126
CXUS56 KSEW 011729 CCA
CLMSEW

CLIMATE REPORT...CORRECTED MEAN TEMP
NATIONAL WEATHER SERVICE SEATTLE
1029 AM PDT WED OCT 01 2025

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

...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1894 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             93   09/03/1988
 LOW              40   09/30/2019
HIGHEST           92   09/16         MM      MM       89  09/05
LOWEST            49   09/19         MM      MM       46  09/30
AVG. MAXIMUM    75.1               71.3     3.8     72.7
AVG. MINIMUM    55.6               53.2     2.4     54.9
MEAN            65.4               62.3     3.1     63.8
DAYS MAX >= 90     1                0.1     0.9        0
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        5.01   2013
 MINIMUM        0.02   1991
TOTALS          0.97               1.74   -0.77     1.02
DAILY AVG.      0.03               0.06   -0.03     0.03
DAYS >= .01        5                8.8    -3.8        8
DAYS >= .10        3                4.6    -1.6        4
DAYS >= .50        1                1.0     0.0        1
DAYS >= 1.00       0                0.1    -0.1        0

DEGREE DAYS
HEATING TOTAL     32                106     -74       79
 SINCE 7/1        41                162    -121       MM
COOLING TOTAL     50                 24      26       53
 SINCE 1/1       374                210     164       MM
................................................................


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN                5     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                      0

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

$$