681
CDGM40 PGUM 180633
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
433 PM CHST THU JUN 18 2026
...............................
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JUNE 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 87 2:48 PM 92 1993 89 -2 89
MINIMUM 78 6:56 AM 68 1973 78 0 78
AVERAGE 83 83 0 84
PRECIPITATION (IN)
TODAY 0.76 0.99 1974 0.20 0.56 T
MONTH TO DATE 1.50 3.44 -1.94 4.86
SINCE JUN 1 1.50 3.44 -1.94 4.86
SINCE JAN 1 53.23 23.65 29.58 20.59
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 18 18 0 19
MONTH TO DATE 321 324 -3 313
SINCE JUN 1 321 324 -3 313
SINCE JAN 1 2713 2836 -123 2877
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NE (60)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 6.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 1:00 AM
LOWEST 70 2:00 PM
AVERAGE 82
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 92 2013
2016
MINIMUM TEMPERATURE (F) 78 67 1985
SUNRISE AND SUNSET
JUNE 18 2026..........SUNRISE 5:54 AM CHST SUNSET 6:50 PM CHST
JUNE 19 2026..........SUNRISE 5:54 AM CHST SUNSET 6:50 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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