National Weather Service Text Product
AFOS product CLIBOS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIBOS
Product Timestamp: 2020-12-19 12:38 UTC
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587
CDUS41 KBOX 191238
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
738 AM EST SAT DEC 19 2020
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR DECEMBER 17 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 32 613 AM 64 2000 41 -9 38
MINIMUM 21 125 PM -4 1876 28 -7 27
1919
AVERAGE 27 34 -7 33
PRECIPITATION (IN)
YESTERDAY 1.30 2.82 1970 0.12 1.18 0.65
MONTH TO DATE 4.05 2.17 1.88 4.42
SINCE DEC 1 4.05 2.17 1.88 4.42
SINCE JAN 1 35.92 42.16 -6.24 48.73
SNOWFALL (IN)
YESTERDAY 12.3 12.7 2020 0.3 12.0 1.3
MONTH TO DATE 13.0 4.0 9.0 11.4
SINCE DEC 1 13.0 4.0 9.0 11.4
SINCE JUL 1 17.3 5.3 12.0 11.4
DEGREE DAYS
HEATING
YESTERDAY 38 31 7 32
MONTH TO DATE 471 476 -5 460
SINCE DEC 1 471 476 -5 460
SINCE JUL 1 1358 1531 -173 1382
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 19 RESULTANT WIND DIRECTION N (20)
HIGHEST WIND SPEED 39 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 22.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LT FREEZING RAIN
HEAVY SNOW
SNOW
LIGHT SNOW
FOG
FOG W/VISIBILITY <= 1/4 MILE
BLOWING SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 400 AM
LOWEST 74 900 PM
AVERAGE 87
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 40 61 1915
1928
1990
MINIMUM TEMPERATURE (F) 27 -6 1919
SUNRISE AND SUNSET
DECEMBER 18 2020......SUNRISE 709 AM EST SUNSET 413 PM EST
DECEMBER 19 2020......SUNRISE 709 AM EST SUNSET 414 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$