Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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727
CDGM40 PGUM 011627
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
227 AM CHST TUE SEP 02 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 1 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 11:29 AM 91 1996 87 1 88
2016
MINIMUM 74 1:06 PM 67 1979 76 -2 77
AVERAGE 81 82 -1 83
PRECIPITATION (IN)
YESTERDAY 2.09 3.78 1962 0.53 1.56 0.07
MONTH TO DATE 2.09 0.53 1.56 0.07
SINCE SEP 1 2.09 0.53 1.56 0.07
SINCE JAN 1 57.37 57.16 0.21 47.29
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 16 17 -1 18
MONTH TO DATE 16 17 -1 18
SINCE SEP 1 16 17 -1 18
SINCE JAN 1 4146 4145 1 4116
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION N (350)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 1:00 PM
LOWEST 68 11:00 AM
AVERAGE 81
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 2016
MINIMUM TEMPERATURE (F) 76 67 1979
SUNRISE AND SUNSET
SEPTEMBER 2 2025.....SUNRISE 6:09 AM CHST SUNSET 6:31 PM CHST
SEPTEMBER 3 2025.....SUNRISE 6:10 AM CHST SUNSET 6:31 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$