Climatological Report (Monthly)
Issued by NWS

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586
CXUS56 KPDT 011906
CLMYKM

CLIMATE REPORT
NATIONAL WEATHER SERVICE PENDLETON,OR
1206 PM PDT WED OCT 01 2025

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

...THE YAKIMA WA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1946 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            100   09/03/1988
                       09/01/1949
 LOW              16   09/10/2021
HIGHEST           99   09/03                          98  09/01
                                                          09/06
LOWEST            39   09/30                          34  09/30
AVG. MAXIMUM    83.7               79.4     4.3     83.6
AVG. MINIMUM    51.3               44.9     6.4     49.7
MEAN            67.5               62.2     5.3     66.7
DAYS MAX >= 90     5                3.2     1.8        9
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.7    -0.7        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.07   1986
 MINIMUM        0.00   1987
TOTALS          0.14               0.23   -0.09     0.06
DAILY AVG.      0.00               0.01   -0.01     0.00
DAYS >= .01        5                3.0     2.0        1
DAYS >= .10        0                0.8    -0.8        0
DAYS >= .50        0                0.0     0.0        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.07   09/21 TO 09/21               0.05  09/11 TO 09/11


DEGREE DAYS
HEATING TOTAL     46                131     -85       59
 SINCE 7/1        47                164    -117
COOLING TOTAL    128                 46      82      114
 SINCE 1/1       850                605     245
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.4
RESULTANT WIND SPEED/DIRECTION   3/270
HIGHEST WIND SPEED/DIRECTION    24/320    DATE  09/14
                                24/230          09/30
HIGHEST GUST SPEED/DIRECTION    35/230    DATE  09/30

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       1     FOG W/VIS <= 1/4 MILE      0
HAZE                     12

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

$$