WFO Monthly/Daily Climate Data
Issued by NWS Tiyan, Guam

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CXGM50 PGUM 010030
CF6GUM
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   GUAM INTERNATIONAL AIRPORT
                                          MONTH:     MAY
                                          YEAR:      2021
                                          LATITUDE:   13 29 N
                                          LONGITUDE: 144-48 E

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                     12Z  AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  89  79  84   1   0  19 0.04  0.0    0 12.2 20  80   M    M   3 18     26  80
 2  89  79  84   1   0  19 0.22  0.0    0 12.6 23  60   M    M   4        30 100
 3  89  76  83   0   0  18 0.74  0.0    0 13.0 22  80   M    M   3 3      29  70
 4  89  78  84   1   0  19 0.13  0.0    0 14.8 23  80   M    M   3 138    29  80
 5  89  78  84   1   0  19 0.02  0.0    0 15.7 28  60   M    M   4 1      34  50
 6  88  78  83   0   0  18 0.30  0.0    0 15.2 25  90   M    M   3 18     37  90
 7  86  77  82  -1   0  17 0.67  0.0    0 14.3 29  80   M    M   4 8      38  80
 8  87  78  83   0   0  18 0.40  0.0    0 12.1 26  90   M    M   5 8      34  80
 9  87  79  83   0   0  18 0.02  0.0    0 11.7 24  90   M    M   3        32  90
10  88  78  83   0   0  18 0.04  0.0    0 11.0 23  60   M    M   3        27  60
11  88  79  84   1   0  19    T  0.0    0 11.5 20  90   M    M   3        25  90
12  89  79  84   1   0  19    T  0.0    0 12.0 21  80   M    M   3        26  80
13  87  79  83   0   0  18 0.26  0.0    0 13.2 22 100   M    M   3        30 110
14  88  77  83   0   0  18 0.03  0.0    0 15.0 23  80   M    M   3        30  70
15  84  75  80  -3   0  15 2.11  0.0    0 10.8 29  70   M    M   7        34  80
16  87  75  81  -2   0  16 0.09  0.0    0 10.9 22  90   M    M   2        27  70
17  86  79  83   0   0  18 0.03  0.0    0 12.6 21  80   M    M   4        28  80
18  87  78  83   0   0  18 0.10  0.0    0 12.3 21  60   M    M   3        27 100
19  87  77  82  -1   0  17 0.13  0.0    0 10.3 21  70   M    M   4        25  80
20  89  76  83   0   0  18 0.04  0.0    0 10.6 22  60   M    M   3 1      24  60
21  87  78  83   0   0  18 0.09  0.0    0  8.9 18  90   M    M   3        24  90
22  86  76  81  -2   0  16 0.28  0.0    0 10.1 22 120   M    M   3        29 110
23  88  78  83   0   0  18 0.05  0.0    0  9.2 17  70   M    M   2        22  90
24  87  78  83   0   0  18 0.15  0.0    0  9.4 18  80   M    M   3        24  90
25  88  80  84   1   0  19    T  0.0    0  9.7 17  80   M    M   3        22  80
26  89  80  85   2   0  20 0.02  0.0    0 13.3 22  90   M    M   3 8      29  90
27  86  77  82  -1   0  17 0.22  0.0    0 11.0 23  90   M    M   3        35  60
28  86  77  82  -1   0  17 0.27  0.0    0 10.4 24  90   M    M   6 1      30  90
29  88  80  84   1   0  19 0.03  0.0    0 13.5 22  70   M    M   3 8      29  80
30  88  77  83   0   0  18 0.40  0.0    0 12.6 29  80   M    M   6 1      36  80
31  83  78  81  -2   0  16 0.26  0.0    0 12.1 22 110   M    M   5 18     29 120
================================================================================
SM 2709 2413         0 555  7.14  0.0    372.0          M      110
================================================================================
AV 87.4 77.8                              12.0 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->  # 29  80                 38  80
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:   GUAM INTERNATIONAL AIRPORT
                                          MONTH:     MAY
                                          YEAR:      2021
                                          LATITUDE:   13 29 N
                                          LONGITUDE: 144-48 E

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16

AVERAGE MONTHLY: 82.6   TOTAL FOR MONTH:   7.14    1 = FOG OR MIST
DPTR FM NORMAL:  -0.4   DPTR FM NORMAL:    2.69    2 = FOG REDUCING VISIBILITY
HIGHEST:    89 ON 26,20  GRTST 24HR  2.11 ON 15-15      TO 1/4 MILE OR LESS
LOWEST:     75 ON 16,15                             3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   0.0 INCH    5 = HAIL
                        GRTST 24HR  0.0            6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  0            7 = DUSTSTORM OR SANDSTORM:
                                                       VSBY 1/2 MILE OR LESS
                                                   8 = SMOKE OR HAZE
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW
                                                   X = TORNADO
MAX 32 OR BELOW:   0    0.01 INCH OR MORE:  28
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:  16
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.     0    CLEAR  (SCALE 0-3)  15
DPTR FM NORMAL     0    PTCLDY (SCALE 4-7)  16
TOTAL FM JUL 1     0    CLOUDY (SCALE 8-10)  0
DPTR FM NORMAL     0

[CDD (BASE 65) ]
TOTAL THIS MO.   555
DPTR FM NORMAL    -3    [PRESSURE DATA]
TOTAL FM JAN 1  2573    HIGHEST SLP 29.96 ON  1
DPTR FM NORMAL    98    LOWEST  SLP 29.86 ON  1

[REMARKS]
#FINAL-05-21#


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