CXUS56 KSEW 012336 AAA CLMSEA CLIMATE REPORT...AMENDED NATIONAL WEATHER SERVICE SEATTLE 436 PM PDT MON APR 01 2024 ................................... ...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MARCH 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 79 03/20/2019 03/19/2019 LOW 11 03/04/1955 HIGHEST 74 03/16 MM MM 65 03/18 LOWEST 28 03/06 MM MM 28 03/01 AVG. MAXIMUM 54.1 54.2 -0.1 51.9 AVG. MINIMUM 40.2 39.9 0.3 37.1 MEAN 47.1 47.1 0.0 44.5 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 3 1.9 1.1 5 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 9.44 2014 MINIMUM 0.57 1965 TOTALS 2.36 4.17 -1.81 2.56 DAILY AVG. 0.08 0.13 -0.05 0.08 DAYS >= .01 16 17.1 -1.1 15 DAYS >= .10 10 10.9 -0.9 9 DAYS >= .50 1 2.1 -1.1 0 DAYS >= 1.00 0 0.4 -0.4 0 GREATEST 24 HR. TOTAL 0.54 ON 3/27 SNOWFALL (INCHES) RECORDS TOTAL 18.2 1951 TOTALS 0.3 0.4 -0.1 T SINCE 7/1 0.3 6.3 -6.0 MM SNOWDEPTH AVG. 0 0 DAYS >= 1.0 0 0 GREATEST SNOW DEPTH 0 0 24 HR TOTAL 0.3 03/04 TO 03/04 MM DEGREE DAYS HEATING TOTAL 549 557 -8 592 SINCE 7/1 3439 3604 -165 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 7.9 HIGHEST WIND SPEED/DIRECTION 32/200 DATE 03/09 HIGHEST GUST SPEED/DIRECTION 44/200 DATE 03/09 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.68 NUMBER OF DAYS FAIR 5 NUMBER OF DAYS PC 9 NUMBER OF DAYS CLOUDY 17 AVERAGE RH (PERCENT) 69 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 1 HEAVY RAIN 0 RAIN 5 LIGHT RAIN 17 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 1 LIGHT SNOW 4 SLEET 0 FOG 14 FOG W/VIS <= 1/4 MILE 0 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$