Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CDGM40 PGUM 031610
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
210 AM CHST SUN OCT 04 2026
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 3 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 84 11:31 AM 92 1951 87 -3 87
1984
2018
MINIMUM 75 3:14 AM 71 1986 77 -2 77
AVERAGE 80 82 -2 82
PRECIPITATION (IN)
YESTERDAY 2.07 8.01 1986 0.49 1.58 0.12
MONTH TO DATE 4.59 1.45 3.14 0.20
SINCE SEP 1 21.27 16.62 4.65 12.54
SINCE JAN 1 113.30 73.25 40.05 67.82
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 15 17 -2 17
MONTH TO DATE 45 51 -6 53
SINCE SEP 1 556 553 3 542
SINCE JAN 1 4550 4681 -131 4671
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 21 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 61 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 20.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 3:00 AM
LOWEST 75 12:00 PM
AVERAGE 86
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 93 1984
MINIMUM TEMPERATURE (F) 77 71 1991
SUNRISE AND SUNSET
OCTOBER 4 2026.......SUNRISE 6:10 AM CHST SUNSET 6:09 PM CHST
OCTOBER 5 2026.......SUNRISE 6:10 AM CHST SUNSET 6:08 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$