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457
CDUS41 KBOX 120623
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
223 AM EDT WED MAY 12 2021
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR MAY 11 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 66 MM 91 1993 65 1 62
MINIMUM 51 MM 33 1900 49 2 44
AVERAGE 59 57 2 53
PRECIPITATION (IN)
YESTERDAY 0.00 1.42 1989 0.10 -0.10 0.23
MONTH TO DATE 1.59 1.15 0.44 1.41
SINCE MAR 1 7.92 8.95 -1.03 9.34
SINCE JAN 1 12.99 15.55 -2.56 14.03
SNOWFALL (IN)
YESTERDAY 0.0 T 1945 0.0 0.0 0.0
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 6 8 -2 12
MONTH TO DATE 101 108 -7 138
SINCE MAR 1 1225 1432 -207 1457
SINCE JUL 1 5002 5370 -368 4840
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 3 -3 1
SINCE MAR 1 0 7 -7 1
SINCE JAN 1 0 7 -7 1
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WIND (MPH)
RESULTANT WIND SPEED 14 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 14.7
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 62 1200 AM
LOWEST 20 500 PM
AVERAGE 41
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THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 88 1991
2001
MINIMUM TEMPERATURE (F) 49 33 1907
SUNRISE AND SUNSET
MAY 12 2021...........SUNRISE 526 AM EDT SUNSET 756 PM EDT
MAY 13 2021...........SUNRISE 525 AM EDT SUNSET 757 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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