Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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709
CDGM40 PGUM 141603
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
203 AM CHST TUE JUL 15 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 14 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 3:39 PM 93 1964 88 -1 88
MINIMUM 79 12:22 AM 72 1950 77 2 80
AVERAGE 83 83 0 84
PRECIPITATION (IN)
YESTERDAY 0.06 3.06 2011 0.37 -0.31 0.16
MONTH TO DATE 5.68 4.65 1.03 2.86
SINCE JUN 1 19.18 11.16 8.02 10.86
SINCE JAN 1 34.91 31.37 3.54 27.73
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 18 18 0 19
MONTH TO DATE 241 252 -11 248
SINCE JUN 1 750 804 -54 779
SINCE JAN 1 3314 3316 -2 3260
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SE (120)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 8.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 6:00 AM
LOWEST 72 3:00 PM
AVERAGE 80
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 93 1993
MINIMUM TEMPERATURE (F) 77 72 1967
1995
SUNRISE AND SUNSET
JULY 15 2025..........SUNRISE 6:01 AM CHST SUNSET 6:52 PM CHST
JULY 16 2025..........SUNRISE 6:02 AM CHST SUNSET 6:52 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$