Climatological Report (Monthly)
Issued by NWS Portland, OR

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CLMMMV


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

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

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

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1894 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
HIGHEST            57                                 53  12/03
LOWEST             24                                 20  12/16
AVG. MAXIMUM     46.5              45.7     0.8     41.3
AVG. MINIMUM     33.1              33.8    -0.7     30.6
MEAN             39.8              39.8     0.0     35.9
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               1.0    -1.0        2
DAYS MIN <= 32     20              11.5     8.5       20
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        17.65   1917
 MINIMUM         0.20   1989
TOTALS           3.38              6.09   -2.71     5.50
DAYS >= .01        13                MM      MM       19
DAYS >= .10         7                MM      MM       11
DAYS >= .50         3                MM      MM        5
DAYS >= 1.00        0                MM      MM        0
GREATEST
 24 HR. TOTAL    0.78   12/29 TO 12/29

DEGREE_DAYS
HEATING TOTAL     773               783     -10      867
 SINCE 7/1       1746              2005    -259     1769
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        507               215     292      363
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.5
RESULTANT WIND SPEED/DIRECTION   2/337
HIGHEST WIND SPEED/DIRECTION    30/240    DATE  12/29
HIGHEST GUST SPEED/DIRECTION    40/250    DATE  12/29

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     83

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE     10
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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