Climatological Report (Monthly)
Issued by NWS Portland, OR

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CXUS56 KPQR 020119
CLMHIO


CLIMATE REPORT
NATIONAL WEATHER SERVICE PORTLAND OREGON
519 PM PST MON JAN 1 2018

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

...THE HILLSBORO OR CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1929 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST            55                                 50  12/20
                                                          12/03
LOWEST             21                                 17  12/16
AVG. MAXIMUM     45.4              45.0     0.4     40.3
AVG. MINIMUM     30.4              32.1    -1.7     29.2
MEAN             37.9              38.5    -0.6     34.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               1.1    -1.1        1
DAYS MIN <= 32     21              14.3     6.7       24
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        14.60   2015
 MINIMUM         1.08   2013
TOTALS           2.92              6.74   -3.82     4.77
DAYS >= .01        15                MM      MM       18
DAYS >= .10         6                MM      MM       12
DAYS >= .50         2                MM      MM        3
DAYS >= 1.00        0                MM      MM        0
GREATEST
 24 HR. TOTAL    0.85   12/19 TO 12/19

DEGREE_DAYS
HEATING TOTAL     831               820      11      927
 SINCE 7/1       1910              2121    -211     1898
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        496               198     298      336
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              3.8
RESULTANT WIND SPEED/DIRECTION   1/119
HIGHEST WIND SPEED/DIRECTION    24/180    DATE  12/19
HIGHEST GUST SPEED/DIRECTION    33/080    DATE  12/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60

AVERAGE RH (PERCENT)     81

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      25     FOG W/VIS <= 1/4 MILE     11
HAZE                      1

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

$$



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