CDUS46 KMTR 120039

CLIHWD



CLIMATE REPORT 

NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA

439 PM PST THU DEC 11 2025



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



...THE HAYWARD AIRPORT CLIMATE SUMMARY FOR DECEMBER 11 2025...

VALID TODAY AS OF 0400 PM LOCAL TIME.



CLIMATE NORMAL PERIOD: 1991 TO 2020

CLIMATE RECORD PERIOD: 1998 TO 2025





WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      

                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     

                                                  NORMAL           

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

TEMPERATURE (F)                                                          

 TODAY                                                               

  MAXIMUM         55   3:47 PM  67    2017  60     -5       61        

  MINIMUM         43   8:00 AM  35    2013  43      0       41        

  AVERAGE         49                        51     -2       51     



PRECIPITATION (IN)                                                    

  TODAY            0.00                                       T       

  MONTH TO DATE    0.00                                       T       

  SINCE OCT 1      5.23                                      2.33     

  SINCE JAN 1     12.78                                     19.33     



DEGREE DAYS                                                           

 HEATING                                                              

  TODAY           16                                        14        

  MONTH TO DATE  171                                        97        

  SINCE DEC 1    171                                        97        

  SINCE JUL 1    499                                       380        



 COOLING                                                              

  TODAY            0                                         0        

  MONTH TO DATE    0                                         0        

  SINCE DEC 1      0                                         0        

  SINCE JAN 1    295                                       713        

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





WIND (MPH)                                                            

  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  NE (40)        

  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    NE (50)        

  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    NE (30)        

  AVERAGE WIND SPEED     5.7                                        





SKY COVER                                                             

  POSSIBLE SUNSHINE  MM                                                 

  AVERAGE SKY COVER 0.1                                                 





WEATHER CONDITIONS                                                    

THE FOLLOWING WEATHER WAS RECORDED TODAY.                             

  FOG                                                                 

  HAZE                                                                





RELATIVE HUMIDITY (PERCENT)

 HIGHEST    93           4:00 AM                                      

 LOWEST     71          12:00 PM                                      

 AVERAGE    82                                                        



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





THE HAYWARD AIRPORT CLIMATE NORMALS FOR TOMORROW

                         NORMAL    RECORD    YEAR                     

 MAXIMUM TEMPERATURE (F)   59        66      2018                      

 MINIMUM TEMPERATURE (F)   43        34      2013                      





SUNRISE AND SUNSET                                                    

DECEMBER 11 2025......SUNRISE   7:14 AM PST   SUNSET   4:50 PM PST     

DECEMBER 12 2025......SUNRISE   7:14 AM PST   SUNSET   4:50 PM PST     





-  INDICATES NEGATIVE NUMBERS.

R  INDICATES RECORD WAS SET OR TIED.

MM INDICATES DATA IS MISSING.

T  INDICATES TRACE AMOUNT.









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