


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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643 CDUS46 KMTR 050040 CLILVK CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 540 PM PDT FRI APR 04 2025 ................................... ...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR APRIL 4 2025... VALID TODAY AS OF 0500 PM LOCAL TIME. 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) TODAY MAXIMUM 71 MM 87 1959 67 4 55 MINIMUM 37 MM 32 1945 43 -6 40 2023 AVERAGE 54 55 -1 48 PRECIPITATION (IN) TODAY 0.00 1.04 1941 0.06 -0.06 0.84 MONTH TO DATE 0.19 0.22 -0.03 0.84 SINCE OCT 1 8.57 13.45 -4.88 13.19 SINCE JAN 1 4.38 8.22 -3.84 10.00 DEGREE DAYS HEATING TODAY 11 10 1 17 MONTH TO DATE 56 40 16 40 SINCE MAR 1 413 398 15 377 SINCE JUL 1 2123 2339 -216 1954 COOLING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE MAR 1 1 0 1 0 SINCE JAN 1 1 0 1 0 ................................................................... WIND (MPH) RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION N (20) HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (340) HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED 2.3 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 92 3:00 AM LOWEST 26 4:00 PM AVERAGE 59 .......................................................... THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 67 84 1989 MINIMUM TEMPERATURE (F) 43 32 1945 SUNRISE AND SUNSET APRIL 4 2025.........SUNRISE 6:48 AM PDT SUNSET 7:33 PM PDT APRIL 5 2025.........SUNRISE 6:46 AM PDT SUNSET 7:34 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$