164
CDGM40 PGUM 180717
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
517 PM CHST MON MAY 18 2026
...............................
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR MAY 18 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 88 1:20 PM 91 2013 89 -1 89
MINIMUM 80 2:55 AM 67 1967 78 2 76
AVERAGE 84 83 1 83
PRECIPITATION (IN)
TODAY 0.00 4.30 1977 0.14 -0.14 0.23
MONTH TO DATE 4.27 2.38 1.89 0.87
SINCE MAR 1 33.34 8.65 24.69 6.36
SINCE JAN 1 47.11 18.14 28.97 14.62
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 19 18 1 18
MONTH TO DATE 313 324 -11 334
SINCE MAR 1 1254 1353 -99 1362
SINCE JAN 1 2166 2272 -106 2322
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 15 RESULTANT WIND DIRECTION E (80)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 15.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 1:00 AM
LOWEST 65 2:00 PM
AVERAGE 72
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 92 2001
MINIMUM TEMPERATURE (F) 78 66 1975
SUNRISE AND SUNSET
MAY 18 2026...........SUNRISE 5:54 AM CHST SUNSET 6:40 PM CHST
MAY 19 2026...........SUNRISE 5:54 AM CHST SUNSET 6:41 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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