Climatological Report (Monthly)
Issued by NWS

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CXUS56 KMTR 012355
CLMLVK


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
355 PM PST TUE JAN 1 2019

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

...THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1930 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              79   MM
 LOW               24   12/05/2013
                        12/08/2009
                        12/06/2009
HIGHEST            63   12/18                         69  12/14
                        12/14
LOWEST             33   12/30                         27  12/22
                        12/11
                        12/02
AVG. MAXIMUM     58.1              56.2     1.9     61.5
AVG. MINIMUM     38.7                               34.2
MEAN             48.4              47.0     1.4     47.8
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  9
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           1.39              2.68   -1.29     0.03
DAILY AVG.       0.04                               0.00
DAYS >= .01         9                                  1
DAYS >= .10         5                                  0
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.32   12/01 TO 12/01           12/20 TO 12/20
                                                          12/31 TO 12/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                                                          12/31 TO 12/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S

DEGREE_DAYS
HEATING TOTAL     507               559     -52      525
 SINCE 7/1        849              1031    -182      887
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        856               830      26     1149
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.9
RESULTANT WIND SPEED/DIRECTION   2/054
HIGHEST WIND SPEED/DIRECTION    32/260    DATE  12/24
HIGHEST GUST SPEED/DIRECTION    43/250    DATE  12/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  6
  0
  0
  0
  0
 10
HAZE                     11

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

$$


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