WFO Monthly/Daily Climate Data Issued by NWS Boston, MA
000
CXUS51 KBOX 010810
CF6BOS
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: BOSTON MA
MONTH: MAY
YEAR: 2021
LATITUDE: 42 22 N
LONGITUDE: 71 2 W
TEMPERATURE IN F: :PCPN: SNOW: WIND :SUNSHINE: SKY :PK WND
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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
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1 65 44 55 1 10 0 0.02 0.0 M 14.3 24 290 M M 6 1 32 310
2 77 50 64 10 1 0 0.01 0.0 M 13.5 25 280 M M 8 33 270
3 65 50 58 3 7 0 0.02 0.0 M 9.0 18 80 M M 9 23 90
4 55 48 52 -3 13 0 0.67 0.0 M 10.7 22 30 M M 10 1 26 20
5 50 48 49 -6 16 0 0.53 0.0 M 7.8 13 70 M M 10 18 15 60
6 67 50 59 3 6 0 0.00 0.0 M 10.8 23 300 M M 6 30 320
7 56 48 52 -4 13 0 0.00 0.0 M 10.3 20 80 M M 6 24 90
8 55 46 51 -5 14 0 0.00 0.0 M 11.5 21 220 M M 10 25 220
9 69 49 59 3 6 0 T 0.0 M 12.4 26 220 M M 7 31 240
10 63 49 56 -1 9 0 0.34 0.0 M 8.0 14 260 M M 9 1 18 230
11 66 51 59 2 6 0 0.00 0.0 M 14.7 22 250 M M 4 39 280
12 69 48 59 2 6 0 T 0.0 M 10.4 29 320 M M 4 38 290
13 71 51 61 3 4 0 0.00 0.0 M 7.3 15 360 M M 3 23 340
14 77 56 67 9 0 2 0.00 0.0 M 9.8 18 290 M M 3 24 290
15 74 61 68 10 0 3 0.00 0.0 M 8.9 18 120 M M 6 29 170
16 79 58 69 11 0 4 0.01 0.0 M 8.5 21 110 M M 7 3 27 210
17 75 54 65 6 0 0 0.00 0.0 M 6.9 18 90 M M 3 22 90
18 84 59 72 13 0 7 T 0.0 M 9.3 21 260 M M 5 26 320
19 72 58 65 6 0 0 0.00 0.0 M 10.2 17 100 M M 4 22 360
20 69 55 62 2 3 0 0.00 0.0 M 8.7 18 100 M M 4 8 22 90
21 82 56 69 9 0 4 T 0.0 M 10.7 17 220 M M 7 21 200
22 89 62 76 16 0 11 0.00 0.0 M 7.9 16 40 M M 9 20 40
23 90 62 76 16 0 11 T 0.0 M 12.4 29 320 M M 6 38 330
24 67 55 61 0 4 0 0.00 0.0 M 13.1 23 110 M M 4 27 190
25 79 53 66 5 0 1 0.00 0.0 M 15.8 23 210 M M 6 29 230
26 92 63 78 17 0 13 0.28 0.0 M 14.5 22 190 M M 6 13 28 200
27 83 62 73 11 0 8 0.01 0.0 M 12.1 21 360 M M 7 26 300
28 62 45 54 -8 11 0 1.08 0.0 M 11.3 22 60 M M 9 1 28 60
29 51 47 49 -13 16 0 1.08 0.0 M 19.7 29 50 M M 10 1 38 50
30 51 50 51 -11 14 0 0.72 0.0 M 17.2 24 60 M M 10 18 32 60
31 62 51 57 -6 8 0 0.15 0.0 M 9.1 16 290 M M 8 1 23 290
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SM 2166 1639 167 64 4.92 0.0 346.8 M 206
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AV 69.9 52.9 11.2 FASTST M M 7 MAX(MPH)
MISC ----> # 29 320 39 280
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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: 2021
LATITUDE: 42 22 N
LONGITUDE: 71 2 W
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 61.4 TOTAL FOR MONTH: 4.92 1 = FOG OR MIST
DPTR FM NORMAL: 3.0 DPTR FM NORMAL: 1.67 2 = FOG REDUCING VISIBILITY
HIGHEST: 92 ON 26 GRTST 24HR 2.16 ON 28-29 TO 1/4 MILE OR LESS
LOWEST: 44 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: 13
MAX 90 OR ABOVE: 2 0.10 INCH OR MORE: 8
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 5
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 2
[HDD (BASE 65) ]
TOTAL THIS MO. 167 CLEAR (SCALE 0-3) 1
DPTR FM NORMAL -67 PTCLDY (SCALE 4-7) 19
TOTAL FM JUL 1 5068 CLOUDY (SCALE 8-10) 11
DPTR FM NORMAL -426
[CDD (BASE 65) ]
TOTAL THIS MO. 64
DPTR FM NORMAL 35 [PRESSURE DATA]
TOTAL FM JAN 1 64 HIGHEST SLP 30.51 ON 21
DPTR FM NORMAL 31 LOWEST SLP 29.48 ON 1
[REMARKS]
#FINAL-05-21#