


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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551 CDUS46 KMTR 100828 CLILVK CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 128 AM PDT FRI OCT 10 2025 ................................... ...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR OCTOBER 9 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 74 3:36 PM 96 1936 80 -6 83 MINIMUM 52 6:05 AM 39 1941 51 1 55 AVERAGE 63 66 -3 69 PRECIPITATION (IN) YESTERDAY 0.00 0.24 1997 0.02 -0.02 0.00 MONTH TO DATE 0.60 0.13 0.47 0.00 SINCE OCT 1 0.60 0.13 0.47 0.00 SINCE JAN 1 5.22 10.08 -4.86 11.05 DEGREE DAYS HEATING YESTERDAY 2 2 0 0 MONTH TO DATE 3 14 -11 0 SINCE SEP 1 3 29 -26 2 SINCE JUL 1 3 36 -33 4 COOLING YESTERDAY 0 2 -2 4 MONTH TO DATE 23 28 -5 142 SINCE SEP 1 253 198 55 348 SINCE JAN 1 840 824 16 1270 ................................................................... WIND (MPH) RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (260) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (270) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (270) AVERAGE WIND SPEED 5.0 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 11:00 PM LOWEST 39 2:00 PM AVERAGE 64 .......................................................... THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 80 96 1991 MINIMUM TEMPERATURE (F) 51 37 1968 SUNRISE AND SUNSET OCTOBER 10 2025.......SUNRISE 7:11 AM PDT SUNSET 6:36 PM PDT OCTOBER 11 2025.......SUNRISE 7:12 AM PDT SUNSET 6:35 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$