655  
CDUS45 KPSR 312358  
CLIPHX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE PHOENIX AZ  
458 PM MST MON DEC 31 2018  
 
   
...............................
 
 
   
..THE PHOENIX AZ CLIMATE SUMMARY FOR DECEMBER 31 2018
 
 
VALID TODAY AS OF 458 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 52 114 PM 79 1897 66 -14 70  
MINIMUM 36 705 AM 22 1900 44 -8 45  
AVERAGE 44 55 -11 58  
 
PRECIPITATION (IN)  
TODAY 0.04 0.80 1976 0.03 0.01 0.00  
MONTH TO DATE 0.09 0.88 -0.79 0.23  
SINCE OCT 1 5.79 2.11 3.68 0.23  
SINCE JAN 1 9.19 8.03 1.16 4.96  
 
SNOWFALL (IN)  
TODAY MM  
MONTH TO DATE 0.0  
SINCE JAN 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 21 10 11 7  
MONTH TO DATE 280 294 -14 193  
SINCE DEC 1 280 298 -18 193  
SINCE JUL 1 355 401 -46 194  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 1 -1 19  
SINCE DEC 1 0 1 -1 19  
SINCE JAN 1 4943 4607 336 5212   
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 8.0  
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 300 PM  
LOWEST 41 100 PM  
AVERAGE 65  
   
......................................................
 
 
THE PHOENIX AZ CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 81 2012  
1981  
MINIMUM TEMPERATURE (F) 44 24 1919  
 
SUNRISE AND SUNSET  
DECEMBER 31 2018......SUNRISE 732 AM MST SUNSET 531 PM MST  
JANUARY 1 2019.......SUNRISE 732 AM MST SUNSET 531 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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