Climatological Report (Monthly)
Issued by NWS Seattle/Tacoma, WA
Issued by NWS Seattle/Tacoma, WA
185 CXUS56 KSEW 011031 CLMSEW CLIMATE REPORT NATIONAL WEATHER SERVICE SEATTLE 331 AM PDT TUE OCT 01 2024 ................................... ...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1894 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 93 09/03/1988 LOW 40 09/30/2019 HIGHEST 89 09/05 MM MM 86 09/02 LOWEST 46 09/30 MM MM 44 09/30 AVG. MAXIMUM 72.7 71.3 1.4 71.1 AVG. MINIMUM 54.9 53.2 1.7 53.1 MEAN 63.8 62.3 1.5 62.1 DAYS MAX >= 90 0 0.1 -0.1 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 5.01 2013 MINIMUM 0.02 1991 TOTALS 1.02 1.74 -0.72 3.69 DAILY AVG. 0.03 0.06 -0.03 0.12 DAYS >= .01 8 8.8 -0.8 11 DAYS >= .10 4 4.6 -0.6 7 DAYS >= .50 1 1.0 0.0 3 DAYS >= 1.00 0 0.1 -0.1 1 DEGREE DAYS HEATING TOTAL 79 106 -27 101 SINCE 7/1 106 162 -56 MM COOLING TOTAL 53 24 29 23 SINCE 1/1 342 210 132 MM ................................................................ WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 1 LIGHT RAIN 12 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 1 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$