701  
CDUS43 KDMX 170637  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
132 AM CDT SAT MAY 17 2008  
   
...............................  
 
   
..THE WATERLOO CLIMATE SUMMARY FOR MAY 16 2008  
 
CLIMATE NORMAL PERIOD 1971 TO 2000  
CLIMATE RECORD PERIOD 1895 TO 2008  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 324 PM 92 1936 72 6 70  
MINIMUM 48 403 AM 30 1929 48 0 37  
1921  
AVERAGE 63 60 3 54  
 
PRECIPITATION (IN)  
YESTERDAY T 3.03 1999 0.13 -0.13 0.00  
MONTH TO DATE 1.94 2.01 -0.07 1.43  
SINCE MAR 1 14.34 7.37 6.97 7.51  
SINCE JAN 1 17.67 9.26 8.41 9.55  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 T 0.0 0.0  
SINCE MAR 1 5.1 7.0 -1.9 7.1  
SINCE JUL 1 53.9 34.9 19.0 29.2  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 6 -4 11  
MONTH TO DATE 162 140 22 53  
SINCE MAR 1 1822 1614 208 1413  
SINCE JUL 1 7556 7254 302 6847  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 14 -14 26  
SINCE MAR 1 0 21 -21 51  
SINCE JAN 1 0 21 -21 51    
..............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 11.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 64 700 AM  
LOWEST 21 500 PM  
AVERAGE 43  
   
......................................................  
 
 
THE WATERLOO CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 94 1934  
MINIMUM TEMPERATURE (F) 49 32 1925  
1915  
 
 
SUNRISE AND SUNSET  
MAY 17 2008...........SUNRISE 545 AM CDT SUNSET 827 PM CDT  
MAY 18 2008...........SUNRISE 544 AM CDT SUNSET 828 PM CDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
   
...............................  
 
   
..THE MASON CITY CLIMATE SUMMARY FOR MAY 16 2008  
 
CLIMATE NORMAL PERIOD 1971 TO 2000  
CLIMATE RECORD PERIOD 1893 TO 2008  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 77 446 PM 91 1936 71 6 65  
MINIMUM 48 513 AM 26 1921 47 1 39  
AVERAGE 63 59 4 52  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 2.18 1992 0.14 -0.13 0.00  
MONTH TO DATE 1.52 2.11 -0.59 2.38  
SINCE MAR 1 8.29 7.71 0.58 10.72  
SINCE JAN 1 10.21 9.61 0.60 13.43  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.2 1992 0.0 0.0 0.0  
MONTH TO DATE 0.0 T 0.0 0.0  
SINCE MAR 1 4.9 8.7 -3.8 16.5  
SINCE JUL 1 34.9 39.6 -4.7 52.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 7 -5 13  
MONTH TO DATE 182 154 28 69  
SINCE MAR 1 1945 1710 235 1561  
SINCE JUL 1 7966 7651 315 7344  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 12 -12 29  
SINCE MAR 1 0 13 -13 42  
SINCE JAN 1 0 13 -13 42    
..............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 12.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
HAZE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 600 AM  
LOWEST 22 400 PM  
AVERAGE 50  
 
..........................................................  
 
 
THE MASON CITY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 94 1934  
MINIMUM TEMPERATURE (F) 48 28 1930  
 
 
SUNRISE AND SUNSET  
MAY 17 2008...........SUNRISE 547 AM CDT SUNSET 833 PM CDT  
MAY 18 2008...........SUNRISE 546 AM CDT SUNSET 834 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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