WFO Monthly/Daily Climate Data
Issued by NWS

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CXUS52 TJSJ 240836
CF6JSJ
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   SAN JUAN AREA/PR
                                          MONTH:     MAY
                                          YEAR:      2025
                                          LATITUDE:   18 25 N
                                          LONGITUDE:  66  0 W

  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  85  75  80  -1   0  15 0.07    M    M  4.8 18  70   M    M   6 1      24  40
 2  86  74  80  -1   0  15 0.49    M    M  7.3 21  80   M    M   5 13     29  70
 3  83  74  79  -2   0  14 1.55    M    M  7.6 20  80   M    M   8 13     27  80
 4  85  75  80  -1   0  15    T    M    M  6.9 21  60   M    M   5        27  60
 5  87  75  81   0   0  16 0.05    M    M  8.4 21  60   M    M   3        28  70
 6  84  76  80  -1   0  15    T    M    M  7.4 20  70   M    M   6        25  60
 7  85  75  80  -1   0  15 0.00    M    M  6.7 16  50   M    M   4        25  20
 8  86  76  81   0   0  16 0.15    M    M  7.0 17  70   M    M   4 1      28  20
 9  86  74  80  -1   0  15 0.19    M    M  7.7 16  80   M    M   6 1      23 130
10  86  75  81   0   0  16 0.54    M    M  6.9 23  90   M    M   5 13     32  80
11  88  77  83   2   0  18 0.17    M    M 10.7 25  80   M    M   4 18     34  80
12  86  76  81   0   0  16    T    M    M 10.8 25  70   M    M   4        32  70
13  86  76  81   0   0  16 0.07    M    M 12.3 26  80   M    M   6 1      35 110
14  85  74  80  -1   0  15 0.39    M    M 10.6 25  70   M    M   5 1      33 100
15  87  73  80  -1   0  15 0.63    M    M  9.1 22  90   M    M   8 1      28  80
16  87  76  82   0   0  17 0.17    M    M  6.4 22  70   M    M   7 13     29  70
17  81  74  78  -4   0  13 0.02    M    M  7.0 22  80   M    M   5        30  90
18  85  74  80  -2   0  15 0.03    M    M  4.0 15  80   M    M   4        20  50
19  86  75  81  -1   0  16 0.90    M    M  3.7 21 270   M    M   5 13     25 270
20  91  76  84   2   0  19 0.29    M    M  4.0 20  70   M    M   4 1      23  40
21  87  77  82   0   0  17 0.11    M    M  8.2 21  80   M    M   3        25  70
22  89  77  83   1   0  18 0.16    M    M 10.2 23  60   M    M   4 1      28  60
23  89  77  83   1   0  18 0.15    M    M 10.0 24  90   M    M   4        30  90
================================================================================
SM 1980 1731         0 365  6.13    M    177.7          M      115
================================================================================
AV 86.1 75.3                               7.7 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->    26  80                 35 110
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   SAN JUAN AREA/PR
                                          MONTH:     MAY
                                          YEAR:      2025
                                          LATITUDE:   18 25 N
                                          LONGITUDE:  66  0 W

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

AVERAGE MONTHLY: 80.7   TOTAL FOR MONTH:   6.13    1 = FOG OR MIST
DPTR FM NORMAL:  -0.7   DPTR FM NORMAL:    2.01    2 = FOG REDUCING VISIBILITY
HIGHEST:    91 ON 20    GRTST 24HR  1.70 ON  2- 3      TO 1/4 MILE OR LESS
LOWEST:     73 ON 15                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  M            5 = HAIL
                        GRTST 24HR    M  ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  M  ON   M    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:  19
MAX 90 OR ABOVE:   1    0.10 INCH OR MORE:  14
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   4
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.     0    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL     0    PTCLDY (SCALE 4-7)  22
TOTAL FM JUL 1     0    CLOUDY (SCALE 8-10)  0
DPTR FM NORMAL     0

[CDD (BASE 65) ]
TOTAL THIS MO.   365
DPTR FM NORMAL   -10    [PRESSURE DATA]
TOTAL FM JAN 1  2182    HIGHEST SLP M ON M
DPTR FM NORMAL   187    LOWEST  SLP 29.89 ON  1

[REMARKS]