Climatological Report (Monthly)
Issued by NWS
Issued by NWS
885 CXUS56 KSEW 030326 CCA CLMSEA CLIMATE REPORT...CORRECTED NATIONAL WEATHER SERVICE SEATTLE 825 PM PDT SUN SEP 02 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 75.9 77.6 -1.7 79.9 AVG. MINIMUM 57.2 57.2 0.0 59.9 MEAN 66.6 67.4 -0.8 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. $$