Climatological Report (Daily)
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000
CDUS46 KMTR 190830
CLILVK


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT TUE SEP 19 2017


...................................

...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1930 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         77   1236 PM 103    1939  84     -7      100
  MINIMUM         59   1159 PM  41    1978  55      4       55
  AVERAGE         68                        70     -2       78

PRECIPITATION (IN)
  YESTERDAY        0.00          0.36 1959   0.01  -0.01     0.00
  MONTH TO DATE    T                         0.07  -0.07     0.00
  SINCE OCT 1     25.52                     15.56   9.96    15.38
  SINCE JAN 1     19.06                      9.98   9.08    10.38

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    0                         1     -1        5
  SINCE SEP 1      0                         1     -1        5
  SINCE JUL 1      0                         8     -8        5

 COOLING
  YESTERDAY        3                         5     -2       13
  MONTH TO DATE  205                       112     93       91
  SINCE SEP 1    205                       112     93       91
  SINCE JAN 1   1066                       737    329      857
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION   W (250)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    11.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           500 AM
 LOWEST     53           500 PM
 AVERAGE    73

..........................................................


THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       103      2000
 MINIMUM TEMPERATURE (F)   55        41      1965


SUNRISE AND SUNSET
SEPTEMBER 19 2017.....SUNRISE   653 AM PDT   SUNSET   708 PM PDT
SEPTEMBER 20 2017.....SUNRISE   654 AM PDT   SUNSET   707 PM PDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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