CDGM40 PGUM 121642

CLIGUM



CLIMATE REPORT 

NATIONAL WEATHER SERVICE TIYAN GUAM

242 AM CHST SAT DEC 13 2025



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



...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 2025...



CLIMATE NORMAL PERIOD: 1991 TO 2020

CLIMATE RECORD PERIOD: 1945 TO 2025





WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST      

                VALUE   (LST)  VALUE       VALUE  FROM      YEAR     

                                                  NORMAL           

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

TEMPERATURE (F)                                                          

 YESTERDAY                                                           

  MAXIMUM         88  11:09 AM  89    2014  87      1       87        

                                      2018                           

  MINIMUM         76   2:24 AM  61    1962  77     -1       75        

  AVERAGE         82                        82      0       81     



PRECIPITATION (IN)                                                    

  YESTERDAY        0.02          4.47 2016   0.16  -0.14     0.00     

  MONTH TO DATE    1.44                      2.29  -0.85     1.84     

  SINCE DEC 1      1.44                      2.29  -0.85     1.84     

  SINCE JAN 1     90.99                     95.11  -4.12    97.49     



DEGREE DAYS                                                           

 HEATING                                                              

  YESTERDAY        0                         0      0        0        

  MONTH TO DATE    0                         0      0        0        

  SINCE DEC 1      0                         0      0        0        

  SINCE JUL 1      0                         0      0        0        



 COOLING                                                              

  YESTERDAY       17                        17      0       16        

  MONTH TO DATE  200                       204     -4      202        

  SINCE DEC 1    200                       204     -4      202        

  SINCE JAN 1   5851                      5888    -37     5838        

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





WIND (MPH)                                                            

  RESULTANT WIND SPEED  10   RESULTANT WIND DIRECTION  NE (60)        

  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NE (50)        

  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     E (80)        

  AVERAGE WIND SPEED    10.5                                        





SKY COVER                                                             

  POSSIBLE SUNSHINE  MM                                                 

  AVERAGE SKY COVER 0.4                                                 





WEATHER CONDITIONS                                                    

THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         

  LIGHT RAIN                                                          





RELATIVE HUMIDITY (PERCENT)

 HIGHEST    94           3:00 AM                                      

 LOWEST     61           3:00 PM                                      

 AVERAGE    78                                                        



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





THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY

                         NORMAL    RECORD    YEAR                     

 MAXIMUM TEMPERATURE (F)   87        90      2014                      

                                             2018                     

 MINIMUM TEMPERATURE (F)   77        61      1966                      





SUNRISE AND SUNSET                                                    

DECEMBER 13 2025......SUNRISE   6:35 AM CHST  SUNSET   5:55 PM CHST    

DECEMBER 14 2025......SUNRISE   6:35 AM CHST  SUNSET5:56 PM CHST    





-  INDICATES NEGATIVE NUMBERS.

R  INDICATES RECORD WAS SET OR TIED.

MM INDICATES DATA IS MISSING.

T  INDICATES TRACE AMOUNT.









$$