Climatological Report (Monthly) Issued by NWS Seattle/Tacoma, WA
000
CXUS56 KSEW 020353
CLMSEW
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
853 PM PDT FRI SEP 01 2023
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...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2023...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1894 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 97 08/16/2020
LOW 47 08/17/2000
HIGHEST 94 08/15 MM MM 89 08/08
08/25
08/31
LOWEST 53 08/19 MM MM 53 08/28
AVG. MAXIMUM 79.5 77.0 2.5 81.3
AVG. MINIMUM 59.9 57.1 2.8 59.5
MEAN 69.7 67.1 2.6 70.4
DAYS MAX >= 90 4 0.8 3.2 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 3.05 2004
MINIMUM 0.00 2012
TOTALS 0.48 1.00 -0.52 0.07
DAILY AVG. 0.02 0.03 -0.01 0.00
DAYS >= .01 6 5.6 0.4 4
DAYS >= .10 3 2.7 0.3 0
DAYS >= .50 0 0.5 -0.5 0
DAYS >= 1.00 0 0.1 -0.1 0
DEGREE DAYS
HEATING TOTAL 3 23 -20 4
SINCE 7/1 5 54 -49 MM
COOLING TOTAL 156 86 70 171
SINCE 1/1 318 186 132 MM
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WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 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 1 FOG W/VIS <= 1/4 MILE 0
HAZE 5
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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