504
CDUS41 KBOX 092126
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
526 PM EDT SAT MAY 09 2026
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 9 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 53 345 PM 95 1979 65 -12 56
MINIMUM 42 322 AM 35 1977 48 -6 48
AVERAGE 48 56 -8 52
PRECIPITATION (IN)
TODAY 0.05 2.50 1954 0.10 -0.05 1.09
MONTH TO DATE 0.28 0.95 -0.67 2.56
SINCE MAR 1 5.39 8.75 -3.36 9.79
SINCE JAN 1 8.68 15.35 -6.67 15.10
SNOWFALL (IN)
TODAY 0.0 T 1977 0.0 0.0 0.0
2020
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE MAR 1 1.9 10.6 -8.7 T
SINCE JUL 1 62.8 49.2 13.6 28.1
DEGREE DAYS
HEATING
TODAY 17 9 8 13
MONTH TO DATE 77 91 -14 56
SINCE MAR 1 1292 1415 -123 1175
SINCE JUL 1 5419 5353 66 4934
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 0 1 -1 6
SINCE MAR 1 3 5 -2 12
SINCE JAN 1 3 5 -2 12
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 5.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 PM
LOWEST 54 1200 AM
AVERAGE 74
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 94 1896
1979
MINIMUM TEMPERATURE (F) 49 34 1900
1902
2020
SUNRISE AND SUNSET
MAY 9 2026...........SUNRISE 529 AM EDT SUNSET 753 PM EDT
MAY 10 2026...........SUNRISE 528 AM EDT SUNSET 754 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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