Climatological Report (Monthly)
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000
CXUS56 KSEW 011034
CLMSEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
334 AM PDT THU SEP 01 2022

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2022...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2022

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             99   08/09/1981
                       08/09/1960
 LOW              44   08/14/1955
                       08/13/1955
                       08/27/1952
HIGHEST           91   08/08         MM      MM       95  08/12
LOWEST            53   08/03         MM      MM       50  08/30
                       08/28
AVG. MAXIMUM    80.9               77.6     3.3     77.8
AVG. MINIMUM    59.1               57.2     1.9     57.1
MEAN            70.0               67.4     2.6     67.5
DAYS MAX >= 90     4                1.2     2.8        3
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        4.59   1975
 MINIMUM           T   2012
TOTALS          0.05               0.97   -0.92     0.11
DAILY AVG.      0.00               0.03   -0.03     0.00
DAYS >= .01        2                4.9    -2.9        4
DAYS >= .10        0                2.3    -2.3        0
DAYS >= .50        0                0.6    -0.6        0
DAYS >= 1.00       0                0.1    -0.1        0
GREATEST
 24 HR. TOTAL   0.03   08/10 TO 08/10

DEGREE DAYS
HEATING TOTAL      3                 24     -21       30
 SINCE 7/1        20                 55     -35       MM
COOLING TOTAL    167                 98      69      116
 SINCE 1/1       344                233     111       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    18/230    DATE  08/03
                                18/020          08/04
                                18/350          08/23
HIGHEST GUST SPEED/DIRECTION    27/350    DATE  08/23

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.44
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

$$


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