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 FRI MAY 5 2017

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

...THE GUAM INTERNATIONAL AIRPORT GU CLIMATE SUMMARY FOR THE MONTH OF APRIL 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1945 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              96   MM
 LOW               72   04/01/2008
                        04/05/2007
                        01/01/2000
HIGHEST            90   04/20        MM      MM       91  04/30
                        04/15                             04/29
                                                          04/21
LOWEST             74   04/24        MM      MM       75  04/28
                                                          04/26
AVG. MAXIMUM     88.0              87.3     0.7     89.3
AVG. MINIMUM     77.9              76.5     1.4     78.4
MEAN             83.0              81.9     1.1     83.9
DAYS MAX >= 90      2               0.9     1.1       11
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           8.60              3.58    5.02     1.31
DAILY AVG.       0.29              0.12    0.17     0.04
DAYS >= .01        22              18.8     3.2       17
DAYS >= .10        12               7.9     4.1        6
DAYS >= .50         4               1.1     2.9        0
DAYS >= 1.00        3               0.6     2.4        0
GREATEST
 24 HR. TOTAL    2.52   04/24 TO 04/24           04/25 TO 04/26
                                                          04/30 TO 04/30
                                                          04/30 TO 04/30
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    04/26(00) TO 04/26(00)
                                                 04/30(00) TO 04/30(00)0
                                                 04/30(00) TO 04/30(00)0

DEGREE_DAYS
COOLING TOTAL     545               507      38      570
 SINCE 1/1       2065              1884     181     2060

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

WIND (MPH)
AVERAGE WIND SPEED              10.3
RESULTANT WIND SPEED/DIRECTION  10/082
HIGHEST WIND SPEED/DIRECTION    29/070    DATE  04/16
HIGHEST GUST SPEED/DIRECTION    39/060    DATE  04/16

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     81

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                      10
LIGHT RAIN               22     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE      0
HAZE                      7

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

$$


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