619
CDGM40 PGUM 211616
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
216 AM CHST WED OCT 22 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 21 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 87 12:25 PM 90 2012 88 -1 79
2014
2016
MINIMUM 76 10:42 PM 68 1969 77 -1 74
1973
1978
AVERAGE 82 82 0 77
PRECIPITATION (IN)
YESTERDAY 0.89 6.37 1992 0.40 0.49 1.25
MONTH TO DATE 12.88 9.17 3.71 15.48
SINCE SEP 1 25.22 24.34 0.88 39.86
SINCE JAN 1 80.50 80.97 -0.47 87.08
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 17 17 0 12
MONTH TO DATE 339 357 -18 340
SINCE SEP 1 828 859 -31 854
SINCE JAN 1 4957 4987 -30 4952
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION E (110)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 8.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 6:00 PM
LOWEST 73 1:00 PM
AVERAGE 84
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 90 1956
1984
2015
MINIMUM TEMPERATURE (F) 77 67 1958
SUNRISE AND SUNSET
OCTOBER 22 2025.......SUNRISE 6:13 AM CHST SUNSET 5:58 PM CHST
OCTOBER 23 2025.......SUNRISE 6:13 AM CHST SUNSET 5:57 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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