Climatological Report (Monthly)
Issued by NWS Seattle/Tacoma, WA

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158
CXUS56 KSEW 011032
CLMSEW


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
232 AM PST SUN NOV 1 2020

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

...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1986 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              87   10/01/1987
 LOW               29   10/30/1991
HIGHEST            74   10/02        MM      MM       69  10/11
LOWEST             36   10/25        MM      MM       34  10/30
                                                          10/28
AVG. MAXIMUM     60.5              60.1     0.4     58.4
AVG. MINIMUM     47.7              46.5     1.2     43.4
MEAN             54.1              53.3     0.8     50.9
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.1    -0.1        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.30   2016
 MINIMUM         0.28   1987
TOTALS           2.98              3.41   -0.43     2.61
DAILY AVG.       0.10              0.11   -0.01     0.08
DAYS >= .01        13              13.2    -0.2       12
DAYS >= .10         8               7.8     0.2        8
DAYS >= .50         1               2.0    -1.0        0
DAYS >= 1.00        0               0.3    -0.3        0

SNOWFALL (INCHES)
TOTALS            0.0                                0.0
SINCE 7/1         0.0                                0.0
SNOWDEPTH AVG.      0                                  0
GREATEST
 SNOW DEPTH         0                                  0  MM

DEGREE_DAYS
HEATING TOTAL     330               363     -33      430
 SINCE 7/1        427               548    -121      556
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        248               176      72      215
.................................................................


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       5
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      4
HAZE                      1

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

$$



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