


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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709 CDUS46 KMTR 290835 CLILVK CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 135 AM PDT FRI AUG 29 2025 ................................... ...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR AUGUST 28 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 91 3:16 PM 107 2017 87 4 96 MINIMUM 56 6:03 AM 44 1980 56 0 60 AVERAGE 74 72 2 78 PRECIPITATION (IN) YESTERDAY 0.00 0.14 1949 0.01 -0.01 0.00 MONTH TO DATE 0.00 0.08 -0.08 T SINCE OCT 1 8.68 15.09 -6.41 14.23 SINCE JAN 1 4.49 9.86 -5.37 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 9 7 2 13 MONTH TO DATE 239 196 43 239 SINCE JUN 1 493 547 -54 858 SINCE JAN 1 550 599 -49 902 ................................................................... WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (280) HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (290) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 7.0 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.1 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 89 3:00 AM LOWEST 24 3:00 PM AVERAGE 57 .......................................................... THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 87 104 2008 2009 MINIMUM TEMPERATURE (F) 56 44 1969 SUNRISE AND SUNSET AUGUST 29 2025........SUNRISE 6:35 AM PDT SUNSET 7:40 PM PDT AUGUST 30 2025........SUNRISE 6:36 AM PDT SUNSET 7:39 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$