Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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CDUS41 KBOX 190539
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
139 AM EDT SAT SEP 19 2026
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 18 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 80 158 PM 90 1891 72 8 74
1906
1955
MINIMUM 62 1159 PM 43 1875 58 4 62
AVERAGE 71 65 6 68
PRECIPITATION (IN)
YESTERDAY T 2.87 2004 0.13 -0.13 0.11
MONTH TO DATE 1.70 2.03 -0.33 1.55
SINCE SEP 1 1.70 2.03 -0.33 1.55
SINCE JAN 1 19.26 30.07 -10.81 26.50
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0
2001
2002
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 7 22 -15 18
SINCE SEP 1 7 22 -15 18
SINCE JUL 1 7 31 -24 25
COOLING
YESTERDAY 6 2 4 3
MONTH TO DATE 77 72 5 38
SINCE SEP 1 77 72 5 38
SINCE JAN 1 994 772 222 795
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NW (320)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 10.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 200 AM
LOWEST 37 500 PM
AVERAGE 65
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 92 1983
MINIMUM TEMPERATURE (F) 57 42 1929
SUNRISE AND SUNSET
SEPTEMBER 19 2026.....SUNRISE 628 AM EDT SUNSET 647 PM EDT
SEPTEMBER 20 2026.....SUNRISE 629 AM EDT SUNSET 645 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$