342
CDUS46 KSEW 200835
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
135 AM PDT SAT MAY 20 2023
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 19 2023
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 76 510 PM 88 1963 67 9 58
MINIMUM 53 647 AM 38 1975 49 4 43
AVERAGE 65 58 7 51
PRECIPITATION (IN)
YESTERDAY 0.00 0.70 1968 0.06 -0.06 T
MONTH TO DATE 0.91 1.21 -0.30 3.18
SINCE OCT 1 27.67 34.04 -6.37 41.69
SINCE JAN 1 12.78 18.10 -5.32 21.59
SNOWFALL (IN)
YESTERDAY 0.0 T 1993 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 8.1 9.2
SINCE JUL 1 8.1 9.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 7 -7 14
MONTH TO DATE 92 167 -75 266
SINCE MAR 1 1170 1136 34 1348
SINCE JUL 1 4257 4183 74 4605
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 30 0 30 0
SINCE MAR 1 30 1 29 0
SINCE JAN 1 30 1 29 0
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 7.0
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 700 AM
LOWEST 44 800 PM
AVERAGE 67
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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 2023...........SUNRISE 527 AM PDT SUNSET 846 PM PDT
MAY 21 2023...........SUNRISE 526 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.
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