Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 300844
CLILVK
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
144 AM PDT TUE SEP 30 2025
...................................
...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 29 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1930 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 76 3:30 PM 102 2010 83 -7 86
MINIMUM 64 11:20 PM 39 1986 53 11 56
AVERAGE 70 68 2 71
PRECIPITATION (IN)
YESTERDAY 0.00 0.39 1989 0.01 -0.01 0.00
MONTH TO DATE 0.13 0.07 0.06 0.01
SINCE OCT 1 8.81 15.17 -6.36 14.24
SINCE JAN 1 4.62 9.94 -5.32 11.05
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 9 -9 2
SINCE SEP 1 0 9 -9 2
SINCE JUL 1 0 16 -16 4
COOLING
YESTERDAY 5 4 1 6
MONTH TO DATE 226 167 59 196
SINCE SEP 1 226 167 59 196
SINCE JAN 1 813 793 20 1118
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 8.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 4:00 AM
LOWEST 48 3:00 PM
AVERAGE 65
..........................................................
THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 101 2020
MINIMUM TEMPERATURE (F) 53 35 1950
SUNRISE AND SUNSET
SEPTEMBER 30 2025.....SUNRISE 7:02 AM PDT SUNSET 6:51 PM PDT
OCTOBER 1 2025.......SUNRISE 7:03 AM PDT SUNSET 6:50 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$