067
CXUS56 KSEW 011031
CLMSEA
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
331 AM PDT TUE JUL 01 2025
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...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JUNE 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 108 06/28/2021
LOW 38 06/12/1952
HIGHEST 90 06/08 MM MM 86 06/21
LOWEST 47 06/01 MM MM 47 06/16
AVG. MAXIMUM 73.0 71.1 1.9 69.8
AVG. MINIMUM 53.0 53.0 0.0 52.2
MEAN 63.0 62.0 1.0 61.0
DAYS MAX >= 90 1 0.6 0.4 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 3.90 1946
MINIMUM 0.13 1951
TOTALS 0.42 1.45 -1.03 1.19
DAILY AVG. 0.01 0.05 -0.04 0.04
DAYS >= .01 2 9.2 -7.2 8
DAYS >= .10 1 4.3 -3.3 3
DAYS >= .50 0 0.7 -0.7 1
DAYS >= 1.00 0 0.1 -0.1 0
GREATEST
24 HR. TOTAL 0.35 06/21 TO 06/21
DEGREE DAYS
HEATING TOTAL 94 118 -24 132
SINCE 7/1 4421 4375 46 MM
COOLING TOTAL 42 29 13 19
SINCE 1/1 45 39 6 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.5
HIGHEST WIND SPEED/DIRECTION 22/210 DATE 06/18
22/350 06/30
HIGHEST GUST SPEED/DIRECTION 32/210 DATE 06/18
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.56
NUMBER OF DAYS FAIR 8
NUMBER OF DAYS PC 14
NUMBER OF DAYS CLOUDY 8
AVERAGE RH (PERCENT) 62
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 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 4 FOG W/VIS <= 1/4 MILE 0
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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