Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS56 KSEW 011033 CLMSEA CLIMATE REPORT NATIONAL WEATHER SERVICE SEATTLE 333 AM PDT TUE AUG 01 2023 ................................... ...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JULY 2023... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1945 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 103 07/29/2009 LOW 43 07/02/1954 07/24/1953 07/04/1949 HIGHEST 91 07/05 MM MM 95 07/29 07/15 07/30 07/31 LOWEST 54 07/10 MM MM 51 07/04 07/12 07/13 AVG. MAXIMUM 80.1 77.4 2.7 80.1 AVG. MINIMUM 57.0 56.8 0.2 58.0 MEAN 68.5 67.1 1.4 69.0 DAYS MAX >= 90 2 1.8 0.2 6 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 2.39 1983 MINIMUM T 2021 TOTALS 0.09 0.60 -0.51 0.18 DAILY AVG. 0.00 0.02 -0.02 0.01 DAYS >= .01 1 4.7 -3.7 5 DAYS >= .10 0 1.8 -1.8 0 DAYS >= .50 0 0.3 -0.3 0 DAYS >= 1.00 0 0.0 0.0 0 GREATEST 24 HR. TOTAL 0.09 07/24 TO 07/24 DEGREE DAYS HEATING TOTAL 2 31 -29 17 SINCE 7/1 2 36 -34 MM COOLING TOTAL 119 96 23 146 SINCE 1/1 183 135 48 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 7.3 HIGHEST WIND SPEED/DIRECTION 21/030 DATE 07/01 HIGHEST GUST SPEED/DIRECTION 28/230 DATE 07/17 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.38 NUMBER OF DAYS FAIR 14 NUMBER OF DAYS PC 16 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 57 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 1 LIGHT RAIN 1 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 0 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$