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CXGM50 PGUM 042125
CLMGUM

CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
725 AM CHST THU NOV 05 2026

...................................

...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1945 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             93   10/23/2018
                       10/06/1989
                       10/04/1984
 LOW              67   10/16/1966
HIGHEST           88   10/16                          89  10/12
                       10/21                              10/19
                       10/22
LOWEST            73   10/02                          72  10/07
                       10/19
AVG. MAXIMUM    85.5               87.4    -1.9     86.3
AVG. MINIMUM    76.2               76.8    -0.6     76.1
MEAN            80.8
DAYS MAX >= 90     0                3.9    -3.9        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       26.68   2021
 MINIMUM        4.27   1976
TOTALS         20.80              12.73    8.07    15.36
DAILY AVG.      0.67               0.41    0.26     0.50
DAYS >= .01       22               25.4    -3.4       27
DAYS >= .10       18               18.0     0.0       21
DAYS >= .50       11                7.8     3.2        8
DAYS >= 1.00       9                3.5     5.5        3
DAYS >= 3.00       1                                   1
GREATEST
 24 HR. TOTAL   3.69   10/10 TO 10/10               5.59  10/15


DEGREE DAYS
COOLING TOTAL    498                530     -32      508
 SINCE 1/1      5003               5160    -157     5126

FREEZE DATES
................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.6
RESULTANT WIND SPEED/DIRECTION   1/160
HIGHEST WIND SPEED/DIRECTION    53/070    DATE  10/18
HIGHEST GUST SPEED/DIRECTION    83/100    DATE  10/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.46
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     85

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                13
RAIN                     16     LIGHT RAIN                29
FOG                       0     HAZE                       0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$