Climatological Report (Monthly)
Issued by NWS
Issued by NWS
532 CXUS56 KSEW 011050 CLMSEA CLIMATE REPORT NATIONAL WEATHER SERVICE SEATTLE 350 AM PDT SUN SEP 01 2024 ................................... ...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2024... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1945 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 99 08/09/1981 08/09/1960 LOW 44 08/14/1955 08/13/1955 08/27/1952 HIGHEST 87 08/01 MM MM 95 08/15 08/08 08/16 LOWEST 50 08/28 MM MM 52 08/19 AVG. MAXIMUM 76.1 77.6 -1.5 79.9 AVG. MINIMUM 57.2 57.2 0.0 59.9 MEAN 66.7 67.4 -0.7 69.9 DAYS MAX >= 90 0 1.2 -1.2 4 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 4.59 1975 MINIMUM T 2012 TOTALS 1.66 0.97 0.69 0.27 DAILY AVG. 0.05 0.03 0.02 0.01 DAYS >= .01 7 4.9 2.1 8 DAYS >= .10 5 2.3 2.7 1 DAYS >= .50 0 0.6 -0.6 0 DAYS >= 1.00 0 0.1 -0.1 0 GREATEST 24 HR. TOTAL 0.62 08/23 TO 08/24 DEGREE DAYS HEATING TOTAL 29 24 5 10 SINCE 7/1 36 55 -19 MM COOLING TOTAL 83 98 -15 169 SINCE 1/1 273 233 40 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 7.1 HIGHEST WIND SPEED/DIRECTION 29/200 DATE 08/17 HIGHEST GUST SPEED/DIRECTION 44/250 DATE 08/18 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.54 NUMBER OF DAYS FAIR 8 NUMBER OF DAYS PC 16 NUMBER OF DAYS CLOUDY 7 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 3 LIGHT RAIN 9 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 13 FOG W/VIS <= 1/4 MILE 1 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$