Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CDGM40 PGUM 311605
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
205 AM CHST FRI AUG 01 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 31 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 86 3:48 PM 91 1994 87 -1 87
2013
2020
MINIMUM 77 5:44 AM 73 1956 77 0 78
1967
1969
AVERAGE 82 82 0 83
PRECIPITATION (IN)
YESTERDAY 0.02 2.90 1962 0.47 -0.45 0.33
MONTH TO DATE 12.99 12.25 0.74 7.51
SINCE JUN 1 26.49 18.76 7.73 15.51
SINCE JAN 1 42.22 38.97 3.25 32.38
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 17 17 0 18
MONTH TO DATE 524 542 -18 546
SINCE JUN 1 1033 1094 -61 1077
SINCE JAN 1 3597 3606 -9 3558
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NE (50)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 3.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 7:00 AM
LOWEST 72 4:00 PM
AVERAGE 84
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 92 1983
MINIMUM TEMPERATURE (F) 77 71 1969
SUNRISE AND SUNSET
AUGUST 1 2025........SUNRISE 6:06 AM CHST SUNSET 6:49 PM CHST
AUGUST 2 2025........SUNRISE 6:06 AM CHST SUNSET 6:48 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$