


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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794 CDUS46 KMTR 040830 CLILVK CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 130 AM PDT SAT OCT 04 2025 ................................... ...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR OCTOBER 3 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 72 3:30 PM 106 1980 82 -10 105 MINIMUM 56 11:59 PM 39 1973 52 4 62 AVERAGE 64 67 -3 84 PRECIPITATION (IN) YESTERDAY 0.00 0.14 1967 0.02 -0.02 0.00 MONTH TO DATE 0.60 0.04 0.56 0.00 SINCE OCT 1 0.60 0.04 0.56 0.00 SINCE JAN 1 5.22 9.99 -4.77 11.05 DEGREE DAYS HEATING YESTERDAY 1 1 0 0 MONTH TO DATE 1 3 -2 0 SINCE SEP 1 1 18 -17 2 SINCE JUL 1 1 25 -24 4 COOLING YESTERDAY 0 3 -3 19 MONTH TO DATE 7 11 -4 56 SINCE SEP 1 237 181 56 262 SINCE JAN 1 824 807 17 1184 ................................................................... WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (250) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (250) AVERAGE WIND SPEED 6.9 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.6 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 89 11:00 PM LOWEST 49 3:00 PM AVERAGE 69 .......................................................... THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 82 106 1980 MINIMUM TEMPERATURE (F) 52 40 1981 SUNRISE AND SUNSET OCTOBER 4 2025.......SUNRISE 7:06 AM PDT SUNSET 6:45 PM PDT OCTOBER 5 2025.......SUNRISE 7:07 AM PDT SUNSET 6:44 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$