Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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893
CDGM40 PGUM 091623
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
223 AM CHST FRI OCT 10 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 9 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 88 3:01 PM 90 2018 87 1 85
2023
MINIMUM 77 6:18 AM 68 1968 77 0 74
1982
AVERAGE 83 82 1 80
PRECIPITATION (IN)
YESTERDAY 0.23 5.14 1979 0.45 -0.22 2.10
MONTH TO DATE 2.49 4.19 -1.70 6.25
SINCE SEP 1 14.83 19.36 -4.53 30.63
SINCE JAN 1 70.11 75.99 -5.88 77.85
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 18 17 1 15
MONTH TO DATE 146 153 -7 151
SINCE SEP 1 635 655 -20 665
SINCE JAN 1 4764 4783 -19 4763
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION NE (50)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 8.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 91 10:00 PM
LOWEST 66 3:00 PM
AVERAGE 79
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 90 1999
2007
MINIMUM TEMPERATURE (F) 77 68 1966
1982
SUNRISE AND SUNSET
OCTOBER 10 2025.......SUNRISE 6:11 AM CHST SUNSET 6:05 PM CHST
OCTOBER 11 2025.......SUNRISE 6:11 AM CHST SUNSET 6:04 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$