404
CXUS56 KOTX 010849
CLMGEG

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
137 AM PDT TUE OCT 01 2024

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

...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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             98   09/18/1938
                       09/03/1988
 LOW              22   09/23/2000
                       09/24/1926
HIGHEST           97   09/01         MM      MM       88  09/16
LOWEST            35   09/30         MM      MM       39  09/29
AVG. MAXIMUM    79.5               73.6     5.9     72.7
AVG. MINIMUM    53.9               48.6     5.3     51.1
MEAN            66.7               61.1     5.6     61.9
DAYS MAX >= 90     5                1.4     3.6        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.4    -0.4        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.58   1927
 MINIMUM           T   2012
TOTALS          0.04               0.58   -0.54     0.43
DAILY AVG.      0.00               0.02   -0.02     0.01
DAYS >= .01        2                4.7    -2.7        9
DAYS >= .10        0                1.8    -1.8        1
DAYS >= .50        0                0.2    -0.2        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.03   09/14 TO 09/14               0.21

SNOWFALL (INCHES)
RECORDS
 TOTAL           3.3   2019
TOTALS           0.0                0.1    -0.1      0.0
SINCE 7/1        0.0                0.1    -0.1       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.1    -0.1        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL     69                162     -93      134
 SINCE 7/1        89                216    -127       MM
COOLING TOTAL    128                 45      83       46
 SINCE 1/1       871                514     357       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.7
HIGHEST WIND SPEED/DIRECTION    43/250    DATE  09/25
HIGHEST GUST SPEED/DIRECTION    61/250    DATE  09/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.44
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     50

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

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

$$

SEPTEMBER 2024 BROUGHT WARMER AND DRIER THAN NORMAL CONDITIONS TO
NORTHEAST WASHINGTON INTO THE NORTH IDAHO PANHANDLE. THE MONTH
STARTED OFF VERY WARM WITH HIGH TEMPERATURES IN THE 80S AND 90S
THROUGH THE 9TH. THE 10TH THROUGH THE 21ST BROUGHT MORE SEASONAL
WEATHER WITH LIGHT PRECIPITATION AT TIMES.  THE 25TH BROUGHT A
STRONG COLD FRONT PASSAGE DELIVERED HIGH WINDS, SIGNIFICANT AMOUNTS
OF BLOWING DUST, AND SEVERE THUNDERSTORMS. THE STORMS PRODUCED WIND
GUSTS AS HIGH AS 60-70 MPH INCLUDING A 65 MPH WIND GUSTS ON FIVE
MILE IN NORTH SPOKANE. THE WINDS KNOCKED DOWNED SEVERAL TREES FROM
NORTH SPOKANE THROUGH ELK, NEWPORT, SANDPOINT, AND BONNERS FERRY. IN
ADDITION, THE WINDS PICKED UP SIGNIFICANT AMOUNTS OF BLOWING DUST ON
THE WEST PLAINS WITH VISIBILITY BRIEFLY NEAR ZERO IN AIRWAY HEIGHTS.
THE STORMS KNOCKED OUT POWER TO AROUND 40,000 CUSTOMERS ACROSS
NORTHEAST WASHINGTON INTO THE IDAHO PANHANDLE. ANOTHER COLD FRONT ON
THE 29TH PRODUCED WEST WINDS GUSTING BETWEEN 40 AND 45 MPH WHICH
CREATED ANOTHER DUST STORM WITH VISIBILITY REDUCTIONS OF A HALF MILE
OR LESS TO RITZVILLE, LIND, OAKESDALE, STEPTOE, AND THE COMMUNITY OF
PALOUSE.

SPOKANE AIRPORT TIED A RECORD HIGH TEMPERATURE OF 94 DEGREES ON THE
6TH.