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

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

                                          STATION:   BOSTON MA
                                          MONTH:     JUNE
                                          YEAR:      2021
                                          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  77  54  66   3   0   1 0.00  0.0    M 10.2 17 230   M    M   7        22 240
 2  79  58  69   6   0   4 0.00  0.0    M  9.1 20 190   M    M   7        23 220
 3  76  60  68   4   0   3 0.00  0.0    M 10.1 18 210   M    M   9        25 210
 4  81  66  74  10   0   9 0.11  0.0    M 10.3 18 250   M    M   9 38     28 250
 5  91  63  77  13   0  12 0.00  0.0    M 11.1 25 220   M    M   5        33 190
 6  94  70  82  17   0  17 0.00  0.0    M 10.0 18 230   M    M   4        27 260
 7  96  73  85  20   0  20 0.00  0.0    M 12.4 23 250   M    M   2        30 260
 8  95  75  85  19   0  20    T  0.0    M  9.4 17 220   M    M   7 3      21 260
 9  92  74  83  17   0  18 0.05  0.0    M  7.0 16 340   M    M   7 1      22 320
10  76  59  68   2   0   3 0.00  0.0    M 10.9 18  60   M    M   5        23  60
11  66  57  62  -4   3   0 0.12  0.0    M  7.3 15  60   M    M   8 1      19 130
12  71  60  66  -1   0   1 0.59  0.0    M  5.6 14 210   M    M   8 1      18 250
13  85  62  74   7   0   9 0.00  0.0    M 10.2 20 200   M    M   3        24 210
14  70  60  65  -3   0   0 0.53  0.0    M  6.3 14 200   M    M   8 18     19 240
15  73  62  68   0   0   3 0.01  0.0    M  5.1 14  90   M    M   8 123    16  90
16  77  63  70   2   0   5 0.00  0.0    M 11.5 20 290   M    M   3        27 300
17  80  60  70   1   0   5 0.00  0.0    M  8.3 16 280   M    M   3        22 250
18  85  60  73   4   0   8    T  0.0    M  8.9 21 220   M    M   5        29 230
================================================================================
SM 1464 1136         3 138  1.41  0.0    163.7          M      108
================================================================================
AV 81.3 63.1                               9.1 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->    25 220                 33 190
================================================================================
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:     JUNE
                                          YEAR:      2021
                                          LATITUDE:   42 22 N
                                          LONGITUDE:  71  2 W

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

AVERAGE MONTHLY: 72.2   TOTAL FOR MONTH:   1.41    1 = FOG OR MIST
DPTR FM NORMAL:   6.2   DPTR FM NORMAL:   -1.06    2 = FOG REDUCING VISIBILITY
HIGHEST:    96 ON  7    GRTST 24HR  0.71 ON 11-12      TO 1/4 MILE OR LESS
LOWEST:     54 ON  1                               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:  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:   6
MAX 90 OR ABOVE:   5    0.10 INCH OR MORE:   4
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   2
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.     3    CLEAR  (SCALE 0-3)   2
DPTR FM NORMAL   -40    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  5071    CLOUDY (SCALE 8-10)  4
DPTR FM NORMAL  -468

[CDD (BASE 65) ]
TOTAL THIS MO.   138
DPTR FM NORMAL    78    [PRESSURE DATA]
TOTAL FM JAN 1   202    HIGHEST SLP M ON M
DPTR FM NORMAL   109    LOWEST  SLP 29.66 ON 15

[REMARKS]


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