Climatological Report (Daily)
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964
CDUS46 KSEW 260838
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
138 AM PDT THU SEP 26 2024

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 25 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         65    926 AM  85    1991  69     -4       63
  MINIMUM         55   1159 PM  36    1972  52      3       55
  AVERAGE         60                        60      0       59

PRECIPITATION (IN)
  YESTERDAY        0.10          0.82 2023   0.06   0.04     0.82
  MONTH TO DATE    0.51                      1.25  -0.74     2.28
  SINCE OCT 1     35.61                     38.98  -3.37    31.55
  SINCE JAN 1     18.46                     23.04  -4.58    16.66

SNOWFALL (IN)
  YESTERDAY        0.0          MM      MM                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1      0.3                                       8.1
  SINCE JUL 1      0.0                                       0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        5                         5      0        6
  MONTH TO DATE   70                        74     -4       63
  SINCE SEP 1     70                        74     -4       63
  SINCE JUL 1    108                       129    -21       75

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE   42                        30     12       26
  SINCE SEP 1     42                        30     12       26
  SINCE JAN 1    315                       263     52      378
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     9.6


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           500 PM
 LOWEST     72           300 AM
 AVERAGE    83

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        82      2022
 MINIMUM TEMPERATURE (F)   52        39      1972


SUNRISE AND SUNSET
SEPTEMBER 26 2024.....SUNRISE   702 AM PDT   SUNSET   657 PM PDT
SEPTEMBER 27 2024.....SUNRISE   704 AM PDT   SUNSET   655 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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