757
CDUS41 KBOX 202123
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
523 PM EDT TUE MAY 20 2025
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 20 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 57 1218 PM 91 1996 68 -11 60
MINIMUM 49 603 AM 40 1892 51 -2 52
AVERAGE 53 60 -7 56
PRECIPITATION (IN)
TODAY 0.00 1.83 2023 0.11 -0.11 0.00
MONTH TO DATE 3.35 2.03 1.32 2.72
SINCE MAR 1 10.58 9.83 0.75 14.62
SINCE JAN 1 15.89 16.43 -0.54 22.91
SNOWFALL (IN)
TODAY 0.0 0.0 2000 0.0 0.0 0.0
2001
2002
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 T 10.6 -10.6 0.1
SINCE JUL 1 28.1 49.2 -21.1 9.8
DEGREE DAYS
HEATING
TODAY 12 6 6 9
MONTH TO DATE 111 174 -63 192
SINCE MAR 1 1230 1498 -268 1373
SINCE JUL 1 4989 5436 -447 4858
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 16 12 4 0
SINCE MAR 1 22 16 6 0
SINCE JAN 1 22 16 6 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 13.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 300 PM
LOWEST 55 1100 AM
AVERAGE 66
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 93 1921
MINIMUM TEMPERATURE (F) 52 41 1907
SUNRISE AND SUNSET
MAY 20 2025...........SUNRISE 518 AM EDT SUNSET 804 PM EDT
MAY 21 2025...........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.
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