


Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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531 CDUS41 KBOX 300920 CLIBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 520 AM EDT SAT AUG 30 2025 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR AUGUST 29 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 73 1005 AM 98 2018 79 -6 69 MINIMUM 63 806 AM 47 1908 63 0 62 1986 AVERAGE 68 71 -3 66 PRECIPITATION (IN) YESTERDAY 0.07 1.69 1962 0.10 -0.03 0.00 MONTH TO DATE 0.83 3.04 -2.21 3.70 SINCE JUN 1 5.16 10.20 -5.04 9.13 SINCE JAN 1 24.95 27.85 -2.90 34.14 SNOWFALL (IN) YESTERDAY 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 JUN 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 DEGREE DAYS HEATING YESTERDAY 0 0 0 0 MONTH TO DATE 7 0 7 1 SINCE JUN 1 51 54 -3 8 SINCE JUL 1 7 4 3 1 COOLING YESTERDAY 3 6 -3 1 MONTH TO DATE 183 233 -50 220 SINCE JUN 1 724 655 69 758 SINCE JAN 1 753 688 65 804 ................................................................... WIND (MPH) RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (190) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (180) HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (290) AVERAGE WIND SPEED 10.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 90 300 AM LOWEST 61 100 PM AVERAGE 76 .......................................................... THE BOSTON MA CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 99 1973 MINIMUM TEMPERATURE (F) 63 48 1965 SUNRISE AND SUNSET AUGUST 30 2025........SUNRISE 607 AM EDT SUNSET 721 PM EDT AUGUST 31 2025........SUNRISE 609 AM EDT SUNSET 719 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$