Climatological Report (Monthly)
Issued by NWS
Issued by NWS
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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