Climatological Report (Monthly)
Issued by NWS Spokane, WA

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000
CXUS46 KOTX 011347
CLMLWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
647 AM PDT WED NOV 01 2023

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

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             94   10/05/1943
 LOW              15   10/31/2002
HIGHEST           83   10/08         MM      MM       82  10/03
LOWEST            25   10/29         MM      MM       36  10/23
                                                          10/27
AVG. MAXIMUM    65.2               63.0     2.2     68.8
AVG. MINIMUM    45.8               42.0     3.8     46.3
MEAN            55.5               52.5     3.0     57.6
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     5                2.7     2.3        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.24   1940
 MINIMUM           T   1987
TOTALS          1.43               1.08    0.35     1.36
DAILY AVG.      0.05               0.03    0.02     0.04
DAYS >= .01        9                8.7     0.3        6
DAYS >= .10        4                3.7     0.3        4
DAYS >= .50        1                0.3     0.7        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.54   10/10 TO 10/11               0.67

SNOWFALL (INCHES)
RECORDS
 TOTAL           2.5   1971
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.0                0.0     0.0       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0       MM
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL      MM                                 0.0

DEGREE DAYS
HEATING TOTAL    296                392     -96      235
 SINCE 7/1       379                477     -98       MM
COOLING TOTAL      9                  4       5       11
 SINCE 1/1      1321                912     409       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              3.5
HIGHEST WIND SPEED/DIRECTION    18/300    DATE  10/09
HIGHEST GUST SPEED/DIRECTION    29/290    DATE  10/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.34
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       6
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      1
HAZE                      6

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

OCTOBER 2023 FINISHED SLIGHTLY WARMER THAN NORMAL OVER SOUTHEAST
WASHINGTON INTO THE SOUTH IDAHO PANHANDLE. PRECIPITATION WAS NEAR
NORMAL AROUND THE LEWISTON AREA WHILE BELOW NORMAL IN THE SOUTH
IDAHO PANHANDLE. THE FIRST THREE WEEKS OF THE MONTH STARTED OFF VERY
MILD WITH ABOVE NORMAL TEMPERATURES. LEWISTON MADE IT INTO THE 70S
OR WARMER 15 DAYS, WITH 80F TO 83F ACHIEVED FROM THE 7TH THROUGH THE
9TH. THEN CONDITIONS BECAME MUCH COOLER TO FINISH OUT THE MONTH WITH
EVEN LIGHT SNOW ON THE PALOUSE AND BLUE MOUNTAINS ON THE 26TH WITH
ACCUMULATIONS NEAR AN INCH. THEN THE SKIES CLEARED ALLOWING FOR THE
COLDEST TEMPERATURES OF THE MONTH. ON THE 28TH PULLMAN DROPPED TO
17F, WHICH TIED A RECORD FOR THE DATE.

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

$$


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