WFO Monthly/Daily Climate Data
Issued by NWS Boston, MA

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CXUS51 KBOX 201200
CF6BOS
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   BOSTON MA
                                          MONTH:     MAY
                                          YEAR:      2013
                                          LATITUDE:   42 22 N
                                          LONGITUDE:  71  2 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  60  45  53   0  12   0 0.00  0.0    M  6.3 15 110   M    M   2        17 120
 2  70  47  59   5   6   0    T  0.0    M  8.9 25  70   M    M   4        29  70
 3  53  44  49  -5  16   0 0.00  0.0    M 10.0 20  80   M    M   2        24  60
 4  52  44  48  -6  17   0 0.00  0.0    M  9.1 16  90   M    M   1        21  90
 5  53  40  47  -8  18   0 0.00  0.0    M  8.9 15  90   M    M   3        17 100
 6  55  43  49  -6  16   0 0.00  0.0    M  6.9 15  80   M    M   5 12     17  80
 7  72  47  60   5   5   0 0.00  0.0    M  9.4 18  90   M    M   3        22  90
 8  66  53  60   4   5   0 0.37  0.0    0 10.9 22 110   M    M   7 12     26 110
 9  63  53  58   2   7   0 0.61  0.0    0  4.9 14  70   M    M   9 123    15  90
10  69  56  63   7   2   0 0.06  0.0    0  6.6 16 110   M    M   7 1      20 100
11  72  59  66  10   0   1 0.02  0.0    0 12.1 20 200   M    M   9 1      43 210
12  73  51  62   5   3   0 0.04  0.0    0 10.7 25 290   M    M   8 1      33 280
13  60  46  53  -4  12   0 0.00  0.0    M 12.3 21 290   M    M   4        31 250
14  60  44  52  -5  13   0    T  0.0    M 11.4 16 320   M    M   6        24 320
15  67  44  56  -2   9   0    T  0.0    M 10.5 25 190   M    M   5        31 200
16  82  53  68  10   0   3 0.00  0.0    M 13.1 25 260   M    M   2        36 270
17  70  54  62   4   3   0 0.00  0.0    M 11.6 22 320   M    M   3        30 320
18  67  51  59   1   6   0 0.00  0.0    M 10.2 20 110   M    M   4        23 110
19  63  50  57  -2   8   0 0.17  0.0    M  8.0 20  90   M    M   8 1      24  90
================================================================================
SM 1227  924       158   4  1.27     0.0 181.8          M       92
================================================================================
AV 64.6 48.6                               9.6 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 25  70               # 43  210
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:  BOSTON MA
                                          MONTH:    MAY
                                          YEAR:     2013
                                          LATITUDE:   42 22 N
                                          LONGITUDE:  71  2 W

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

AVERAGE MONTHLY: 56.6   TOTAL FOR MONTH:   1.27    1 = FOG OR MIST
DPTR FM NORMAL:   0.5   DPTR FM NORMAL:   -0.72    2 = FOG REDUCING VISIBILITY
HIGHEST:    82 ON 16    GRTST 24HR  0.98 ON  8- 9      TO 1/4 MILE OR LESS
LOWEST:     40 ON  5                               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:   6
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   158    CLEAR  (SCALE 0-3)   6
DPTR FM NORMAL   -21    PTCLDY (SCALE 4-7)  11
TOTAL FM JUL 1  5274    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL  -286

[CDD (BASE 65) ]
TOTAL THIS MO.     4
DPTR FM NORMAL    -2    [PRESSURE DATA]
TOTAL FM JAN 1     4    HIGHEST SLP M ON M
DPTR FM NORMAL    -5    LOWEST  SLP 29.56 ON 12

[REMARKS]



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