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000
CXGM50 PGUM 040704
CLMGUM

CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
504 PM CHST WED OCT 04 2023

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

...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1945 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             94   09/06/2016
 LOW              70   09/13/1992
                       09/03/1992
                       09/17/1972
HIGHEST           90   09/15/2023                     89  09/05
                                                          09/12
                                                          09/21
LOWEST            74   09/22/2023                     73  09/16
AVG. MAXIMUM    86.8               87.2    -0.4     89.0
AVG. MINIMUM    77.0               76.3     0.7     75.0
MEAN            81.7
DAYS MAX >= 90     1                3.7    -2.7        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       32.24   2013    18.4" DURING TY PABUK
 MINIMUM        3.91   1951
TOTALS         12.46              15.17   -2.71     0.01
DAILY AVG.      0.42               0.51   -0.09     0.46
DAYS >= .01       27               25.1     1.9        1
DAYS >= .10       20               19.3     0.7        0
DAYS >= .50        7                8.9    -1.9        0
DAYS >= 1.00       3                4.5    -1.5        0
DAYS >= 3.00       0
GREATEST
 24 HR. TOTAL   2.74   09/21 TO 09/21               3.35  09/14

SNOWFALL (INCHES)
TOTALS           0.0
SINCE 7/1        0.0
GREATEST
 SNOW DEPTH        0

DEGREE DAYS
COOLING TOTAL    509                502       7      491
 SINCE 1/1      4495               4630    -135     4503

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

WIND (MPH)
AVERAGE WIND SPEED              5.9
RESULTANT WIND SPEED/DIRECTION   2/140
HIGHEST WIND SPEED/DIRECTION    24/330    DATE  09/06
                                24/070          09/20
HIGHEST GUST SPEED/DIRECTION    35/340    DATE  09/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.37
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     83

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     HEAVY RAIN                12
RAIN                     22     LIGHT RAIN                26
FOG                       0     HAZE                       1

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

$$

IMC