Climatological Report (Monthly)
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000
CXUS56 KSEW 011053
CLMOLM


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
352 AM PDT MON OCT 1 2018

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

...THE OLYMPIA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              98   09/02/1988
 LOW               25   09/27/1972
HIGHEST            86   09/06        MM      MM       91  09/02
LOWEST             35   09/18        MM      MM       36  09/15
AVG. MAXIMUM     70.9              71.8    -0.9     74.6
AVG. MINIMUM     45.1              46.0    -0.9     48.4
MEAN             58.0              58.9    -0.9     61.5
DAYS MAX >= 90      0               0.3    -0.3        2
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.3    -0.3        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.36   2013
 MINIMUM            T   2012
                        1993
TOTALS           2.06              1.71    0.35     1.24
DAILY AVG.       0.07              0.06    0.01     0.04
DAYS >= .01        12               7.8     4.2        9
DAYS >= .10         4               4.3    -0.3        5
DAYS >= .50         2               1.0     1.0        0
DAYS >= 1.00        0               0.2    -0.2        0
GREATEST
 24 HR. TOTAL    0.59   09/16 TO 09/16

DEGREE_DAYS
HEATING TOTAL     205               190      15
COOLING TOTAL       0                 7      -7
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.9
HIGHEST WIND SPEED/DIRECTION    20/260    DATE  09/22
HIGHEST GUST SPEED/DIRECTION    30/210    DATE  09/22

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  3
  0
  0
  0
  0
 13
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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