National Weather Service Text Product
AFOS product CLIBOS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIBOS
Product Timestamp: 2021-05-20 05:32 UTC
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563
CDUS41 KBOX 200532
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
132 AM EDT THU MAY 20 2021
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR MAY 19 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 72 1232 AM 90 1949 67 5 55
1986
2017
MINIMUM 58 1149 PM 38 1882 51 7 47
AVERAGE 65 59 6 51
PRECIPITATION (IN)
YESTERDAY 0.00 1.55 1900 0.10 -0.10 0.00
MONTH TO DATE 1.60 1.92 -0.32 2.12
SINCE MAR 1 7.93 9.72 -1.79 10.05
SINCE JAN 1 13.00 16.32 -3.32 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 14
MONTH TO DATE 111 168 -57 221
SINCE MAR 1 1235 1492 -257 1540
SINCE JUL 1 5012 5430 -418 4923
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 16 11 5 1
SINCE MAR 1 16 15 1 1
SINCE JAN 1 16 15 1 1
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 10.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 56 1100 PM
LOWEST 32 800 AM
AVERAGE 44
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 91 1996
MINIMUM TEMPERATURE (F) 51 40 1892
SUNRISE AND SUNSET
MAY 20 2021...........SUNRISE 518 AM EDT SUNSET 804 PM EDT
MAY 21 2021...........SUNRISE 517 AM EDT SUNSET 805 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$