Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
569
CDUS41 KBOX 170924
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
524 AM EDT SAT MAY 17 2025
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR MAY 16 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 79 426 PM 93 1932 67 12 60
MINIMUM 63 448 AM 34 1936 50 13 53
AVERAGE 71 58 13 57
PRECIPITATION (IN)
YESTERDAY 0.00 4.47 1954 0.10 -0.10 0.40
MONTH TO DATE 3.35 1.63 1.72 2.03
SINCE MAR 1 10.58 9.43 1.15 13.93
SINCE JAN 1 15.89 16.03 -0.14 22.22
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0
2001
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 T 10.6 -10.6 0.1
SINCE JUL 1 28.1 49.2 -21.1 9.8
DEGREE DAYS
HEATING
YESTERDAY 0 7 -7 8
MONTH TO DATE 91 147 -56 158
SINCE MAR 1 1210 1471 -261 1339
SINCE JUL 1 4969 5409 -440 4824
COOLING
YESTERDAY 6 1 5 0
MONTH TO DATE 12 8 4 0
SINCE MAR 1 18 12 6 0
SINCE JAN 1 18 12 6 0
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 8.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 600 AM
LOWEST 62 400 PM
AVERAGE 78
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 92 1977
2017
MINIMUM TEMPERATURE (F) 51 39 1882
SUNRISE AND SUNSET
MAY 17 2025...........SUNRISE 520 AM EDT SUNSET 801 PM EDT
MAY 18 2025...........SUNRISE 520 AM EDT SUNSET 802 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$