566
CDUS46 KSEW 210856
CLISEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE, WA
156 AM PDT TUE MAY 21 2013
...............................
..THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR MAY 20 2013
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2013
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 67 552 PM 92 1963 66 1 58
MINIMUM 49 257 AM 40 1960 48 1 53
AVERAGE 58 57 1 56
PRECIPITATION (IN)
YESTERDAY 0.00 0.56 2007 0.06 -0.06 0.25
MONTH TO DATE 0.45 1.25 -0.80 1.09
SINCE OCT 1 36.66 32.15 4.51 32.28
SINCE JAN 1 14.82 16.75 -1.93 21.43
DEGREE DAYS
HEATING
YESTERDAY 7 8 -1 9
MONTH TO DATE 96 202 -106 206
SINCE MAR 1 1035 1216 -181 1297
SINCE JUL 1 4176 4470 -294 4684
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 13 0 13 3
SINCE MAR 1 13 0 13 3
SINCE JAN 1 13 0 13 3
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WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 4.1
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 300 AM
LOWEST 42 400 PM
AVERAGE 68
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THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 93 1963
MINIMUM TEMPERATURE (F) 48 39 1960
SUNRISE AND SUNSET
MAY 21 2013...........SUNRISE 525 AM PDT SUNSET 847 PM PDT
MAY 22 2013...........SUNRISE 524 AM PDT SUNSET 848 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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