Climatological Report (Monthly)
Issued by NWS
Issued by NWS
137 CXUS56 KSEW 011131 CLMSEA CLIMATE REPORT NATIONAL WEATHER SERVICE SEATTLE 331 AM PST THU FEB 01 2024 ................................... ...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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 64 01/15/2018 01/20/1981 LOW 0 01/31/1950 HIGHEST 61 01/28 MM MM 59 01/05 01/29 01/30 01/14 LOWEST 15 01/12 MM MM 24 01/30 01/13 AVG. MAXIMUM 46.5 48.0 -1.5 48.4 AVG. MINIMUM 36.7 37.7 -1.0 38.6 MEAN 41.6 42.8 -1.2 43.5 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 3 0.4 2.6 0 DAYS MIN <= 32 7 7.0 0.0 5 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 12.92 1953 MINIMUM 0.58 1985 TOTALS 6.31 5.78 0.53 3.09 DAILY AVG. 0.22 0.19 0.03 0.10 DAYS >= .01 22 18.7 3.3 18 DAYS >= .10 18 12.7 5.3 10 DAYS >= .50 3 3.9 -0.9 0 DAYS >= 1.00 0 0.9 -0.9 0 GREATEST 24 HR. TOTAL 1.13 01/27 TO 01/28 SNOWFALL (INCHES) RECORDS TOTAL 57.2 1950 TOTALS T 1.8 -1.8 0.1 SINCE 7/1 T 3.7 -3.7 MM SNOWDEPTH AVG. 0 0 DAYS >= 1.0 0 0 GREATEST SNOW DEPTH 0 0 24 HR TOTAL MM MM DEGREE DAYS HEATING TOTAL 698 687 11 658 SINCE 7/1 2297 2462 -165 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 8.1 HIGHEST WIND SPEED/DIRECTION 35/230 DATE 01/09 HIGHEST GUST SPEED/DIRECTION 52/220 DATE 01/09 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.87 NUMBER OF DAYS FAIR 0 NUMBER OF DAYS PC 5 NUMBER OF DAYS CLOUDY 26 AVERAGE RH (PERCENT) 75 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 5 LIGHT RAIN 25 FREEZING RAIN 0 LT FREEZING RAIN 2 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 2 SLEET 0 FOG 23 FOG W/VIS <= 1/4 MILE 2 HAZE 6 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$