


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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503 CDUS46 KMTR 130828 CLILVK CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 128 AM PDT WED AUG 13 2025 ................................... ...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR AUGUST 12 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 87 2:30 PM 105 1998 88 -1 84 MINIMUM 56 5:51 AM 44 1972 57 -1 55 AVERAGE 72 72 0 70 PRECIPITATION (IN) YESTERDAY 0.00 0.21 1965 0.01 -0.01 0.00 MONTH TO DATE 0.00 0.03 -0.03 T SINCE OCT 1 8.68 15.04 -6.36 14.23 SINCE JAN 1 4.49 9.81 -5.32 11.04 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 13 37 -24 4 SINCE JUL 1 0 4 -4 2 COOLING YESTERDAY 7 7 0 5 MONTH TO DATE 105 84 21 129 SINCE JUN 1 359 435 -76 748 SINCE JAN 1 416 487 -71 792 ................................................................... WIND (MPH) RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION W (290) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NW (300) AVERAGE WIND SPEED 9.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 90 11:00 PM LOWEST 31 3:00 PM AVERAGE 61 .......................................................... THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 88 110 1933 MINIMUM TEMPERATURE (F) 57 47 1972 SUNRISE AND SUNSET AUGUST 13 2025........SUNRISE 6:22 AM PDT SUNSET 8:02 PM PDT AUGUST 14 2025........SUNRISE 6:22 AM PDT SUNSET 8:01 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$