Climatological Report (Monthly)
Issued by NWS

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CXUS56 KSEW 011152
CLMSEA


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
452 AM PDT SAT AUG 1 2015

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

...THE SEATTLE-TACOMA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JULY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             103   07/29/2009
 LOW               43   07/02/1954
                        07/24/1953
                        07/04/1949
HIGHEST            95   07/19        MM      MM       94  07/01
LOWEST             54   07/27        MM      MM       53  07/18
AVG. MAXIMUM     82.6              75.8     6.8     80.4
AVG. MINIMUM     59.9              55.6     4.3     58.0
MEAN             71.2              65.7     5.5     69.2
DAYS MAX >= 90     10               1.4     8.6        2
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         2.39   1983
 MINIMUM            T   2013
                        1960
TOTALS           0.09              0.70   -0.61     0.77
DAILY AVG.       0.00              0.02   -0.02     0.02
DAYS >= .01         2               5.0    -3.0        2
DAYS >= .10         0               2.3    -2.3        1
DAYS >= .50         0               0.2    -0.2        1
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.08   07/26 TO 07/26
                        07/25 TO 07/26
                        07/26 TO 07/26

DEGREE_DAYS
HEATING TOTAL       2                49     -47       14
 SINCE 7/1          2                49     -47       14
COOLING TOTAL     203                71     132      152
 SINCE 1/1        328                98     230      178
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.7
HIGHEST WIND SPEED/DIRECTION    18/340    DATE  07/17
HIGHEST GUST SPEED/DIRECTION    28/240    DATE  07/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     56

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