577
CXUS56 KOTX 011318
CLMGEG

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
618 AM PDT THU OCT 01 2026

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...THE SPOKANE WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             99   09/01/2025
 LOW              22   09/23/2000
                       09/24/1926
HIGHEST           84   09/21         MM      MM       99  09/01
                                                          09/02
LOWEST            38   09/28         MM      MM       42  09/26
AVG. MAXIMUM    70.6               73.6    -3.0     80.9
AVG. MINIMUM    49.3               48.6     0.7     56.6
MEAN            59.9               61.1    -1.2     68.8
DAYS MAX >= 90     0                1.4    -1.4        4
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          1.03               0.58    0.45     0.43
DAILY AVG.      0.03               0.02    0.01     0.01
DAYS >= .01        8                4.7     3.3        5
DAYS >= .10        2                1.8     0.2        1
DAYS >= .50        1                0.2     0.8        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.52   09/13 TO 09/13               0.35

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                                 0.0

DEGREE DAYS
HEATING TOTAL    159                162      -3       49
 SINCE 7/1       179                216     -37       MM
COOLING TOTAL     13                 45     -32      170
 SINCE 1/1       605                514      91       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    33/220    DATE  09/25
HIGHEST GUST SPEED/DIRECTION    43/230    DATE  09/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.59
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      0
HAZE                      8

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

$$