Climatological Report (Monthly)
Issued by NWS Spokane, WA

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435
CXUS46 KOTX 011250
CLMLWS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
550 AM PDT FRI NOV 01 2024

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

...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2024

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           81   10/08         MM      MM       83  10/08
LOWEST            36   10/18         MM      MM       25  10/29
                       10/30
AVG. MAXIMUM    67.3               63.0     4.3     65.2
AVG. MINIMUM    44.3               42.0     2.3     45.8
MEAN            55.8               52.5     3.3     55.5
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                2.7    -2.7        5
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.24   1940
 MINIMUM           T   1987
TOTALS          0.89               1.08   -0.19     1.43
DAILY AVG.      0.03               0.03   -0.00     0.05
DAYS >= .01        6                8.7    -2.7        9
DAYS >= .10        4                3.7     0.3        4
DAYS >= .50        0                0.3    -0.3        1
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.37   10/21 TO 10/21               0.54

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        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL      MM                                 0.0

DEGREE DAYS
HEATING TOTAL    281                392    -111      296
 SINCE 7/1       308                477    -169       MM
COOLING TOTAL      0                  4      -4        9
 SINCE 1/1      1228                912     316       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.3
HIGHEST WIND SPEED/DIRECTION    35/300    DATE  10/04
HIGHEST GUST SPEED/DIRECTION    51/280    DATE  10/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.25
NUMBER OF DAYS FAIR           21
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     57

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

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

$$

OCTOBER 2024 BROUGHT WARMER AND DRIER THAN NORMAL CONDITIONS TO
SOUTHEAST WASHINGTON AND THE SOUTH IDAHO PANHANDLE. OVERALL IT WAS A
FAIRLY QUIET MONTH EXCEPT FOR A BLOWING DUST EVENT ON THE 4TH. THE
DUST RESULTED IN SEVERAL TRAFFIC ACCIDENTS ON HIGHWAY 95 SOUTHBOUND
NEAR GENESSEE. PEAK WIND GUSTS INCLUDE 53 MPH FERDINAND AND ALPOWA
SUMMIT, 51 MPH AT THE LEWISTON AIRPORT, 46 MPH CRAIGMONT, AND 44 MPH
AT THE PULLMAN AIRPORT.

OCTOBER IS THE BIGGEST MONTH OF WEATHER CHANGES FOR THE INLAND NW
HISTORICALLY AND THIS ONE WAS NO DIFFERENT. LEWISTON REACHED THE 70S
ON 13 OF THE FIRST 14 DAYS OF THE MONTH, WITH THE 8TH EVEN REACHING
THE 80 DEGREE MARK.  BUT BY THE LAST WEEK OF OCTOBER TEMPERATURES
WERE MUCH COOLER WITH HIGHS MOST DAYS IN THE 50S.  PERIODS OF LIGHT
PRECIPITATION AND BREEZY WINDS ACCOMPANIED SEVERAL FRONTAL PASSAGES
DURING THE MONTH.

THE HIGH TEMPERATURE OF 78F ON THE 20TH SET A NEW DAILY RECORD FOR
THE DATE AT THE LEWISTON AIRPORT.