Climatological Report (Daily)
Issued by NWS Seattle/Tacoma, WA

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345
CDUS46 KSEW 210827
CLISEW

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
127 AM PDT MON SEP 21 2026

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

...THE SEATTLE WA WFO CLIMATE SUMMARY FOR SEPTEMBER 20 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1894 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR     LAST
                VALUE   (LST)  VALUE           YEAR
.....................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         71        MM  85    1974    78
  MINIMUM         49        MM  41    1895    52
  AVERAGE         60                          65

PRECIPITATION (IN)
  YESTERDAY        0.00          1.10 1923     0.00
  MONTH TO DATE    0.76                        0.05
  SINCE OCT 1     34.36                       31.78
  SINCE JAN 1     18.13                       15.64

SNOWFALL (IN)
  YESTERDAY        0.0                         0.0
  MONTH TO DATE    0.0                         0.0
  SINCE OCT 1      0.2                         2.6
  SINCE JUL 1      0.0                         0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        5                           0
  MONTH TO DATE   40                          10
  SINCE SEP 1     40                          10
  SINCE JUL 1     56                          19

 COOLING
  YESTERDAY        0                           0
  MONTH TO DATE    4                          48
  SINCE SEP 1      4                          48
  SINCE JAN 1    289                         372
.....................................................


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



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




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