Climatological Report (Monthly)
Issued by NWS
Issued by NWS
212
CXUS56 KSEW 011032
CLMOLM
CLIMATE REPORT
NATIONAL WEATHER SERVICE SEATTLE
332 AM PDT SUN JUN 01 2025
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...THE OLYMPIA WA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1941 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 96 05/28/1983
LOW 25 05/01/1954
HIGHEST 81 05/30 MM MM 88 05/10
05/11
LOWEST 31 05/05 MM MM 31 05/01
AVG. MAXIMUM 66.9 66.1 0.8 65.7
AVG. MINIMUM 40.6 43.0 -2.4 41.7
MEAN 53.7 54.5 -0.8 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 2
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 5.83 1948
MINIMUM 0.15 2016
TOTALS 0.96 2.26 -1.30 1.38
DAILY AVG. 0.03 0.07 -0.04 0.04
DAYS >= .01 10 11.4 -1.4 9
DAYS >= .10 4 6.5 -2.5 4
DAYS >= .50 0 1.2 -1.2 1
DAYS >= 1.00 0 0.1 -0.1 0
GREATEST
24 HR. TOTAL 0.32 05/19 TO 05/19
DEGREE DAYS
HEATING TOTAL 341 326 15 345
SINCE 7/1 4856 5186 -330 MM
COOLING TOTAL 0 2 -2 3
SINCE 1/1 0 2 -2 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.1
HIGHEST WIND SPEED/DIRECTION 22/190 DATE 05/19
HIGHEST GUST SPEED/DIRECTION 122/250 DATE 05/28
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.39
NUMBER OF DAYS FAIR 15
NUMBER OF DAYS PC 10
NUMBER OF DAYS CLOUDY 4
AVERAGE RH (PERCENT) 68
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 15 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 9 FOG W/VIS <= 1/4 MILE 1
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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