086
CXUS56 KSEW 011032
CLMSEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
332 AM PDT WED APR 01 2026

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MARCH 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026

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           58   03/20         MM      MM       73  03/25
                       03/27
                       03/31
LOWEST            32   03/13         MM      MM       34  03/14
                       03/30
                                                          03/18
AVG. MAXIMUM    51.9               54.2    -2.3     53.6
AVG. MINIMUM    39.7               39.9    -0.2     40.5
MEAN            45.8               47.1    -1.3     47.1
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     2                1.9     0.1        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        9.44   2014
 MINIMUM        0.57   1965
TOTALS          6.71               4.17    2.54     5.16
DAILY AVG.      0.22               0.13    0.09     0.17
DAYS >= .01       20               17.1     2.9       21
DAYS >= .10       12               10.9     1.1       12
DAYS >= .50        4                2.1     1.9        3
DAYS >= 1.00       2                0.4     1.6        0
GREATEST
 24 HR. TOTAL   1.45   03/12 TO 03/13

SNOWFALL (INCHES)
RECORDS
 TOTAL          18.2   1951
TOTALS           3.0                0.4     2.6      0.0
SINCE 7/1        3.0                6.3    -3.3       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        1                                  MM
GREATEST
 SNOW DEPTH        3   03/14                           0
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL    585                557      28      546
 SINCE 7/1      3335               3604    -269       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.9
HIGHEST WIND SPEED/DIRECTION    35/210    DATE  03/11
HIGHEST GUST SPEED/DIRECTION    54/210    DATE  03/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.79
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY         22

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN               23     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      0
FOG                      21     FOG W/VIS <= 1/4 MILE      4
HAZE                      1

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

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