Climatological Report (Monthly)
Issued by NWS Spokane, WA

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CXUS56 KOTX 011721
CLMEAT


CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
854 AM PST TUE JAN 1 2019

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

...THE WENATCHEE WA PANGBORN FIELD CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1959 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              58   12/16/1999
                        12/14/1979
                        12/02/1975
 LOW              -21   12/30/1968
HIGHEST            51   12/18        32      19       43  12/30
                                                          12/03
LOWEST             20   12/27        24      -4        8  12/24
AVG. MAXIMUM     37.4              33.6     3.8     31.1
AVG. MINIMUM     28.0              23.2     4.8     23.9
MEAN             32.7              27.9     4.8     27.5
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      8               0.3     7.7       19
DAYS MIN <= 32     27               9.1    17.9       31
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.29   1996
 MINIMUM         0.10   1976
TOTALS           0.94              1.40   -0.46     0.87
DAILY AVG.       0.03              0.04   -0.01     0.03
DAYS >= .01        10               5.9     4.1        7
DAYS >= .10         3               2.1     0.9        2
DAYS >= .50         0               0.1    -0.1        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.34   12/16 TO 12/16              0.35

DEGREE_DAYS
HEATING TOTAL     993              1148    -155     1156
 SINCE 7/1       2341              2520    -179     2579
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        897               790     107     1058
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.2
HIGHEST WIND SPEED/DIRECTION    37/280    DATE  12/20
HIGHEST GUST SPEED/DIRECTION    46/270    DATE  12/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            3
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY         14

AVERAGE RH (PERCENT)     79

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                9     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      7
HAZE                      1

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

$$

DECEMBER 2018 BROUGHT WARMER THAN NORMAL CONDITIONS OVER NORTH
CENTRAL WASHINGTON.  PRECIPITATION FINISHED WETTER THAN NORMAL IN
THE CASCADES WHILE THE WENATCHEE AND MOSES LAKE AREAS NORTHWARD TO
THE OKANOGAN VALLEY WERE DRIER THAN NORMAL.  THIS WAS BECAUSE
SEVERAL WET STORMS MOVED IN FROM THE WEST DURING THE MONTH WITH
DOWNSLOPE FLOW ROBBING MUCH OF CENTRAL WASHINGTON OF SIGNIFICANT
PRECIPITATION.  A DRY PATTERN STARTED THE MONTH OFF BEFORE THE
REGION TRANSITIONED TO A MILD AND WET PATTERN FROM THE 10TH THROUGH
THE 23RD AS A SERIES OF STORMS MOVED IN FROM THE WEST AND SOUTHWEST.
THE SNOW PILED UP IN THE CASCADES WHERE HOLDEN VILLAGE LOCATED NEAR
THE UPPER END OF LAKE CHELAN PICKED UP 77 INHCES OF SNOW DURING THIS
PERIOD. THE BIGGEST STORM WENT THROUGH ON THE 11TH AND 12TH.  AN
IMPRESSIVE 24 TO 30 INCHES OF SNOW FELL AROUND LAKE
WENATCHEE...PLAIN...AND STEHEKIN WITH A FOOT IN MAZAMA. ANOTHER
ROUND OF SIGNIFICANT SNOW STRUCK THE MOUNTAINS ON THE 17TH AND 18TH
WITH HOLDEN VILLAGE RECEIVING 20 INCHES. DIFFERENT STORY IN
WENATCHEE WHERE ONLY .05 INCHES OF RAIN FELL OVER THE TWO DAY PERIOD
WITH A MILD 51F ON THE 18TH.

A COOLER STORM ON THE 22ND AND 23RD BROUGHT 5 INCHES TO LEAVENWORTH
AND 1.5 INCHES IN EAST WENATCHEE. YET ANOTHER SYSTEM ON THE 26TH BROUGHT
AROUND AN INCH OF SNOW TO WENATCHEE AND 3 INCHES IN OROVILLE.
ON THE 29TH A MOUNTAIN WAVE FORMED ALONG THE EAST SLOPES OF THE
CASCADES WITH STRONG WINDS IN THE MOUNTAINS AND LOCALLY WINDY
CONDITIONS IN THE VALLEYS.  PEAK WIND GUSTS INCLUDE 111
MPH AT TOP OF MISSION RIDGE, 86 MPH DIRTY FACE MOUNTAIN, 58 MPH
TUMWATER MOUNTAIN, AND 35 MPH IN WENATCHEE.  THESE WINDS MIXED DOWN MILD
AIR WITH 49 DEGREES IN PLAIN AND 48 IN WENATCHEE.  THIS WAS A BIG
WARMUP COMPARED TO THE PREVIOUS DAY WHERE WENATCHEE ONLY REACHED 26. THE
MILD AND DRY WEATHER WAS ALSO OBSERVED IN MOSES LAKE WITH A HIGH OF 51F
AND A PEAK WIND OF 44 MPH.

ONE RECORD WAS SET DURING THE MONTH AT THE WENATCHEE AIRPORT WHEN
THE HIGH TEMPERATURE REACHED 50F ON THE 20TH.



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