271
CXUS56 KSEW 011135
CLMSEA

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
335 AM PST SUN DEC 01 2024

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1945 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             74   11/03/2010
                       11/04/1949
 LOW               6   11/15/1955
HIGHEST           61   11/08         MM      MM       63  11/04
LOWEST            32   11/28         MM      MM       28  11/27
                                                          11/28
AVG. MAXIMUM    50.6               52.1    -1.5     51.0
AVG. MINIMUM    41.4               40.9     0.5     38.7
MEAN            46.0               46.5    -0.5     44.8
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.1    -0.1        0
DAYS MIN <= 32     1                3.0    -2.0        6
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       15.63   2006
 MINIMUM        0.74   1996
TOTALS          4.86               6.31   -1.45     5.78
DAILY AVG.      0.16               0.21   -0.05     0.19
DAYS >= .01       21               18.4     2.6       15
DAYS >= .10       14               12.9     1.1       14
DAYS >= .50        2                3.9    -1.9        3
DAYS >= 1.00       0                1.4    -1.4        2
GREATEST
 24 HR. TOTAL   1.02   11/10 TO 11/11

SNOWFALL (INCHES)
RECORDS
 TOTAL          17.5   1985
TOTALS           0.0                0.2    -0.2      0.0
SINCE 7/1        0.0                0.2    -0.2       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                                   0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL      MM                                 0.0

DEGREE DAYS
HEATING TOTAL    561                555       6      598
 SINCE 7/1      1041               1061     -20       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1       315                263      52       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
HIGHEST WIND SPEED/DIRECTION    40/120    DATE  11/19
HIGHEST GUST SPEED/DIRECTION    58/120    DATE  11/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.85
NUMBER OF DAYS FAIR            0
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY         23

AVERAGE RH (PERCENT)     80

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN               22     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      21     FOG W/VIS <= 1/4 MILE      3
HAZE                      2

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

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