Climatological Report (Monthly)
Issued by NWS Spokane, WA

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272
CXUS56 KOTX 011322
CLMEAT

CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
622 AM PDT WED OCT 01 2025

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

...THE WENATCHEE WA PANGBORN FIELD CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1959 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            101   09/01/1987
 LOW              31   09/29/1985
HIGHEST           99   09/02         MM      MM       95  09/01
                       09/03
LOWEST            49   09/28          0      49       43  09/30
AVG. MAXIMUM    82.1               76.7     5.4     81.8
AVG. MINIMUM    59.9               52.5     7.4     58.2
MEAN            71.0               64.6     6.4     70.0
DAYS MAX >= 90     5                2.5     2.5        8
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.31   1986
 MINIMUM        0.00   1999
TOTALS          0.06               0.23   -0.17     0.03
DAILY AVG.      0.00               0.01   -0.01     0.00
DAYS >= .01        4                2.8     1.2        2
DAYS >= .10        0                0.7    -0.7        0
DAYS >= .50        0                0.0     0.0        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.03   09/21 TO 09/21               0.02


DEGREE DAYS
HEATING TOTAL     18                 91     -73       29
 SINCE 7/1        18                104     -86       MM
COOLING TOTAL    208                 79     129      178
 SINCE 1/1      1254                805     449       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.3
HIGHEST WIND SPEED/DIRECTION    32/280    DATE  09/25
HIGHEST GUST SPEED/DIRECTION    40/290    DATE  09/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.24
NUMBER OF DAYS FAIR           21
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     46

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                7     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                     26

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

$$

SEPTEMBER 2025 FINISHED WITH MUCH ABOVE NORMAL TEMPERATURES FOR
NORTH CENTRAL WASHINGTON. PRECIPITATION AMOUNTS VARIED ACROSS THE
REGION. THE FIRST FIVE DAYS REACHED THE 90S IN WENATCHEE. LIGHTNING
ALSO STARTED FIRES IN THE CASCADES ON THE 1ST INCLUDING THE LOWER
SUGARLOAF FIRE WHICH BY MONTHS END WAS OVER 30,000 ACRES. FROM THE
7TH THROUGH THE 10TH THUNDERSTORMS OCCURRED EACH DAY ALONG THE EAST
SLOPES OF THE CASCADES INTO OKANOGAN VALLEY AND HIGHLANDS.  ON THE
14TH COOL AND SHOWERY WEATHER ARRIVED, WITH A FUNNEL CLOUD SPOTTED
WEST OF COULEE CITY, APPROXIMATELY 10 MILES NORTHWEST OF SOAP LAKE.
THE COOLER WEATHER WAS SHORT LIVED AS HIGH TEMPERATURES RETURNED
INTO THE 80S FROM THE 16TH THROUGH THE 20TH. HIGH PRESSURE ON THE
23RD AND 24TH ALLOWED AN INCREASE IN VALLEY SMOKE FOR LAKE
WENATCHEE, CHELAN, ENTIAT, AND WENATCHEE.  ON THE 24TH AIR QUALITY
REACHED HAZARDOUS LEVELS IN WENATCHEE. ON THE 25TH A STRONG DRY COLD
FRONT PASSED THROUGH THE REGION BRINGING WINDY CONDITIONS AND VERY
LOW RELATIVE HUMIDITY. VALUES WERE NOTEWORTHY FOR ANY TIME OF THE
YEAR, WITH OMAK DROPPING TO 6 PERCENT. THE WINDS PUSHED SMOKE FROM
FIRES IN THE CASCADES INTO THE COLUMBIA BASIN WITH UNHEALTHY AIR
QUALITY IN MOSES LAKE.  PEAK WIND GUSTS INCLUDE 50 MPH IN MATTAWA,
45 MPH OROVILLE, AND 40 MPH AT THE WENATCHEE AIRPORT.

A COUPLE RECORDS WERE BROKEN DURING THE MONTH AT THE WENATCHEE
AIRPORT. ON THE 3RD A RECORD HIGH TEMPERATURE OF 99F WAS SET.  ON
THE 21ST JUST .03 INCHES OF RAIN WAS ENOUGH TO SET A DAILY RECORD AS
WELL.