370
CDGM40 PGUM 191620
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
220 AM CHST MON OCT 20 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 19 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1945 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 89 2:15 PM 90 2000 87 2 84
2016
MINIMUM 79 4:40 AM 65 1994 77 2 74
AVERAGE 84 82 2 79
PRECIPITATION (IN)
YESTERDAY 0.02 4.84 1977 0.40 -0.38 0.58
MONTH TO DATE 11.10 8.37 2.73 10.18
SINCE SEP 1 23.44 23.54 -0.10 34.56
SINCE JAN 1 78.72 80.17 -1.45 81.78
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 19 17 2 14
MONTH TO DATE 309 323 -14 313
SINCE SEP 1 798 825 -27 827
SINCE JAN 1 4927 4953 -26 4925
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WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NE (60)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 11.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 5:00 AM
LOWEST 88 12:00 AM
AVERAGE 89
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THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 91 2014
MINIMUM TEMPERATURE (F) 77 66 1965
SUNRISE AND SUNSET
OCTOBER 20 2025.......SUNRISE 6:12 AM CHST SUNSET 5:59 PM CHST
OCTOBER 21 2025.......SUNRISE 6:12 AM CHST SUNSET 5:58 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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