National Weather Service Text Product
AFOS product CLIBOS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIBOS
Product Timestamp: 2021-05-18 05:32 UTC
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669
CDUS41 KBOX 180532
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
132 AM EDT TUE MAY 18 2021
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR MAY 17 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 75 1013 AM 92 1977 67 8 63
2017
MINIMUM 54 306 AM 39 1882 51 3 49
AVERAGE 65 59 6 56
PRECIPITATION (IN)
YESTERDAY 0.00 1.88 1916 0.09 -0.09 0.00
MONTH TO DATE 1.60 1.72 -0.12 2.12
SINCE MAR 1 7.93 9.52 -1.59 10.05
SINCE JAN 1 13.00 16.12 -3.12 14.74
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 T
SINCE MAR 1 0.2 10.6 -10.4 0.7
SINCE JUL 1 38.6 49.2 -10.6 15.8
DEGREE DAYS
HEATING
YESTERDAY 0 7 -7 9
MONTH TO DATE 111 154 -43 195
SINCE MAR 1 1235 1478 -243 1514
SINCE JUL 1 5012 5416 -404 4897
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 9 9 0 1
SINCE MAR 1 9 13 -4 1
SINCE JAN 1 9 13 -4 1
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION E (100)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 6.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67 400 AM
LOWEST 34 1000 AM
AVERAGE 51
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 95 2017
MINIMUM TEMPERATURE (F) 51 37 2002
SUNRISE AND SUNSET
MAY 18 2021...........SUNRISE 520 AM EDT SUNSET 802 PM EDT
MAY 19 2021...........SUNRISE 519 AM EDT SUNSET 803 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$