Climatological Report (Daily)
Issued by NWS

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CDUS46 KMTR 160825
CLICCR


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1225 AM PST SAT DEC 16 2017


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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 15 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1999 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         61    215 PM  64    2016  55      6       64
  MINIMUM         35    706 AM  29    2013  40     -5       51
  AVERAGE         48                        48      0       58

PRECIPITATION (IN)
  YESTERDAY        0.00                                      1.03
  MONTH TO DATE    0.05                                      2.13
  SINCE OCT 1      2.64                                      5.69
  SINCE JAN 1     21.90                                     16.79

DEGREE DAYS
 HEATING
  YESTERDAY       17                                         7
  MONTH TO DATE  212                                       211
  SINCE DEC 1    212                                       211
  SINCE JUL 1    448                                       503

 COOLING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE DEC 1      0                                         0
  SINCE JAN 1   1424                                      1093
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   N (340)
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    10   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     2.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           700 AM
 LOWEST     55           100 PM
 AVERAGE    74

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


THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   55        65      2013
                                             2011
 MINIMUM TEMPERATURE (F)   40        31      1999


SUNRISE AND SUNSET
DECEMBER 16 2017......SUNRISE   718 AM PST   SUNSET   450 PM PST
DECEMBER 17 2017......SUNRISE   718 AM PST   SUNSET   451 PM PST


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




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