574
CXUS56 KOTX 011318
CLMDEW

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

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

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

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 9999 TO 9999

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            100   09/02/2025
 LOW              18   09/23/2000
HIGHEST           81   09/01         MM      MM      100  09/02
                       09/21
LOWEST            27   09/28         MM      MM       35  09/26
AVG. MAXIMUM    70.7               74.0    -3.3     81.2
AVG. MINIMUM    42.6               39.9     2.7     47.5
MEAN            56.6               57.0    -0.4     64.3
DAYS MAX >= 90     0                1.5    -1.5        4
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     2                4.3    -2.3        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.39   2013
 MINIMUM           T   1999
TOTALS          2.05               0.82    1.23     0.38
DAILY AVG.      0.07               0.03    0.04     0.01
DAYS >= .01        7                5.6     1.4        3
DAYS >= .10        7                2.3     4.7        3
DAYS >= .50        1                0.3     0.7        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.80   09/13 TO 09/13               0.15


DEGREE DAYS
HEATING TOTAL    243                256     -13       94
 SINCE 7/1       305                382     -77       MM
COOLING TOTAL      0                 14     -14       81
 SINCE 1/1       266                216      50       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.1
HIGHEST WIND SPEED/DIRECTION    28/220    DATE  09/25
HIGHEST GUST SPEED/DIRECTION    37/220    DATE  09/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.28
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

$$