Climatological Report (Monthly)
Issued by NWS Tiyan, Guam

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CXGM50 PGUM 041520
CLMGUM


CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN, GUAM
120 AM CHST MON FEB 5 2018

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

...THE GUAM INTERNATIONAL AIRPORT GU CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              94   01/09/1989
 LOW               66   01/18/2000
HIGHEST            90   01/19        MM      MM       89  01/24
                        01/09                             01/04
LOWEST             72   01/29        MM      MM       75  01/17
                        01/07                             01/16
                                                          01/12
AVG. MAXIMUM     87.9              84.9     3.0     86.5
AVG. MINIMUM     77.0              75.5     1.5     76.7
MEAN             82.5              80.2     2.3     81.6
DAYS MAX >= 90      2               0.0     2.0        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           MM   MM
 MINIMUM           MM   MM
TOTALS           0.94              4.96   -4.02     6.22
DAILY AVG.       0.03              0.16   -0.13     0.20
DAYS >= .01        11              20.3    -9.3       23
DAYS >= .10         4               9.9    -5.9       17
DAYS >= .50         0               2.4    -2.4        3
DAYS >= 1.00        0               0.8    -0.8        2
GREATEST
 24 HR. TOTAL    0.23   01/21 TO 01/21           01/18 TO 01/18
                                                          01/31 TO 01/31
                                                          01/31 TO 01/31
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    01/18(00) TO 01/18(00)
                                                 01/31(00) TO 01/31(00)1
                                                 01/31(00) TO 01/31(00)1

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM
 24 HR TOTAL       MM
 SNOW DEPTH        MM   MM
TOTALS            0.0               0.0     0.0      0.0
 LIQUID EQUIV    0.00              0.00    0.00     0.00
SINCE 7/1         0.0               0.0     0.0      0.0
 LIQUID 7/1      0.00              0.00    0.00     0.00
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       0               0.0     0.0        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   01/31 TO 01/31           01/31 TO 01/31
                                                          01/31 TO 01/31
                                                          01/31 TO 01/31
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    01/31(00) TO 01/31(00)
                                                 01/31(00) TO 01/31(00)1
                                                 01/31(00) TO 01/31(00)1

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
 SINCE 7/1          0                 0       0        0
COOLING TOTAL     550               471      79      521
 SINCE 1/1        550               468      82      521

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
..................................................

WIND (MPH)
AVERAGE WIND SPEED              11.9
RESULTANT WIND SPEED/DIRECTION  11/070
HIGHEST WIND SPEED/DIRECTION    29/060    DATE  01/08
HIGHEST GUST SPEED/DIRECTION    35/060    DATE  01/08

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)     76

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      0
HAZE                      4

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

$$


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