450  
CDUS43 KGRR 102109  
CLIGRR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MI  
507 PM EDT SAT OCT 10 2009  
   
...............................  
   
..THE GRAND RAPIDS MI CLIMATE SUMMARY FOR OCTOBER 10 2009  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1971 TO 2000  
CLIMATE RECORD PERIOD 1892 TO 2009  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE  
VALUE (LST) VALUE VALUE FROM  
NORMAL    
...........................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 52 MM 85 1949 62 -10  
MINIMUM 35 MM 26 1956 42 -7  
AVERAGE 44 52 -8  
 
PRECIPITATION (IN)  
TODAY 0.00 1.44 1914 0.09 -0.09  
MONTH TO DATE 2.17 1.00 1.17  
SINCE SEP 1 3.73 5.28 -1.55  
SINCE JAN 1 32.91 29.28 3.63  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 2002 0.0 0.0  
2001  
MONTH TO DATE T 0.0 0.0  
SINCE SEP 1 T 0.0 0.0  
SINCE JUL 1 T 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 21 8  
MONTH TO DATE 149 35  
SINCE SEP 1 229 -44  
SINCE JUL 1 282 -25  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 -5  
SINCE SEP 1 47 -14  
SINCE JAN 1 455 -158  
   
...........................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 8.6  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96  
LOWEST 46  
AVERAGE 71  
   
......................................................  
 
 
THE GRAND RAPIDS MI CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 85 1928  
MINIMUM TEMPERATURE (F) 42 25 1906  
 
SUNRISE AND SUNSET  
OCTOBER 10 2009.......SUNRISE 750 AM EDT SUNSET 707 PM EDT  
OCTOBER 11 2009.......SUNRISE 751 AM EDT SUNSET 706 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
 
IOD  
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