Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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015
CDGM40 PGUM 151605
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
205 AM CHST WED JUL 16 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 15 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 1:57 PM 93 1993 88 0 87
MINIMUM 80 9:27 PM 72 1967 77 3 80
1995
AVERAGE 84 82 2 84
PRECIPITATION (IN)
YESTERDAY T 3.17 2010 0.38 -0.38 0.10
MONTH TO DATE 5.68 5.03 0.65 2.96
SINCE JUN 1 19.18 11.54 7.64 10.96
SINCE JAN 1 34.91 31.75 3.16 27.83
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 19 18 1 19
MONTH TO DATE 260 270 -10 267
SINCE JUN 1 769 822 -53 798
SINCE JAN 1 3333 3334 -1 3279
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION E (110)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 8.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 1:00 AM
LOWEST 70 12:00 PM
AVERAGE 78
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 93 1969
1984
MINIMUM TEMPERATURE (F) 77 72 1958
1967
1992
SUNRISE AND SUNSET
JULY 16 2025..........SUNRISE 6:02 AM CHST SUNSET 6:52 PM CHST
JULY 17 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.
$$