Climatological Report (Monthly)
Issued by NWS Spokane, WA

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CXUS46 KOTX 032043
CLMLWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE, WA
1243 PM PST SUN DEC 3 2017

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

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 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              74   11/13/1999
                        11/05/1934
                        11/03/1975
 LOW               -3   11/15/1955
                        11/14/1955
HIGHEST            63   11/23        MM      MM       70  11/08
LOWEST             26   11/07        MM      MM       27  11/18
AVG. MAXIMUM     50.4              48.2     2.2     54.8
AVG. MINIMUM     35.4              34.1     1.3     39.4
MEAN             42.9              41.1     1.8     47.1
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               1.1    -1.1        0
DAYS MIN <= 32      6              10.3    -4.3        4
DAYS MIN <= 0       0               0.1    -0.1        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.15   1926
 MINIMUM            T   1929
TOTALS           1.76              1.18    0.58     0.63
DAILY AVG.       0.06              0.04    0.02     0.02
DAYS >= .01        15              11.4     3.6       12
DAYS >= .10         8               3.9     4.1        1
DAYS >= .50         0               0.2    -0.2        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.31   11/20 TO 11/20           11/14 TO 11/15

SNOWFALL (INCHES)
RECORDS
 TOTAL           15.9   1921
TOTALS              T               1.8    -1.8      0.0
SINCE 7/1           T               1.8    -1.8      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.7    -0.7        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL        T   11/06 TO 11/06           11/30 TO 11/30

DEGREE_DAYS
HEATING TOTAL     656               715     -59      530
 SINCE 7/1       1166              1240     -74      949
COOLING TOTAL       0                 0       0        0
 SINCE 1/1       1160               807     353      863
.................................................

WIND (MPH)
AVERAGE WIND SPEED              5.2
HIGHEST WIND SPEED/DIRECTION    33/260    DATE  11/23
HIGHEST GUST SPEED/DIRECTION    42/250    DATE  11/23

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      3
HAZE                      1

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

$$

NOVEMBER 2017 BROUGHT A MIXED BAG OF WEATHER TO SOUTHEAST WASHINGTON
AND THE SOUTH IDAHO PANHANDLE.  THE MONTH STARTED OFF ON A COLD NOTE
AS AN EARLY SEASON ARCTIC BOUNDARY DROPPED SOUTH TOWARDS THE
PALOUSE.  THE IDAHO PALOUSE ON THE 4TH AND 5TH WAS HIT WAS AN EARLY
SEASON SNOW WITH 3 INCHES IN MOSCOW...1 INCH IN PULLMAN...AND A
TRACE IN LEWISTON.  ALL THIS SNOW COMBINED WITH CLEARING SKIES LED
TO COLDER TEMPERATURES WITH PULLMAN ON THE 6TH ONLY REACHING 31F FOR
A HIGH TEMPERATURE.  AFTER AN EARLY START TO WINTER...THE REMAINDER
OF NOVEMBER WAS MUCH MILDER WITH SEVERAL ROUNDS OF VALLEY RAIN AND
MOUNTAIN SNOW.  AN ESPECIALLY VERY MILD SYSTEM ARRIVED FROM THE 20TH
THROUGH THE 22ND AS A TROPICAL MOISTURE FETCH BECANE AIMED AT THE
AREA.  LEWISTON REACHED THE LOWER 60S FOR HIGHS ON THE 22ND AND
23RD.  WINDY CONDITIONS ALSO OCCURRED ON THE 23RD (THANKSGIVING)
WITH A PEAK WIND OF 42 MPH AT THE LEWISTON AIRPORT.

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


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