Climatological Report (Daily)
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CDUS46 KSEW 010841
CLISEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1241 AM PST WED MAR 1 2017


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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR FEBRUARY 28 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         47    319 PM  68    1968  51     -4       50
  MINIMUM         33    722 AM  24    1971  38     -5       40
                                      1951
  AVERAGE         40                        44     -4       45

PRECIPITATION (IN)
  YESTERDAY        0.01          1.46 1972   0.12  -0.11     0.82
  MONTH TO DATE    8.85                      3.50   5.35     5.88
  SINCE OCT 1     33.47                     24.47   9.00    37.72
  SINCE JAN 1     13.07                      9.07   4.00    13.33

SNOWFALL (IN)
  YESTERDAY        0.0           7.0  1962                   0.0
  MONTH TO DATE    7.2                                       0.0
  SINCE OCT 1     11.2                                        T
  SINCE JUL 1     11.2                                        T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       25                        21      4       20
  MONTH TO DATE  656                       606     50      485
  SINCE DEC 1   2322                      2071    251     1816
  SINCE JUL 1   3173                      3254    -81     2827

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     8.7


SKY COVER
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 AM
 LOWEST     49           300 PM
 AVERAGE    75

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


THE SEATTLE-TACOMA WA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   52        62      1990
                                             1968
 MINIMUM TEMPERATURE (F)   38        23      1971


SUNRISE AND SUNSET
MARCH  1 2017.........SUNRISE   649 AM PST   SUNSET   555 PM PST
MARCH  2 2017.........SUNRISE   647 AM PST   SUNSET   556 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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