593
CXUS56 KSEW 011043
CLMOLM

CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
343 AM PDT MON JUN 01 2026

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

...THE OLYMPIA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1941 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             96   05/28/1983
 LOW              25   05/01/1954
HIGHEST           85   05/03         MM      MM       81  05/30
LOWEST            32   05/17         MM      MM       31  05/05
AVG. MAXIMUM    69.0               66.1     2.9     66.9
AVG. MINIMUM    43.3               43.0     0.3     40.6
MEAN            56.1               54.5     1.6     53.7
DAYS MAX >= 90     0                0.1    -0.1        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     1                1.1    -0.1        1
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.83   1948
 MINIMUM        0.15   2016
TOTALS          1.56               2.26   -0.70     0.96
DAILY AVG.      0.05               0.07   -0.02     0.03
DAYS >= .01        6               11.4    -5.4       10
DAYS >= .10        3                6.5    -3.5        4
DAYS >= .50        1                1.2    -0.2        0
DAYS >= 1.00       0                0.1    -0.1        0
GREATEST
 24 HR. TOTAL   0.77   05/15 TO 05/16

DEGREE DAYS
HEATING TOTAL    268                326     -58      341
 SINCE 7/1      4569               5186    -617       MM
COOLING TOTAL      0                  2      -2        0
 SINCE 1/1         0                  2      -2       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
HIGHEST WIND SPEED/DIRECTION    22/230    DATE  05/13
HIGHEST GUST SPEED/DIRECTION    35/250    DATE  05/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.38
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      5
HAZE                      1

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

$$