Weather Service Report


991 
CDUS46 KMTR 010035
CLISFO


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA                      
535 PM PDT SUN APR 30 2017


................................... 

...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 30 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1927 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST     
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     
                                                  NORMAL             
..................................................................
TEMPERATURE (F)                                                     
 TODAY                                                               
  MAXIMUM         74    108 PM  90    2014  66      8       71       
                                      1996                          
                                      1922                          
  MINIMUM         50    526 AM  41    1946  50      0       49       
  AVERAGE         62                        58      4       60      
                                                                     
PRECIPITATION (IN)                                                   
  TODAY            0.00          0.71 1983   0.03  -0.03     0.00    
  MONTH TO DATE    2.20                      1.29   0.91     0.82    
  SINCE OCT 1     30.87                     19.86  11.01    17.18    
  SINCE JAN 1     21.92                     12.50   9.42    12.39    
                                                                     
SNOWFALL (IN)                                                        
  TODAY            0.0           0.0                                 
  MONTH TO DATE    0.0                                               
  SINCE MAR 1      0.0                                               
  SINCE JUL 1      0.0                                               
  SNOW DEPTH       0                                                 
                                                                     
DEGREE DAYS                                                          
 HEATING                                                             
  TODAY            3                         7     -4        5       
  MONTH TO DATE  191                       247    -56      153       
  SINCE MAR 1    432                       562   -130      370       
  SINCE JUL 1   2009                      2368   -359     1768       
                                                                     
 COOLING                                                             
  TODAY            0                         0      0        0       
  MONTH TO DATE    2                         5     -3       20       
  SINCE MAR 1      2                         6     -4       20       
  SINCE JAN 1      2                         6     -4       20       
..................................................................


WIND (MPH)                                                           
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   W (290)      
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION     W (270)      
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     W (280)      
  AVERAGE WIND SPEED    10.6                                         

                                                                     
SKY COVER                                                            
  POSSIBLE SUNSHINE  MM                                              
  AVERAGE SKY COVER 0.0                                              

                                                                     
WEATHER CONDITIONS                                                  
 THE FOLLOWING WEATHER WAS RECORDED TODAY.                            
  NO SIGNIFICANT WEATHER WAS OBSERVED.                               

                                                                     
RELATIVE HUMIDITY (PERCENT)                                          
 HIGHEST    83           600 AM                                     
 LOWEST     38           100 PM                                     
 AVERAGE    61                                                       

..........................................................

                                                                     
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR                    
 MAXIMUM TEMPERATURE (F)   66        89      1947                    
 MINIMUM TEMPERATURE (F)   50        44      2008                    
                                             1988                    

                                                                     
SUNRISE AND SUNSET                                                   
APRIL 30 2017.........SUNRISE   615 AM PDT   SUNSET   759 PM PDT   
MAY  1 2017...........SUNRISE   614 AM PDT   SUNSET   800 PM PDT   

                                                                    
-  INDICATES NEGATIVE NUMBERS.                                      
R  INDICATES RECORD WAS SET OR TIED.                                
MM INDICATES DATA IS MISSING.                                       
T  INDICATES TRACE AMOUNT.                                          




$$


Return to Home page


Western Regional Climate Center, wrcc@dri.edu