Climatological Report (Daily)
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410
CDUS46 KSEW 240833
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
133 AM PDT TUE SEP 24 2024

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 23 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         73    414 PM  84    1947  69      4       64
  MINIMUM         60    503 AM  40    1948  52      8       54
  AVERAGE         67                        61      6       59

PRECIPITATION (IN)
  YESTERDAY        T             1.08 2020   0.06  -0.06     0.15
  MONTH TO DATE    0.41                      1.13  -0.72     0.85
  SINCE OCT 1     35.51                     38.86  -3.35    30.12
  SINCE JAN 1     18.36                     22.92  -4.56    15.23

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        0                         5     -5        6
  MONTH TO DATE   65                        64      1       50
  SINCE SEP 1     65                        64      1       50
  SINCE JUL 1    103                       119    -16       62

 COOLING
  YESTERDAY        2                         0      2        0
  MONTH TO DATE   39                        30      9       26
  SINCE SEP 1     39                        30      9       26
  SINCE JAN 1    312                       263     49      378
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   S (190)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     5.6


SKY COVER
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           700 AM
 LOWEST     64           300 PM
 AVERAGE    79

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        89      1974
 MINIMUM TEMPERATURE (F)   52        38      1948


SUNRISE AND SUNSET
SEPTEMBER 24 2024.....SUNRISE   700 AM PDT   SUNSET   701 PM PDT
SEPTEMBER 25 2024.....SUNRISE   701 AM PDT   SUNSET   659 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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