Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CDGM40 PGUM 121615
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
215 AM CHST SUN JUL 13 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 12 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 83 7:57 AM 92 1979 88 -5 88
1993
MINIMUM 76 10:20 AM 74 2000 77 -1 77
2008
2014
AVERAGE 80 83 -3 83
PRECIPITATION (IN)
YESTERDAY 1.07 2.27 1981 0.36 0.71 0.09
MONTH TO DATE 5.47 3.92 1.55 2.68
SINCE JUN 1 18.97 10.43 8.54 10.68
SINCE JAN 1 34.70 30.64 4.06 27.55
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 15 18 -3 18
MONTH TO DATE 205 216 -11 210
SINCE JUN 1 714 768 -54 741
SINCE JAN 1 3278 3280 -2 3222
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SE (120)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SE (150)
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 10:00 AM
LOWEST 82 10:00 PM
AVERAGE 90
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 91 1989
1990
2013
MINIMUM TEMPERATURE (F) 77 71 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.
$$