194
CXGM50 PGUM 041357
CLMGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
1157 PM CHST FRI SEP 04 2026
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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 94 08/30/1994
08/06/1994
LOW 70 08/15/1989
08/22/1886
08/13/1967
HIGHEST 91 08/20 90 08/18
LOWEST 73 08/19 74 08/19
08/22
08/30
AVG. MAXIMUM 87.0 87.2 -0.2 87.1
AVG. MINIMUM 77.0 76.5 0.5 76.6
MEAN 82.0
DAYS MAX >= 90 3 4.5 -1.5 1
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 26.42 2012
MINIMUM 0.01 2022
TOTALS 13.96 17.66 -3.70 13.06
DAILY AVG. 0.45 0.57 -0.12 0.42
DAYS >= .01 23 25.9 -2.9 27
DAYS >= .10 16 19.2 -3.2 20
DAYS >= .50 7 9.7 -2.7 12
DAYS >= 1.00 5 5.2 -0.2 4
DAYS >= 3.00 1 0
GREATEST
24 HR. TOTAL 3.06 08/06 TO 08/06 1.58 08/07
DEGREE DAYS
COOLING TOTAL 535 522 13 531
SINCE 1/1 3994 4128 -134 4129
FREEZE DATES
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WIND (MPH)
AVERAGE WIND SPEED 10.6
RESULTANT WIND SPEED/DIRECTION 8/260
HIGHEST WIND SPEED/DIRECTION 35/260 DATE 08/04
HIGHEST GUST SPEED/DIRECTION 48/250 DATE 08/04
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.43
NUMBER OF DAYS FAIR 11
NUMBER OF DAYS PC 20
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 84
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 HEAVY RAIN 12
RAIN 16 LIGHT RAIN 26
FOG 0 HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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