Climatological Report (Daily)
Issued by NWS

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266
CDUS46 KMTR 010829
CLIHWD

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
129 AM PDT MON SEP 01 2025

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

...THE HAYWARD AIRPORT CLIMATE SUMMARY FOR AUGUST 31 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         88  12:32 PM  91    2017  78     10       75
  MINIMUM         61   5:29 AM  55    1999  58      3       62
                                      2021
  AVERAGE         75                        68      7       69

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  MONTH TO DATE    0.00                                      0.02
  SINCE OCT 1     14.64                                     21.86
  SINCE JAN 1      7.43                                     17.00

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    7                                         6
  SINCE JUN 1    119                                        33
  SINCE JUL 1     40                                        10

 COOLING
  YESTERDAY       10                                         4
  MONTH TO DATE   79                                       130
  SINCE JUN 1    108                                       406
  SINCE JAN 1    156                                       437
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   W (290)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     5.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    80          11:00 PM
 LOWEST     24          12:00 PM
 AVERAGE    52

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


THE HAYWARD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78       103      2017
 MINIMUM TEMPERATURE (F)   58        53      1999


SUNRISE AND SUNSET
SEPTEMBER  1 2025.....SUNRISE   6:39 AM PDT   SUNSET   7:37 PM PDT
SEPTEMBER  2 2025.....SUNRISE   6:40 AM PDT   SUNSET   7:35 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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