799
CXGM50 PGUM 010210
CLMGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
1210 PM CHST MON SEP 01 2025
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...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1945 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 94 08/30/1994
08/06/1994
LOW 63 08/24/2020
HIGHEST 84 89 08/24
08/27
08/28
LOWEST 76 74 08/17
AVG. MAXIMUM 84.0 87.2 -3.2 87.6
AVG. MINIMUM 76.0 76.5 -0.5 76.7
MEAN 80.0
DAYS MAX >= 90 0 4.5 -4.5 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 26.42 2012
MINIMUM 0.01 2022
TOTALS 1.01 17.66 -16.65 14.84
DAILY AVG. 0.42 0.57 -0.15 0.48
DAYS >= .01 1 25.9 -24.9 25
DAYS >= .10 1 19.2 -18.2 19
DAYS >= .50 1 9.7 -8.7 11
DAYS >= 1.00 1 5.2 -4.2 4
DAYS >= %-5.2F 0
GREATEST
24 HR. TOTAL 1.01 08/01 TO 08/01 3.65
DEGREE DAYS
COOLING TOTAL 15 522 -507 540
SINCE 1/1 4130 4128 2 MM
FREEZE DATES
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WIND (MPH)
AVERAGE WIND SPEED 6.6
RESULTANT WIND SPEED/DIRECTION 5/090
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.30
NUMBER OF DAYS FAIR 22
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 82
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 HEAVY RAIN 15
RAIN 15 LIGHT RAIN 28
FOG 1 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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