


Climatological Report (Monthly)
Issued by NWS
Issued by NWS
536 CXUS55 KPSR 011159 CLMPHX CLIMATE REPORT NATIONAL WEATHER SERVICE PHOENIX AZ 459 AM MST WED OCT 01 2025 ................................... ...THE PHOENIX AZ CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1895 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 117 09/28/2024 LOW 47 09/21/1965 09/20/1965 09/22/1895 HIGHEST 109 09/02 109 0 LOWEST 67 09/26 67 0 AVG. MAXIMUM 100.5 100.4 0.1 AVG. MINIMUM 79.8 78.1 1.7 MEAN 90.2 89.2 1.0 DAYS MAX >= 90 27 28.4 -1.4 DAYS MAX >= 100 19 DAYS MAX >= 110 0 DAYS MIN <= 32 0 0.0 0.0 DAYS MIN >= 90 0 PRECIPITATION (INCHES) RECORD MAXIMUM 5.41 1939 MINIMUM 0.00 1968 TOTALS 2.26 0.57 1.69 DAYS >= .01 6 2.5 3.5 DAYS >= .10 4 1.2 2.8 DAYS >= .50 1 0.3 0.7 DAYS >= 1.00 1 0.1 0.9 GREATEST 24 HR. TOTAL 1.71 09/26 TO 09/27 DEGREE DAYS HEATING TOTAL 0 0 0 SINCE 7/1 0 0 0 COOLING TOTAL 761 727 34 SINCE 1/1 4753 4284 469 .............................................................. WIND (MPH) AVERAGE WIND SPEED 6.8 HIGHEST GUST SPEED/DIRECTION 56/030 DATE 09/26 AVERAGE RH (PERCENT) 38 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 8 HEAVY RAIN 2 RAIN 3 LIGHT RAIN 7 FOG W/VIS <= 1/4 MILE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$