WFO Monthly/Daily Climate Data
Issued by NWS Upton, NY

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000
CXUS51 KOKX 010910
CF6ISP
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   ISLIP NY
                                          MONTH:     APRIL
                                          YEAR:      2021
                                          LATITUDE:   40 47 N
                                          LONGITUDE:  73  6 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  56  37  47   3  18   0 0.06    T    0 17.4 30 340   M    M   9 1      44 330
 2  37  30  34 -11  31   0 0.00  0.0    0 12.2 23 330   M    M   8        30 350
 3  50  28  39  -6  26   0 0.00  0.0    0  9.3 21 320   M    M   2        26 320
 4  61  32  47   2  18   0 0.00  0.0    0  5.9 20 340   M    M   4        24 270
 5  67  45  56  10   9   0 0.00  0.0    0 13.9 26 330   M    M   1        35 310
 6  66  37  52   6  13   0 0.00  0.0    0 10.8 21 310   M    M   1        28 310
 7  68  40  54   8  11   0 0.00  0.0    0  6.0 13 120   M    M   4        16 150
 8  69  42  56   9   9   0 0.00  0.0    0  6.5 15 160   M    M   2        19 160
 9  52  43  48   1  17   0    T  0.0    0  6.0 12 200   M    M   8 1      15 200
10  63  46  55   8  10   0 0.04  0.0    0  5.7 14 220   M    M   9 12     19 230
11  59  46  53   5  12   0 0.46  0.0    0  9.6 22  70   M    M  10 12     28  80
12  54  44  49   1  16   0 0.31  0.0    0  9.6 22  70   M    M  10 1      30  70
13  64  42  53   5  12   0 0.00  0.0    0  9.4 20 120   M    M   5        23 120
14  65  42  54   5  11   0 0.00  0.0    0  5.4 14 210   M    M   6        16 230
15  54  42  48  -1  17   0 1.80  0.0    0  9.7 20  30   M    M  10 1      24 110
16  54  39  47  -2  18   0 0.12  0.0    0 11.9 21 320   M    M   9 1      27 320
17  55  39  47  -3  18   0 0.00  0.0    0  8.9 20 340   M    M   7        25 340
18  64  46  55   5  10   0 0.00  0.0    0  7.7 21 220   M    M   8        25 230
19  64  44  54   4  11   0    T  0.0    M  4.2 15 170   M    M   6 18     18 170
20  66  42  54   3  11   0 0.00  0.0    0 10.5 22 210   M    M   3 1      32 210
21  60  38  49  -2  16   0 0.23  0.0    0 15.0 25 300   M    M   7 13     38 210
22  48  34  41 -10  24   0 0.00  0.0    0 17.2 30 290   M    M   5        41 300
23  63  37  50  -2  15   0 0.00  0.0    0 13.5 25 270   M    M   2        32 250
24  69  41  55   3  10   0 0.00  0.0    M  9.4 22 210   M    M   4        28 220
25  59  49  54   2  11   0 0.50  0.0    0  8.8 18 330   M    M   8 1      24 320
26  59  42  51  -1  14   0 0.00  0.0    0 13.5 26 300   M    M   2        35 270
27  59  42  51  -2  14   0    T  0.0    0  5.8 15 170   M    M   7        18 190
28  74  49  62   9   3   0 0.01  0.0    0  6.7 21 360   M    M   8        26 360
29  68  54  61   7   4   0 0.30  0.0    M  7.4 23 220   M    M   9 1      31 230
30  69  46  58   4   7   0    T  0.0    M 19.4 35 300   M    M   6        45 300
================================================================================
SM 1816 1238       416   0  3.83    T    297.3          M      180
================================================================================
AV 60.5 41.3                               9.9 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->    35 300                 45 300
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:   ISLIP NY
                                          MONTH:     APRIL
                                          YEAR:      2021
                                          LATITUDE:   40 47 N
                                          LONGITUDE:  73  6 W

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

AVERAGE MONTHLY: 50.9   TOTAL FOR MONTH:   3.83    1 = FOG OR MIST
DPTR FM NORMAL:   1.8   DPTR FM NORMAL:   -0.51    2 = FOG REDUCING VISIBILITY
HIGHEST:    74 ON 28    GRTST 24HR  1.86 ON 15-16      TO 1/4 MILE OR LESS
LOWEST:     28 ON  3                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  T            5 = HAIL
                        GRTST 24HR   T   ON  1- 1  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:  10
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   7
MIN 32 OR BELOW:   3    0.50 INCH OR MORE:   2
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   416    CLEAR  (SCALE 0-3)   6
DPTR FM NORMAL   -63    PTCLDY (SCALE 4-7)  17
TOTAL FM JUL 1  4628    CLOUDY (SCALE 8-10)  7
DPTR FM NORMAL  -542

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL    -2    [PRESSURE DATA]
TOTAL FM JAN 1     0    HIGHEST SLP M ON M
DPTR FM NORMAL    -2    LOWEST  SLP 29.32 ON 30

[REMARKS]
#FINAL-04-21#


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