910
CDUS46 KSEW 200832
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
132 AM PDT TUE MAY 20 2025
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 19 2025
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)
YESTERDAY
MAXIMUM 61 108 PM 88 1963 67 -6 62
MINIMUM 47 700 AM 38 1975 49 -2 43
AVERAGE 54 58 -4 53
PRECIPITATION (IN)
YESTERDAY 0.24 0.70 1968 0.06 0.18 0.00
MONTH TO DATE 0.60 1.21 -0.61 0.54
SINCE OCT 1 27.11 34.04 -6.93 31.30
SINCE JAN 1 13.71 18.10 -4.39 14.15
SNOWFALL (IN)
YESTERDAY 0.0 T 1993 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 2.3 0.3
SINCE JUL 1 2.3 0.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 11 7 4 12
MONTH TO DATE 182 167 15 170
SINCE MAR 1 1109 1136 -27 1139
SINCE JUL 1 4266 4183 83 4050
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 7
SINCE MAR 1 0 1 -1 7
SINCE JAN 1 0 1 -1 7
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 13.7
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 700 AM
LOWEST 55 100 PM
AVERAGE 76
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 92 1963
MINIMUM TEMPERATURE (F) 50 40 1960
SUNRISE AND SUNSET
MAY 20 2025...........SUNRISE 526 AM PDT SUNSET 846 PM PDT
MAY 21 2025...........SUNRISE 525 AM PDT SUNSET 847 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page