National Weather Service Text Product
AFOS product CLIBOS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIBOS
Product Timestamp: 2025-05-13 05:40 UTC
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872
CDUS41 KBOX 130540
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
140 AM EDT TUE MAY 13 2025
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR MAY 12 2025...
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)
YESTERDAY
MAXIMUM 75 359 PM 88 1991 65 10 57
2001
MINIMUM 46 256 AM 33 1907 49 -3 44
AVERAGE 61 57 4 51
PRECIPITATION (IN)
YESTERDAY 0.00 1.42 1888 0.09 -0.09 0.00
MONTH TO DATE 3.00 1.24 1.76 1.33
SINCE MAR 1 10.23 9.04 1.19 13.23
SINCE JAN 1 15.54 15.64 -0.10 21.52
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0
2001
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
YESTERDAY 4 8 -4 14
MONTH TO DATE 72 116 -44 138
SINCE MAR 1 1191 1440 -249 1319
SINCE JUL 1 4950 5378 -428 4804
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 6 4 2 0
SINCE MAR 1 12 8 4 0
SINCE JAN 1 12 8 4 0
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 12.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 56 600 AM
LOWEST 24 300 PM
AVERAGE 40
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 87 1947
MINIMUM TEMPERATURE (F) 50 37 2020
SUNRISE AND SUNSET
MAY 13 2025...........SUNRISE 524 AM EDT SUNSET 757 PM EDT
MAY 14 2025...........SUNRISE 523 AM EDT SUNSET 758 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$