813
CXUS56 KSEW 011039
CLMSEW

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
339 AM PDT MON SEP 01 2025

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

...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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             97   08/16/2020
 LOW              47   08/17/2000
HIGHEST           93   08/12         MM      MM       88  08/04
LOWEST            54   08/08         MM      MM       50  08/28
                       08/21
AVG. MAXIMUM    79.7               77.0     2.7     77.2
AVG. MINIMUM    59.7               57.1     2.6     57.7
MEAN            69.7               67.1     2.6     67.4
DAYS MAX >= 90     1                0.8     0.2        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.05   2004
 MINIMUM        0.00   2012
TOTALS          1.16               1.00    0.16     2.44
DAILY AVG.      0.04               0.03    0.01     0.08
DAYS >= .01        5                5.6    -0.6        8
DAYS >= .10        4                2.7     1.3        7
DAYS >= .50        0                0.5    -0.5        2
DAYS >= 1.00       0                0.1    -0.1        0

DEGREE DAYS
HEATING TOTAL      2                 23     -21       23
 SINCE 7/1         9                 54     -45       MM
COOLING TOTAL    157                 86      71      105
 SINCE 1/1       324                186     138       MM
................................................................


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       0     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.

$$