These data are preliminary and have not undergone final quality control by the National Climatic Data Center (NCDC). Therefore, these data are subject to revision. Final and certified climate data can be accessed at the NCDC - http://www.ncdc.noaa.gov.

Climatological Report (Monthly)


000
CXGM50 PGUM 041520
CLMGUM


CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN, GUAM
120 AM CHST THU NOV 5 2009

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

...THE GUAM INTERNATIONAL AIRPORT GU CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1945 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              93   10/06/1989
                        10/04/1984
                        10/10/1969
 LOW               67   10/16/1966
HIGHEST            90   10/26        MM      MM       90  10/14
                        10/21                             10/30
                        10/14                             10/24
LOWEST             74   10/17        MM      MM       73  10/15
                        10/08
AVG. MAXIMUM     86.8              87.8    -1.0     87.8
AVG. MINIMUM     77.0              76.8     0.2     77.1
MEAN             81.9              82.3    -0.4     82.5
DAYS MAX >= 90      3                MM      MM        3
DAYS MAX <= 32      0                MM      MM        0
DAYS MIN <= 32      0                MM      MM        0
DAYS MIN <= 0       0                MM      MM        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        15.39   2006
 MINIMUM         7.11   2008
TOTALS          11.13             11.75   -0.62     7.21
DAILY AVG.       0.36              0.38   -0.02     0.23
DAYS >= .01        27                MM      MM       27
DAYS >= .10        21                MM      MM       15
DAYS >= .50        10                MM      MM        4
DAYS >= 1.00        1                MM      MM        2
GREATEST
 24 HR. TOTAL    2.15   09/30 TO 10/01           10/14 TO 10/15
                                                          10/29 TO 10/29[J)
                                                          10/29 TO 10/29[J)
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    10/15(00) TO 10/15(00)
                                                 10/29(00) TO 10/29(00)9[J)
                                                 10/29(00) TO 10/29(00)9[J)

DEGREE_DAYS
COOLING TOTAL     532               536      -4      551
 SINCE 1/1       5295              5097     198     5243

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

WIND (MPH)
AVERAGE WIND SPEED              8.3
RESULTANT WIND SPEED/DIRECTION   5/093
HIGHEST WIND SPEED/DIRECTION    35/090    DATE  10/15
HIGHEST GUST SPEED/DIRECTION    47/080    DATE  10/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     82

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               3
HEAVY RAIN               18     RAIN                      14
LIGHT RAIN               25     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      25     FOG W/VIS <= 1/4 MILE      1
HAZE                      8

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