010
CXGM50 PGUM 040746
CLMGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
546 PM CHST THU JUN 04 2026
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...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 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
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TEMPERATURE (F)
RECORD
HIGH 94 05/30/1971
LOW 70 05/23/1951
05/03/1993
HIGHEST 88 05/01 91 05/24
05/05
LOWEST 75 05/05 75 05/11
AVG. MAXIMUM 86.4 88.6 -2.2 88.7
AVG. MINIMUM 77.8 77.8 0.0 77.9
MEAN 82.1
DAYS MAX >= 90 0 8.7 -8.7 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 31.15 2023 2023 (02W TYPHOON MAWAR 24.71")
MINIMUM 0.40 1987
TOTALS 8.89 4.45 4.44 1.98
DAILY AVG. 0.29 0.14 0.15 0.06
DAYS >= .01 24 19.7 4.3 21
DAYS >= .10 16 9.4 6.6 9
DAYS >= .50 4 2.3 1.7 0
DAYS >= 1.00 2 0.7 1.3 0
DAYS >= 3.00 0
GREATEST
24 HR. TOTAL 2.72 05/27 TO 05/27 0.24 05/27
DEGREE DAYS
COOLING TOTAL 539 564 -25 576
SINCE 1/1 2392 2512 -120 2564
FREEZE DATES
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WIND (MPH)
AVERAGE WIND SPEED 12.4
RESULTANT WIND SPEED/DIRECTION 12/090
HIGHEST WIND SPEED/DIRECTION 24/090 DATE 05/06
HIGHEST GUST SPEED/DIRECTION 38/070 DATE 05/03
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.45
NUMBER OF DAYS FAIR 7
NUMBER OF DAYS PC 23
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 80
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 HEAVY RAIN 9
RAIN 10 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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