719
CXUS56 KSEW 011033
CLMSEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
333 AM PDT SAT AUG 01 2026

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JULY 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            103   07/29/2009
 LOW              43   07/02/1954
                       07/24/1953
                       07/04/1949
HIGHEST           95   07/22         MM      MM       94  07/16
LOWEST            52   07/01         MM      MM       51  07/20
AVG. MAXIMUM    77.2               77.4    -0.2     78.9
AVG. MINIMUM    56.6               56.8    -0.2     57.0
MEAN            66.9               67.1    -0.2     67.9
DAYS MAX >= 90     2                1.8     0.2        2
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        2.39   1983
 MINIMUM           T   2021
TOTALS          0.42               0.60   -0.18     0.01
DAILY AVG.      0.01               0.02   -0.01     0.00
DAYS >= .01        3                4.7    -1.7        1
DAYS >= .10        1                1.8    -0.8        0
DAYS >= .50        0                0.3    -0.3        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.36   07/16 TO 07/16

DEGREE DAYS
HEATING TOTAL     20                 31     -11       21
 SINCE 7/1        20                 36     -16       MM
COOLING TOTAL     87                 96      -9      119
 SINCE 1/1       168                135      33       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.3
HIGHEST WIND SPEED/DIRECTION    24/230    DATE  07/11
HIGHEST GUST SPEED/DIRECTION    33/240    DATE  07/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.53
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             19
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     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.

$$