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000
CXUS56 KSEW 012336 AAA
CLMSEA

CLIMATE REPORT...AMENDED
NATIONAL WEATHER SERVICE SEATTLE
436 PM PDT MON APR 01 2024

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MARCH 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             79   03/20/2019
                       03/19/2019
 LOW              11   03/04/1955
HIGHEST           74   03/16         MM      MM       65  03/18
LOWEST            28   03/06         MM      MM       28  03/01
AVG. MAXIMUM    54.1               54.2    -0.1     51.9
AVG. MINIMUM    40.2               39.9     0.3     37.1
MEAN            47.1               47.1     0.0     44.5
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     3                1.9     1.1        5
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        9.44   2014
 MINIMUM        0.57   1965
TOTALS          2.36               4.17   -1.81     2.56
DAILY AVG.      0.08               0.13   -0.05     0.08
DAYS >= .01       16               17.1    -1.1       15
DAYS >= .10       10               10.9    -0.9        9
DAYS >= .50        1                2.1    -1.1        0
DAYS >= 1.00       0                0.4    -0.4        0
GREATEST
 24 HR. TOTAL   0.54 ON 3/27

SNOWFALL (INCHES)
RECORDS
 TOTAL          18.2   1951
TOTALS           0.3                0.4    -0.1        T
SINCE 7/1        0.3                6.3    -6.0       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                                   0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL     0.3   03/04 TO 03/04                 MM

DEGREE DAYS
HEATING TOTAL    549                557      -8      592
 SINCE 7/1      3439               3604    -165       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
HIGHEST WIND SPEED/DIRECTION    32/200    DATE  03/09
HIGHEST GUST SPEED/DIRECTION    44/200    DATE  03/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.68
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         17

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               1
HEAVY RAIN                0     RAIN                       5
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                4     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$