477  
CDUS45 KPSR 202317  
CLIPHX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE PHOENIX AZ  
417 PM MST THU DEC 20 2018  
 
   
...............................
 
 
   
..THE PHOENIX AZ CLIMATE SUMMARY FOR DECEMBER 20 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1895 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL   
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 75 341 PM 78 1954 65 10 68  
MINIMUM 43 736 AM 24 1897 44 -1 45  
AVERAGE 59 55 4 57  
 
PRECIPITATION (IN)  
TODAY 0.00 0.28 1968 0.02 -0.02 0.00  
1938  
MONTH TO DATE 0.05 0.57 -0.52 0.23  
SINCE OCT 1 5.75 1.80 3.95 0.23  
SINCE JAN 1 9.15 7.72 1.43 4.96  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE JAN 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 6 10 -4 8  
MONTH TO DATE 146 184 -38 92  
SINCE DEC 1 146 184 -38 92  
SINCE JUL 1 221 287 -66 93  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 19  
SINCE DEC 1 0 0 0 19  
SINCE JAN 1 4943 4606 337 5212   
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 3.5  
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 71 500 AM  
LOWEST 22 400 PM  
AVERAGE 47  
   
......................................................
 
 
THE PHOENIX AZ CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 77 1985  
1950  
1917  
MINIMUM TEMPERATURE (F) 44 27 1897  
 
SUNRISE AND SUNSET  
DECEMBER 20 2018......SUNRISE 728 AM MST SUNSET 524 PM MST  
DECEMBER 21 2018......SUNRISE 728 AM MST SUNSET 524 PM MST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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