739  
CDUS43 KGRR 160522  
CLIGRR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN  
1222 AM EST SAT DEC 16 2023  
   
...............................  
 
   
..THE GRAND RAPIDS CLIMATE SUMMARY FOR DECEMBER 15 2023  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1892 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 53 3:08 PM 62 2021 36 17 40  
MINIMUM 32 3:53 AM -7 1917 25 7 32  
AVERAGE 43 30 13 36  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.25 1893 0.08 -0.08 0.44  
MONTH TO DATE 0.85 1.24 -0.39 0.69  
SINCE DEC 1 0.85 1.24 -0.39 0.69  
SINCE JAN 1 35.70 38.16 -2.46 35.67  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.7 1987 0.7 -0.7 0.5  
MONTH TO DATE 0.1 9.0 -8.9 1.3  
SINCE DEC 1 0.1 9.0 -8.9 1.3  
SINCE JUL 1 2.0 16.4 -14.4 29.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 22 34 -12 29  
MONTH TO DATE 411 489 -78 455  
SINCE DEC 1 411 489 -78 455  
SINCE JUL 1 1656 1802 -146 1729  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 668 733 -65 800    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SW (230)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 6.9  
 
SKY COVER  
POSSIBLE SUNSHINE 436 MINUTES / 80 PERCENT  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 6:00 AM  
LOWEST 41 3:00 PM  
AVERAGE 65  
   
......................................................  
 
THE GRAND RAPIDS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 63 2021  
MINIMUM TEMPERATURE (F) 25 -2 1901  
1989  
 
SUNRISE AND SUNSET  
DECEMBER 16 2023......SUNRISE 8:06 AM EST SUNSET 5:09 PM EST  
DECEMBER 17 2023......SUNRISE 8:07 AM EST SUNSET 5:09 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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