904
CXUS56 KSEW 011031
CLMSEW

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
331 AM PDT THU MAY 01 2025

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

...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF APRIL 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1894 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             89   04/18/2016
 LOW              31   04/04/2009
                       04/03/2008
                       04/01/1953
HIGHEST           75   04/18         MM      MM       74  04/20
                                                          04/23
LOWEST            38   04/04         MM      MM       34  04/17
                       04/13
                       04/22
AVG. MAXIMUM    61.9               58.8     3.1     59.1
AVG. MINIMUM    43.8               42.8     1.0     42.6
MEAN            52.8               50.8     2.0     50.8
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.1    -0.1        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        6.27   1993
 MINIMUM        0.64   2004
TOTALS          2.22               2.98   -0.76     2.42
DAILY AVG.      0.08               0.10   -0.02     0.08
DAYS >= .01       10               15.6    -5.6       16
DAYS >= .10        8                8.8    -0.8        7
DAYS >= .50        0                1.3    -1.3        1
DAYS >= 1.00       0                0.2    -0.2        0

SNOWFALL (INCHES)
TOTALS           0.0                                 0.0
SINCE 7/1        2.6                                  MM
SNOWDEPTH AVG.     0                                   0
GREATEST
 SNOW DEPTH        0                                   0  MM

DEGREE DAYS
HEATING TOTAL    357                426     -69      419
 SINCE 7/1      3806               4101    -295       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1         0                  0       0       MM
................................................................


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       3
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       1     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.

$$