Climatological Report (Monthly)
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000
CXUS56 KSEW 011049
CLMOLM


CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
349 AM PDT TUE MAY 1 2018

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

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

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2018

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            83   04/26        MM      MM       66  04/21
LOWEST             31   04/23        MM      MM       28  04/03
AVG. MAXIMUM     58.3              58.9    -0.6     56.9
AVG. MINIMUM     39.1              37.7     1.4     38.3
MEAN             48.7              48.3     0.4     47.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      3               5.1    -2.1        6
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.80   1991
 MINIMUM         0.37   1956
TOTALS           7.24              3.54    3.70     5.53
DAILY AVG.       0.24              0.12    0.12     0.18
DAYS >= .01        20              15.7     4.3       23
DAYS >= .10        12               9.5     2.5       15
DAYS >= .50         5               1.8     3.2        3
DAYS >= 1.00        1               0.4     0.6        0
GREATEST
 24 HR. TOTAL    2.03   04/14 TO 04/14

DEGREE_DAYS
HEATING TOTAL     481               501     -20
COOLING TOTAL       0                 0       0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.9
HIGHEST WIND SPEED/DIRECTION    24/180    DATE  04/07
HIGHEST GUST SPEED/DIRECTION    32/180    DATE  04/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY         16

AVERAGE RH (PERCENT)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  2
  0
  0
  0
  0
  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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