017
CDUS46 KSEW 010127
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
626 PM PDT SAT OCT 31 2009
...............................
...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR OCTOBER 31 2009...
VALID TODAY AS OF 0600 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1945 TO 2009
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 57 130 PM 71 1949 55 2 59
MINIMUM 52 802 AM 30 2006 43 9 50
2003
1935
AVERAGE 55 49 6 55
PRECIPITATION (IN)
TODAY 0.04 1.04 1990 0.16 -0.12 0.35
MONTH TO DATE 5.54 3.19 2.35 2.17
SINCE OCT 1 5.54 3.19 2.35 2.17
SINCE JAN 1 26.73 25.55 1.18 20.11
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0
MONTH TO DATE 0.0 0.0
SINCE OCT 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 10 16 -6 10
MONTH TO DATE 381 383 -2 405
SINCE SEP 1 480 521 -41 528
SINCE JUL 1 545 621 -76 623
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 28 19 9 8
SINCE JAN 1 314 173 141 193
..............................................................
WIND (MPH)
RESULTANT WIND SPEED 15 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 15.8
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 100 AM
LOWEST 64 500 PM
AVERAGE 79
......................................................
THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 54 68 1937
MINIMUM TEMPERATURE (F) 43 27 1935
SUNRISE AND SUNSET
OCTOBER 31 2009.......SUNRISE 752 AM PDT SUNSET 553 PM PDT
NOVEMBER 1 2009......SUNRISE 653 AM PST SUNSET 452 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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