Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CDGM40 PGUM 130631
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
431 PM CHST SUN JUL 13 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 13 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 88 12:44 PM 91 1989 88 0 89
1990
2013
MINIMUM 77 4:51 AM 71 1950 77 0 79
AVERAGE 83 83 0 84
PRECIPITATION (IN)
TODAY 0.15 2.82 2011 0.36 -0.21 0.02
MONTH TO DATE 5.62 4.28 1.34 2.70
SINCE JUN 1 19.12 10.79 8.33 10.70
SINCE JAN 1 34.85 31.00 3.85 27.57
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 18 18 0 19
MONTH TO DATE 223 234 -11 229
SINCE JUN 1 732 786 -54 760
SINCE JAN 1 3296 3298 -2 3241
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SE (140)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 8.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HEAVY RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 5:00 AM
LOWEST 72 3:00 PM
AVERAGE 83
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 93 1964
MINIMUM TEMPERATURE (F) 77 72 1950
SUNRISE AND SUNSET
JULY 13 2025..........SUNRISE 6:01 AM CHST SUNSET 6:52 PM CHST
JULY 14 2025..........SUNRISE 6:01 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.
$$