128
CXUS56 KSEW 011035
CLMSEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
335 AM PDT WED JUL 01 2026

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JUNE 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            108   06/28/2021
 LOW              38   06/12/1952
HIGHEST           91   06/15         MM      MM       90  06/08
LOWEST            47   06/07         MM      MM       47  06/01
AVG. MAXIMUM    73.7               71.1     2.6     73.0
AVG. MINIMUM    54.2               53.0     1.2     53.0
MEAN            63.9               62.0     1.9     63.0
DAYS MAX >= 90     2                0.6     1.4        1
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        3.90   1946
 MINIMUM        0.13   1951
TOTALS          1.34               1.45   -0.11     0.42
DAILY AVG.      0.04               0.05   -0.01     0.01
DAYS >= .01        5                9.2    -4.2        2
DAYS >= .10        2                4.3    -2.3        1
DAYS >= .50        2                0.7     1.3        0
DAYS >= 1.00       0                0.1    -0.1        0
GREATEST
 24 HR. TOTAL   1.19   06/08 TO 06/09

DEGREE DAYS
HEATING TOTAL     95                118     -23       94
 SINCE 7/1      4010               4375    -365       MM
COOLING TOTAL     71                 29      42       42
 SINCE 1/1        81                 39      42       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.2
HIGHEST WIND SPEED/DIRECTION    28/210    DATE  06/09
HIGHEST GUST SPEED/DIRECTION    40/210    DATE  06/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.59
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     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                       6     FOG W/VIS <= 1/4 MILE      0
HAZE                      4

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

$$