


Climatological Report (Monthly)
Issued by NWS
Issued by NWS
266 CXUS56 KSGX 010944 CLMSNA CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 244 AM PDT MON SEP 01 2025 ................................... ...THE JOHN WAYNE AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1999 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 100 08/18/2020 LOW 58 08/27/2003 HIGHEST 90 08/29 79 11 92 08/20 LOWEST 63 08/01 64 -1 64 08/01 AVG. MAXIMUM 80.7 80.4 0.3 82.0 AVG. MINIMUM 66.8 67.1 -0.3 67.2 MEAN 73.8 73.8 -0.0 74.6 DAYS MAX >= 90 1 2.0 -1.0 1 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MAX >= 45 31 31 DAYS MIN <= 32 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM T 2023 MINIMUM 0.00 2024 TOTALS TR 0.01 -0.01 0.00 DAILY AVG. T 0.00 -0.00 0.00 DAYS >= .01 0 0.1 -0.1 0 DAYS >= .10 0 0.0 0.0 0 DAYS >= .50 0 0.0 0.0 0 DAYS >= 1.00 0 0.0 0.0 0 DAYS >= %-5.2F 0 0 DAYS >= %-5.2F 0 0 GREATEST 24 HR. TOTAL T 08/23 TO 08/23 0.00 07/31 TO 07/31 STORM TOTAL 0.00 0.00 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 0 0 MM COOLING TOTAL 282 271 11 308 SINCE 1/1 688 706 -18 MM FREEZE DATES RECORD EARLIEST MM LATEST MM EARLIEST MM LATEST MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 5.7 RESULTANT WIND SPEED/DIRECTION 5/200 HIGHEST WIND SPEED/DIRECTION 17/200 DATE 08/22 17/180 08/23 17/190 08/27 HIGHEST GUST SPEED/DIRECTION 25/180 DATE 08/10 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.40 NUMBER OF DAYS FAIR 13 NUMBER OF DAYS PC 17 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 71 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 0 LIGHT RAIN 1 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 14 FOG W/VIS <= 1/4 MILE 1 HAZE 17 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$