283
CDGM40 PGUM 090647
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
447 PM CHST TUE SEP 09 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 9 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.
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)
TODAY
MAXIMUM 89 2:20 PM 90 1953 87 2 88
1994
2013
MINIMUM 78 4:35 AM 68 1971 76 2 75
1975
AVERAGE 84 82 2 82
PRECIPITATION (IN)
TODAY 0.05 6.29 1980 0.52 -0.47 0.93
MONTH TO DATE 4.85 4.81 0.04 2.10
SINCE SEP 1 4.85 4.81 0.04 2.10
SINCE JAN 1 60.13 61.44 -1.31 49.32
DEGREE DAYS
HEATING
TODAY 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
TODAY 19 17 2 17
MONTH TO DATE 150 153 -3 159
SINCE SEP 1 150 153 -3 159
SINCE JAN 1 4279 4281 -2 4257
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION E (70)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 8.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 5:00 AM
LOWEST 66 11:00 AM
AVERAGE 78
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 90 1957
2016
2021
MINIMUM TEMPERATURE (F) 76 68 1983
SUNRISE AND SUNSET
SEPTEMBER 9 2025.....SUNRISE 6:10 AM CHST SUNSET 6:26 PM CHST
SEPTEMBER 10 2025.....SUNRISE 6:10 AM CHST SUNSET 6:26 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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