818
CDUS41 KBOX 112140
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
540 PM EDT MON MAY 11 2026
...............................
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 11 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 62 237 PM 91 1993 65 -3 70
MINIMUM 54 806 AM 33 1900 49 5 53
AVERAGE 58 57 1 62
PRECIPITATION (IN)
TODAY T 1.42 1989 0.10 -0.10 0.00
MONTH TO DATE 0.58 1.15 -0.57 3.00
SINCE MAR 1 5.69 8.95 -3.26 10.23
SINCE JAN 1 8.98 15.55 -6.57 15.54
SNOWFALL (IN)
TODAY 0.0 T 1945 0.0 0.0 0.0
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 7 8 -1 3
MONTH TO DATE 85 108 -23 68
SINCE MAR 1 1300 1432 -132 1187
SINCE JUL 1 5427 5370 57 4946
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 0 3 -3 6
SINCE MAR 1 3 7 -4 12
SINCE JAN 1 3 7 -4 12
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 10.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 55 300 PM
LOWEST 24 100 PM
AVERAGE 40
......................................................
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 88 1991
2001
MINIMUM TEMPERATURE (F) 49 33 1907
SUNRISE AND SUNSET
MAY 11 2026...........SUNRISE 527 AM EDT SUNSET 755 PM EDT
MAY 12 2026...........SUNRISE 526 AM EDT SUNSET 756 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