


Climatological Report (Monthly)
Issued by NWS
Issued by NWS
263 CXUS56 KSGX 010944 CLMFUL CLIMATE REPORT NATIONAL WEATHER SERVICE SAN DIEGO, CA 244 AM PDT MON SEP 01 2025 ................................... ...THE FULLERTON AIRPORT CA CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 107 08/18/2020 08/27/2009 08/17/2020 LOW 41 08/06/2013 HIGHEST 96 08/31 86 10 97 08/05 LOWEST 63 08/03 63 0 63 08/25 08/30 AVG. MAXIMUM 86.6 86.7 -0.1 87.5 AVG. MINIMUM 66.6 66.4 0.2 66.3 MEAN 76.6 76.5 0.1 76.9 DAYS MAX >= 90 11 9.4 1.6 9 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 2.61 1977 MINIMUM 0.00 2024 TOTALS T 0.02 -0.02 0.00 DAILY AVG. T 0.00 -0.00 0.00 DAYS >= .01 0 0.2 -0.2 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 367 358 9 375 SINCE 1/1 957 1023 -66 MM FREEZE DATES RECORD EARLIEST MM LATEST MM EARLIEST 12/31 LATEST MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 3.8 RESULTANT WIND SPEED/DIRECTION 3/180 HIGHEST WIND SPEED/DIRECTION 18/090 DATE 08/23 HIGHEST GUST SPEED/DIRECTION 26/090 DATE 08/23 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.20 NUMBER OF DAYS FAIR 24 NUMBER OF DAYS PC 7 NUMBER OF DAYS CLOUDY 0 AVERAGE RH (PERCENT) 64 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 5 FOG W/VIS <= 1/4 MILE 0 HAZE 4 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$