Climatological Report (Monthly)
Issued by NWS

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CXUS56 KPDT 011540 RRA
CLMYKM

CLIMATE REPORT
NATIONAL WEATHER SERVICE PENDLETON OREGON
738 AM PST MON JAN 01 2018

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

...THE YAKIMA WA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1909 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL

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

TEMPERATURE (F)
RECORD
 HIGH              67  12/26/1980
 LOW              -17  12/17/1964
HIGHEST            54  12/19       52         2            55  12/ 3
LOWEST             12  12/24        5         7            -4  12/18
AVG. MAXIMUM     38.5            35.8       2.7          35.5
AVG. MINUMUM     25.3            21.3       4.0          16.5
MEAN             31.9            28.5       3.4          26.0
DAYS MAX >= 90      0               0         0             0
DAYS MAX <= 32      5              11        -6            14
DAYS MIN <= 32     31              29         2            31
DAYS MIN <= 0       0               1        -1            31


PRECIPITATION (INCHES)
RECORD
 MAXIMUM          5.59   1996
 MINIMUM          0.07   1976
TOTALS            0.36            1.53     -1.17          0.87
DAILY AVG.        0.01            0.05     -0.04          0.03
DAYS >=  0.01        8              10        -2             9
DAYS >=  0.10        1               5        -4             3
DAYS >=  0.50        0               0         0             0
DAYS >=  1.00        0               0         0             0
GREATEST
 24 HR. TOTAL     0.13  12/24



SNOWFALL (INCHES)
RECORD
 MAXIMUM          37.5   1964
 MINIMUM             T   2014
TOTALS             1.2             9.7      -8.5           7.4
SINCE 7/1          1.6            13.4     -11.8           7.4
DAYS >=  TRACE       3               6        -2            10
DAYS >=  1.0         1               3        -2             2
GREATEST
 24 HR. TOTAL      1.0  12/24


DEGREE DAYS
HEATING TOTAL     1017            1128      -111          1201
 SINCE 7/1        2286            2661      -375          2220
COOLING TOTAL        0               0         0             0
 SINCE 1/1        1054             463       591           774

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

WIND (MPH)
AVERAGE WIND SPEED                     2.6
RESULTANT WIND SPEED/DIRECTION         2/221
HIGHEST WIND SPEED/DIRECTION          31/260      DATE          12/30
HIGHEST GUST SPEED/DIRECTION          40/270      DATE          12/30


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM               0    MIXED PRECIP                           0
HEAVY RAIN                 0    RAIN                                   0
LIGHT RAIN                 4    FREEZING RAIN                          1
LT FREEZING RAIN           3    HAIL                                   0
HEAVY SNOW                 0    SNOW                                   0
LIGHT SNOW                 6    SLEET                                  2
FOG                       17    FOG W/VIS <=1/4 MILE                   4
HAZE                       9

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

$$


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