Climatological Report (Daily)
Issued by NWS

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403
CDUS46 KMTR 020828
CLIHWD

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
128 AM PDT TUE SEP 02 2025

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

...THE HAYWARD AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 1 2025...

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)
 YESTERDAY
  MAXIMUM         84   2:50 PM 103    2017  78      6       76
  MINIMUM         59   5:57 AM  53    1999  58      1       62
  AVERAGE         72                        68      4       69

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    0.00                                      0.00
  SINCE OCT 1     14.64                                     21.86
  SINCE JAN 1      7.43                                     17.00

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE SEP 1      0                                         0
  SINCE JUL 1     40                                        10

 COOLING
  YESTERDAY        7                                         4
  MONTH TO DATE    7                                         4
  SINCE SEP 1      7                                         4
  SINCE JAN 1    163                                       441
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   W (290)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     4.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           4:00 AM
 LOWEST     38           2:00 PM
 AVERAGE    64

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


THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78       108      2017
 MINIMUM TEMPERATURE (F)   58        52      2012


SUNRISE AND SUNSET
SEPTEMBER  2 2025.....SUNRISE   6:40 AM PDT   SUNSET   7:35 PM PDT
SEPTEMBER  3 2025.....SUNRISE   6:41 AM PDT   SUNSET   7:34 PM PDT


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




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