Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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108
CDGM40 PGUM 031630
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
230 AM CHST SAT OCT 04 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 3 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 2:09 PM 92 1951 87 0 86
2018
MINIMUM 77 5:49 AM 68 1981 77 0 75
AVERAGE 82 82 0 81
PRECIPITATION (IN)
YESTERDAY 0.12 11.35 1986 0.49 -0.37 1.34
MONTH TO DATE 0.20 1.45 -1.25 1.38
SINCE SEP 1 12.54 16.62 -4.08 25.76
SINCE JAN 1 67.82 73.25 -5.43 72.98
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 16
MONTH TO DATE 53 51 2 56
SINCE SEP 1 542 553 -11 570
SINCE JAN 1 4671 4681 -10 4668
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 AM
LOWEST 70 2:00 PM
AVERAGE 80
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 92 2016
MINIMUM TEMPERATURE (F) 77 68 1981
SUNRISE AND SUNSET
OCTOBER 4 2025.......SUNRISE 6:10 AM CHST SUNSET 6:09 PM CHST
OCTOBER 5 2025.......SUNRISE 6:10 AM CHST SUNSET 6:08 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$