662  
CDUS43 KDMX 210629  
CLIMCW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
128 AM CDT MON MAY 21 2012  
 
   
...............................  
 
   
..THE MASON CITY IA CLIMATE SUMMARY FOR MAY 20 2012  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1893 TO 2012  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 1203 AM 96 1934 71 1 72  
MINIMUM 42 1100 PM 28 1907 48 -6 58  
AVERAGE 57 60 -3 65  
 
PRECIPITATION (IN)  
YESTERDAY T 2.36 1959 0.15 -0.15 0.36  
MONTH TO DATE 1.86 2.96 -1.10 1.77  
SINCE MAR 1 8.32 8.94 -0.62 8.29  
SINCE JAN 1 10.39 10.76 -0.37 10.40  
 
SNOWFALL (IN)  
YESTERDAY MM MM MM 0.0 MM 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE MAR 1 1.0 8.8 -7.8 8.1  
SINCE JUL 1 18.8 41.3 -22.5 54.8  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 6 2 0  
MONTH TO DATE 77 181 -104 213  
SINCE MAR 1 1039 1730 -691 1850  
SINCE JUL 1 6061 7581 -1520 7801  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 35 12 23 17  
SINCE MAR 1 48 17 31 17  
SINCE JAN 1 48 17 31 17    
..............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 41 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 14.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 600 AM  
LOWEST 42 700 PM  
AVERAGE 66  
   
......................................................  
 
 
THE MASON CITY IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 93 1970  
MINIMUM TEMPERATURE (F) 49 30 1895  
 
 
SUNRISE AND SUNSET  
MAY 21 2012...........SUNRISE 543 AM CDT SUNSET 837 PM CDT  
MAY 22 2012...........SUNRISE 543 AM CDT SUNSET 838 PM CDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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