Climatological Report (Daily)
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
589
CDUS46 KSEW 250116
CLISEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
616 PM PDT SUN AUG 24 2025

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR AUGUST 24 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         90R   459 PM  88    1982  77     13       62
  MINIMUM         63    500 AM  45    1951  57      6       55
  AVERAGE         77                        67     10       59

PRECIPITATION (IN)
  TODAY            0.00          1.00 2004   0.04  -0.04     0.34
  MONTH TO DATE    1.14                      0.69   0.45     1.52
  SINCE OCT 1     28.91                     37.45  -8.54    35.17
  SINCE JAN 1     15.51                     21.51  -6.00    18.02

SNOWFALL (IN)
  TODAY           MM            MM      MM                   0.0
  MONTH TO DATE    0.0                                       0.0
  SINCE OCT 1      2.3                                       0.3
  SINCE JUL 1      0.0                                       0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY            0                         1     -1        6
  MONTH TO DATE    2                        17    -15       20
  SINCE JUN 1    117                       166    -49      159
  SINCE JUL 1     23                        48    -25       27

 COOLING
  TODAY           12                         2     10        0
  MONTH TO DATE   98                        84     14       69
  SINCE JUN 1    259                       209     50      252
  SINCE JAN 1    262                       219     43      259
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION  NW (330)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED     4.3


SKY COVER
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    73           600 AM
 LOWEST     26           400 PM
 AVERAGE    50

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        91      2016
 MINIMUM TEMPERATURE (F)   57        45      1954


SUNRISE AND SUNSET
AUGUST 24 2025........SUNRISE   618 AM PDT   SUNSET   804 PM PDT
AUGUST 25 2025........SUNRISE   619 AM PDT   SUNSET   802 PM PDT


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




$$