Climatological Report (Daily)
Issued by NWS Portland, OR

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480
CDUS46 KPQR 171141
CLIPDX


CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OREGON
340 AM PST SUN DEC 17 2017


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

...THE PORTLAND OR CLIMATE SUMMARY FOR DECEMBER 16 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1940 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         45    351 PM  60    1974  45      0       38
  MINIMUM         37    225 AM   6    1964  35      2       25
  AVERAGE         41                        40      1       32

PRECIPITATION (IN)
  YESTERDAY        0.02          1.19 1994   0.17  -0.15     0.00
  MONTH TO DATE    0.39                      2.97  -2.58     2.61
  SINCE OCT 1     11.40                     11.60  -0.20    17.75
  SINCE JAN 1     43.10                     33.51   9.59    41.35

SNOWFALL (IN)
  YESTERDAY       MM             1.5  1987
  MONTH TO DATE    0.0
  SINCE DEC 1      0.0
  SINCE JUL 1      0.0

DEGREE DAYS
 HEATING
  YESTERDAY       24                        25     -1       33
  MONTH TO DATE  395                       383     12      435
  SINCE DEC 1    395                       383     12      435
  SINCE JUL 1   1320                      1352    -32     1145

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    700                       424    276      548
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    SE (140)
  AVERAGE WIND SPEED     3.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           300 AM
 LOWEST     83           300 PM
 AVERAGE    92

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


THE PORTLAND OR CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   45        58      1999
 MINIMUM TEMPERATURE (F)   35         7      1964


SUNRISE AND SUNSET
DECEMBER 17 2017......SUNRISE   746 AM PST   SUNSET   428 PM PST
DECEMBER 18 2017......SUNRISE   746 AM PST   SUNSET   428 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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