473
CDUS41 KBOX 100602
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
202 AM EDT SUN MAY 10 2026
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 9 2026
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)
YESTERDAY
MAXIMUM 55 817 PM 95 1979 65 -10 56
MINIMUM 42 322 AM 35 1977 48 -6 48
AVERAGE 49 56 -7 52
PRECIPITATION (IN)
YESTERDAY 0.35 2.50 1954 0.10 0.25 1.09
MONTH TO DATE 0.58 0.95 -0.37 2.56
SINCE MAR 1 5.69 8.75 -3.06 9.79
SINCE JAN 1 8.98 15.35 -6.37 15.10
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 16 9 7 13
MONTH TO DATE 76 91 -15 56
SINCE MAR 1 1291 1415 -124 1175
SINCE JUL 1 5418 5353 65 4934
COOLING
YESTERDAY 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)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SE (120)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 6.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 500 PM
LOWEST 54 1200 AM
AVERAGE 76
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 94 1896
1979
MINIMUM TEMPERATURE (F) 49 34 1900
1902
2020
SUNRISE AND SUNSET
MAY 10 2026...........SUNRISE 528 AM EDT SUNSET 754 PM EDT
MAY 11 2026...........SUNRISE 527 AM EDT SUNSET 755 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page