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875
CDUS41 KBOX 210538
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1238 AM EST MON DEC 21 2020
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 20 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 36 410 PM 63 1957 40 -4 33
MINIMUM 26 805 AM -11 1875 27 -1 17
1942
AVERAGE 31 33 -2 25
PRECIPITATION (IN)
YESTERDAY 0.03 1.35 1936 0.11 -0.08 0.00
MONTH TO DATE 4.08 2.52 1.56 4.42
SINCE DEC 1 4.08 2.52 1.56 4.42
SINCE JAN 1 35.95 42.51 -6.56 48.73
SNOWFALL (IN)
YESTERDAY T 10.0 2009 0.3 -0.3 0.0
MONTH TO DATE 13.0 5.0 8.0 11.5
SINCE DEC 1 13.0 5.0 8.0 11.5
SINCE JUL 1 17.3 6.3 11.0 11.5
DEGREE DAYS
HEATING
YESTERDAY 34 32 2 40
MONTH TO DATE 585 570 15 578
SINCE DEC 1 585 570 15 578
SINCE JUL 1 1472 1625 -153 1500
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
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WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 3.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 600 PM
LOWEST 68 200 AM
AVERAGE 80
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THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 39 65 2018
MINIMUM TEMPERATURE (F) 26 -5 1942
SUNRISE AND SUNSET
DECEMBER 21 2020......SUNRISE 710 AM EST SUNSET 415 PM EST
DECEMBER 22 2020......SUNRISE 711 AM EST SUNSET 415 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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