Climatological Report (Monthly)
Issued by NWS Spokane, WA

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CXUS56 KOTX 011319
CLMGEG


CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
615 AM PDT WED NOV 1 2017

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

...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1881 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              87   10/04/1943
 LOW                7   10/31/2002
HIGHEST            66   10/06        MM      MM       67  10/08
                                                          10/02
LOWEST             29   10/31        MM      MM       30  10/12
                        10/30
AVG. MAXIMUM     56.2              58.0    -1.8     54.8
AVG. MINIMUM     37.0              37.2    -0.2     41.9
MEAN             46.6              47.6    -1.0     48.4
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32      3               7.2    -4.2        2
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.23   2016
 MINIMUM            T   1895
TOTALS           1.40              1.18    0.22     6.23
DAILY AVG.       0.05              0.04    0.01     0.20
DAYS >= .01         8               7.8     0.2       22
DAYS >= .10         6               3.5     2.5       18
DAYS >= .50         0               0.5    -0.5        3
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.33   10/21 TO 10/21           10/30 TO 10/31
                                                          10/31 TO 10/31
                                                          10/31 TO 10/31

SNOWFALL (INCHES)
RECORDS
 TOTAL            6.1   MM
TOTALS              T               0.1    -0.1      0.0
SINCE 7/1           T               0.1    -0.1      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL        T   10/13 TO 10/13           10/31 TO 10/31
                                                          10/31 TO 10/31
                                                          10/31 TO 10/31

DEGREE_DAYS
HEATING TOTAL     560               540      20      508
 SINCE 7/1        729               788     -59      696
COOLING TOTAL       0                 1      -1        0
 SINCE 1/1        794               450     344      494
..................................................

WIND (MPH)
AVERAGE WIND SPEED              8.7
HIGHEST WIND SPEED/DIRECTION    44/230    DATE  10/17
HIGHEST GUST SPEED/DIRECTION    53/230    DATE  10/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                2     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      4
HAZE                      5

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

$$

OCTOBER 2017 AS A WHOLE FINISHED SLIGHTLY COOLER AND WETTER THAN
NORMAL ACROSS NORTHEAST WASHINGTON AND NORTH IDAHO PANHANDLE. THE
FIRST 11 DAYS OF THE MONTH WAS UNEVENTFUL BUT THEN A MORE ACTIVE
FALL PATTERN DEVELOPED.  THE 12TH AND 13TH WAS ABORMALLY COOL WITH
RAIN AND MOUNTAIN SNOW. 4 TO 5 INCHES FELL AT MOUNT SPOKANE AND
SCHWEITZER.  FEW MOUNTAIN SITES IN THE CENTRAL PANHANDLE MOUNTAINS
INCLUDING  LOOKOUT PASS REPORTED A FOOT OF SNOW.  ON THE 17TH A
STRONG COLD FRONT BROUGHT WINDY CONDITIONS WITH SEVERAL DOWNED TREES
AND POWER LINES BETWEEN COLVILLE AND SPOKANE WHICH CLOSED SEVERAL
ROADS. WIND GUSTS INCLUDE 53 MPH IN SPOKANE, 46 MPH SANDPOINT, AND
44 MPH COEUR D`ALENE.  A WET PATTERN DEVELOPED FROM THE 18TH THROUGH
THE 22ND WITH THE WETTEST PERIOD LATE ON THE 21ST AND EARLY ON THE
22ND AS A FETCH OF SUBTROPICAL MOISTURE ASSOCIATED WITH AN
ATMOSPHERIC RIVER BECAME AIMED AT THE AREA.  PRICHARD REPORTED 2.34
INCHES...ALONG WITH 1.65 INCHES IN RATHDRUM AND 1.22 INCHES IN
ROSALIA.  WINDY CONDITIONS ALSO DEVELOPED ON THE 22ND WITH A 52 MPH
GUST IN SPANGLE AT 230 AM...WITH 42 MPH IN SPOKANE.  THE WEATHER
PATTERN BECAME MORE QUIET TO FINISH OUT THE MONTH.

NO RECORDS WERE SET DURING THE MONTH AT THE SPOKANE AIRPORT.



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