National Weather Service Text Product
AFOS product CLIBOS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIBOS
Product Timestamp: 2021-05-17 06:10 UTC
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810
CDUS41 KBOX 170610
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
210 AM EDT MON MAY 17 2021
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR MAY 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 79 1209 PM 93 1932 67 12 68
MINIMUM 58 930 PM 34 1936 50 8 49
AVERAGE 69 58 11 59
PRECIPITATION (IN)
YESTERDAY 0.01 4.47 1954 0.10 -0.09 0.04
MONTH TO DATE 1.60 1.63 -0.03 2.12
SINCE MAR 1 7.93 9.43 -1.50 10.05
SINCE JAN 1 13.00 16.03 -3.03 14.74
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0
2001
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 6
MONTH TO DATE 111 147 -36 186
SINCE MAR 1 1235 1471 -236 1505
SINCE JUL 1 5012 5409 -397 4888
COOLING
YESTERDAY 4 1 3 0
MONTH TO DATE 9 8 1 1
SINCE MAR 1 9 12 -3 1
SINCE JAN 1 9 12 -3 1
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 8.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 58 1000 PM
LOWEST 23 1100 AM
AVERAGE 41
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 92 1977
2017
MINIMUM TEMPERATURE (F) 51 39 1882
SUNRISE AND SUNSET
MAY 17 2021...........SUNRISE 520 AM EDT SUNSET 801 PM EDT
MAY 18 2021...........SUNRISE 520 AM EDT SUNSET 802 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$