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548
CDUS41 KBOX 171355
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
855 AM EST THU DEC 17 2020
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 16 2020...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2020
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 30 1158 PM 64 1971 41 -11 35
MINIMUM 16 736 AM 1 1876 28 -12 32
1883
AVERAGE 23 35 -12 34
PRECIPITATION (IN)
YESTERDAY 0.04 1.81 1960 0.12 -0.08 0.00
MONTH TO DATE 2.75 2.05 0.70 3.77
SINCE DEC 1 2.75 2.05 0.70 3.77
SINCE JAN 1 34.62 42.04 -7.42 48.08
SNOWFALL (IN)
YESTERDAY 0.4 7.6 2007 0.3 0.1 0.0
MONTH TO DATE 0.7 3.7 -3.0 10.1
SINCE DEC 1 0.7 3.7 -3.0 10.1
SINCE JUL 1 5.0 5.0 0.0 10.1
DEGREE DAYS
HEATING
YESTERDAY 42 30 12 31
MONTH TO DATE 433 445 -12 428
SINCE DEC 1 433 445 -12 428
SINCE JUL 1 1320 1500 -180 1350
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 924 747 177 1013
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION N (20)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 13.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 1100 PM
LOWEST 38 1200 AM
AVERAGE 58
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 41 64 2000
MINIMUM TEMPERATURE (F) 28 -4 1876
1919
SUNRISE AND SUNSET
DECEMBER 17 2020......SUNRISE 708 AM EST SUNSET 413 PM EST
DECEMBER 18 2020......SUNRISE 709 AM EST SUNSET 413 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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