Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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739
CDGM40 PGUM 170640
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
440 PM CHST TUE JUN 17 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JUNE 17 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 86 2:00 PM 92 1994 89 -3 88
2016
2021
MINIMUM 77 2:55 AM 72 1989 78 -1 80
AVERAGE 82 84 -2 84
PRECIPITATION (IN)
TODAY 0.06 3.69 1985 0.20 -0.14 0.03
MONTH TO DATE 4.85 3.24 1.61 5.07
SINCE JUN 1 4.85 3.24 1.61 5.07
SINCE JAN 1 20.58 23.45 -2.87 21.94
DEGREE DAYS
HEATING
TODAY 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
TODAY 17 18 -1 19
MONTH TO DATE 297 306 -9 293
SINCE JUN 1 297 306 -9 293
SINCE JAN 1 2861 2818 43 2774
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION E (80)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 8.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 AM
LOWEST 70 2:00 PM
AVERAGE 80
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 93 1966
1993
MINIMUM TEMPERATURE (F) 78 72 1967
SUNRISE AND SUNSET
JUNE 17 2025..........SUNRISE 5:54 AM CHST SUNSET 6:49 PM CHST
JUNE 18 2025..........SUNRISE 5:54 AM CHST SUNSET 6:50 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$