National Weather Service Text Product
AFOS product CLIBOS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIBOS
Product Timestamp: 2021-12-17 07:30 UTC
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833
CDUS41 KBOX 170730
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
230 AM EST FRI DEC 17 2021
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 16 2021...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2021
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 60 300 PM 64 1971 42 18 30
MINIMUM 45 1240 AM 1 1876 29 16 16
1883
AVERAGE 53 36 17 23
PRECIPITATION (IN)
YESTERDAY 0.17 1.81 1960 0.14 0.03 0.04
MONTH TO DATE 0.76 2.30 -1.54 2.75
SINCE DEC 1 0.76 2.30 -1.54 2.75
SINCE JAN 1 50.64 41.59 9.05 34.62
SNOWFALL (IN)
YESTERDAY 0.0 7.6 2007 0.3 -0.3 0.4
MONTH TO DATE 0.3 3.7 -3.4 0.7
SINCE DEC 1 0.3 3.7 -3.4 0.7
SINCE JUL 1 0.3 4.6 -4.3 5.0
DEGREE DAYS
HEATING
YESTERDAY 12 29 -17 42
MONTH TO DATE 362 438 -76 433
SINCE DEC 1 362 438 -76 433
SINCE JUL 1 1150 1452 -302 1320
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1146 800 346 924
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 14.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 200 AM
LOWEST 47 300 PM
AVERAGE 72
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 42 64 2000
MINIMUM TEMPERATURE (F) 29 -4 1876
1919
SUNRISE AND SUNSET
DECEMBER 17 2021......SUNRISE 708 AM EST SUNSET 413 PM EST
DECEMBER 18 2021......SUNRISE 708 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.
$$