Climatological Report (Monthly)
Issued by NWS
Issued by NWS
789
CXUS56 KSTO 011917
CLMMOD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SACRAMENTO
1217 PM PDT WED OCT 01 2025
...................................
...THE MODESTO CA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1931 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 112 09/06/2022
LOW 40 09/26/1948
HIGHEST 103 09/02 MM MM
LOWEST 59 09/26 MM MM
AVG. MAXIMUM 88.8
AVG. MINIMUM 63.2
MEAN 76.0
DAYS MAX >= 90 11 15.0 -4.0
DAYS MAX <= 32 0 0.0 0.0
DAYS MIN <= 32 0 0.0 0.0
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 0.08 2022
MINIMUM 0.00 2024
TOTALS 0.20 0.06 0.14 0.00
DAYS >= .01 1
DAYS >= .10 1
DAYS >= .50 0
DAYS >= 1.00 0
DEGREE DAYS
HEATING TOTAL 0 4 -4
SINCE 7/1 0 0 0
COOLING TOTAL 339 269 70
SINCE 1/1 1691 1546 145
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WIND (MPH)
AVERAGE WIND SPEED 6.4
HIGHEST WIND SPEED/DIRECTION 21/300 DATE 09/25
HIGHEST GUST SPEED/DIRECTION 26/300 DATE 09/25
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.07
NUMBER OF DAYS FAIR 29
NUMBER OF DAYS PC 1
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 56
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 3 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 9
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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