Climatological Report (Monthly)
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CXUS56 KSEW 011032
CLMSEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
331 AM PDT WED APR 1 2020

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MARCH 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2020

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            62   03/20        MM      MM       79  03/20
                                                          03/19
LOWEST             32   03/15        MM      MM       28  03/05
                        03/14
AVG. MAXIMUM     51.3              53.7    -2.4     57.2
AVG. MINIMUM     38.3              39.3    -1.0     39.7
MEAN             44.8              46.5    -1.7     48.4
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      2               1.6     0.4        4
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.44   2014
 MINIMUM         0.57   1965
TOTALS           3.17              3.72   -0.55     1.37
DAILY AVG.       0.10              0.12   -0.02     0.04
DAYS >= .01        15              16.9    -1.9        8
DAYS >= .10         9              10.6    -1.6        5
DAYS >= .50         2               1.6     0.4        0
DAYS >= 1.00        0               0.3    -0.3        0
GREATEST
 24 HR. TOTAL    0.58   03/29 TO 03/29

SNOWFALL (INCHES)
RECORDS
 TOTAL           18.2   1951
TOTALS              T               0.8    -0.8      0.8
SINCE 7/1         0.7               6.8    -6.1     21.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0                                  0
GREATEST
 SNOW DEPTH         0   MM                             0
 24 HR TOTAL        T   03/14 TO 03/14               0.8

DEGREE_DAYS
HEATING TOTAL     618               574      44      512
 SINCE 7/1       3550              3828    -278     3490
COOLING TOTAL       0                 0       0        6
 SINCE 1/1          0                 0       0        6
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.0
HIGHEST WIND SPEED/DIRECTION    29/010    DATE  03/15
HIGHEST GUST SPEED/DIRECTION    36/200    DATE  03/02

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY         18

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  2
  0
  0
  1
  0
  0
HAZE                      7

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

$$


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