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

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CXUS56 KSEW 011030
CLMSEW


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
230 AM PST THU JAN 1 2015

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

...THE SEATTLE WA WFO CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1986 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              65   12/10/2014
 LOW               10   12/21/1990
HIGHEST            65R  12/10        MM      MM       55  12/23
LOWEST             26   12/01        MM      MM       18  12/08
AVG. MAXIMUM     50.5              45.9     4.6     43.1
AVG. MINIMUM     39.6              36.3     3.3     33.8
MEAN             45.1              41.1     4.0     38.5
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.6    -0.6        1
DAYS MIN <= 32      4               6.4    -2.4       12
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.85   1996
 MINIMUM         1.49   2011
TOTALS           5.38              5.43   -0.05     1.67
DAILY AVG.       0.17              0.18   -0.01     0.05
DAYS >= .01        18              18.8    -0.8       14
DAYS >= .10        13              11.8     1.2        6
DAYS >= .50         3               3.2    -0.2        0
DAYS >= 1.00        1               1.1    -0.1        0

SNOWFALL (INCHES)
TOTALS            0.0                                0.9
SINCE 7/1           T                                0.9
SNOWDEPTH AVG.      0                                  0
GREATEST
 SNOW DEPTH         0                                  0  MM

DEGREE_DAYS
HEATING TOTAL     608               741    -133      817
 SINCE 7/1       1420              1853    -433     1913
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        366               176     190      314
.................................................................

WIND (MPH)
HIGHEST GUST SPEED/DIRECTION    MM        DATE   MM


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       6
LIGHT RAIN               19     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       2     FOG W/VIS <= 1/4 MILE      1
HAZE                      0

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

$$


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