/A   Haze
8:53 AM 63.0 °F 46.9 °F 56% 30.10 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 70.0 °F 45.0 °F 41% 30.09 in 10.0 mi SE 5.8 mph - N/A   Clear
10:53 AM 73.0 °F 41.0 °F 31% 30.10 in 10.0 mi South 6.9 mph - N/A   Clear
11:53 AM 75.9 °F 42.1 °F 30% 30.09 in 10.0 mi Variable 6.9 mph - N/A   Clear
12:53 PM 77.0 °F 43.0 °F 30% 30.09 in 10.0 mi SE 4.6 mph - N/A   Clear
1:53 PM 80.1 °F 43.0 °F 27% 30.07 in 10.0 mi South 8.1 mph - N/A   Clear
2:53 PM 79.0 °F 43.0 °F 28% 30.06 in 10.0 mi Variable 5.8 mph - N/A   Clear
3:53 PM 79.0 °F 43.0 °F 28% 30.05 in 10.0 mi Variable 3.5 mph - N/A   Clear
4:53 PM 80.1 °F 43.0 °F 27% 30.05 in 10.0 mi Variable 5.8 mph - N/A   Clear
5:53 PM 80.1 °F 45.0 °F 29% 30.04 in 10.0 mi South 6.9 mph - N/A   Clear
6:53 PM 78.1 °F 46.9 °F 33% 30.03 in 10.0 mi South 8.1 mph - N/A   Clear
7:53 PM 72.0 °F 48.9 °F 44% 30.02 in 10.0 mi SSE 6.9 mph - N/A   Clear
8:53 PM 62.1 °F 51.1 °F 67% 30.04 in 6.0 mi South 4.6 mph - N/A   Haze
9:53 PM 57.0 °F 51.1 °F 81% 30.04 in 9.0 mi South 5.8 mph - N/A   Clear
10:53 PM 55.9 °F 48.9 °F 77% 30.03 in 10.0 mi South 6.9 mph - N/A   Clear
11:53 PM 55.0 °F 48.9 °F 80% 30.02 in 10.0 mi South 5.8 mph - N/A   Clear