Climatological Report (Monthly)
Issued by NWS Seattle/Tacoma, WA

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000
CXUS56 KSEW 020353
CLMSEW

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
853 PM PDT FRI SEP 01 2023

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

...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1894 TO 2023

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           94   08/15         MM      MM       89  08/08
                                                          08/25
                                                          08/31
LOWEST            53   08/19         MM      MM       53  08/28
AVG. MAXIMUM    79.5               77.0     2.5     81.3
AVG. MINIMUM    59.9               57.1     2.8     59.5
MEAN            69.7               67.1     2.6     70.4
DAYS MAX >= 90     4                0.8     3.2        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          0.48               1.00   -0.52     0.07
DAILY AVG.      0.02               0.03   -0.01     0.00
DAYS >= .01        6                5.6     0.4        4
DAYS >= .10        3                2.7     0.3        0
DAYS >= .50        0                0.5    -0.5        0
DAYS >= 1.00       0                0.1    -0.1        0

DEGREE DAYS
HEATING TOTAL      3                 23     -20        4
 SINCE 7/1         5                 54     -49       MM
COOLING TOTAL    156                 86      70      171
 SINCE 1/1       318                186     132       MM
................................................................


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN                9     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                      5

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

$$


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