Climatological Report (Daily)
Issued by NWS

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CDUS46 KMTR 170829
CLICCR


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST SUN DEC 17 2017


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

...THE CONCORD AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 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         67R   135 PM  65    2013  55     12       55
                                      2011
  MINIMUM         41    347 AM  31    1999  40      1       38
  AVERAGE         54                        47      7       47

PRECIPITATION (IN)
  YESTERDAY        0.00                                      0.00
  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       11                                        18
  MONTH TO DATE  223                                       229
  SINCE DEC 1    223                                       229
  SINCE JUL 1    459                                       521

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


WIND (MPH)
  RESULTANT WIND SPEED  11   RESULTANT WIND DIRECTION   N (340)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED    11.6


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           200 AM
 LOWEST     18          1200 PM
 AVERAGE    55

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


THE CONCORD AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   55        66      2000
 MINIMUM TEMPERATURE (F)   40        30      2016
                                             2008


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   718 AM PST   SUNSET   451 PM PST
DECEMBER 18 2017......SUNRISE   719 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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