Climatological Report (Monthly)
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000
CXUS56 KSEW 011032
CLMOLM


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
332 AM PDT MON MAY 1 2017

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

...THE OLYMPIA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              88   04/18/2016
 LOW               23   04/02/2008
                        04/08/1975
                        04/01/1975
HIGHEST            66   04/21        MM      MM       88  04/18
LOWEST             28   04/03        MM      MM       32  04/26
AVG. MAXIMUM     56.9              58.9    -2.0     66.3
AVG. MINIMUM     38.3              37.7     0.6     40.1
MEAN             47.6              48.3    -0.7     53.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      6               5.1     0.9        1
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.80   1991
 MINIMUM         0.37   1956
TOTALS           5.53              3.54    1.99     1.58
DAILY AVG.       0.18              0.12    0.06     0.05
DAYS >= .01        23              15.7     7.3       11
DAYS >= .10        15               9.5     5.5        5
DAYS >= .50         3               1.8     1.2        1
DAYS >= 1.00        0               0.4    -0.4        0
GREATEST
 24 HR. TOTAL    0.85   04/12 TO 04/12

DEGREE_DAYS
HEATING TOTAL     513               501      12
COOLING TOTAL       0                 0       0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
HIGHEST WIND SPEED/DIRECTION    36/180    DATE  04/07
HIGHEST GUST SPEED/DIRECTION    54/190    DATE  04/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY         11

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                      10
LIGHT RAIN               26     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      23     FOG W/VIS <= 1/4 MILE      4
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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