National Weather Service Text Product
AFOS product CLIBOS
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIBOS
Product Timestamp: 2025-07-21 06:43 UTC
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807
CDUS41 KBOX 210643
CLIBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
243 AM EDT MON JUL 21 2025
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR JULY 20 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 87 349 PM 99 1991 83 4 87
MINIMUM 70 1159 PM 54 1879 67 3 65
1890
AVERAGE 79 74 5 76
PRECIPITATION (IN)
YESTERDAY 0.20 1.78 1982 0.11 0.09 0.00
MONTH TO DATE 2.11 2.08 0.03 1.13
SINCE JUN 1 3.43 5.97 -2.54 5.17
SINCE JAN 1 23.22 23.62 -0.40 30.18
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 0 0 0 0
SINCE JUN 1 44 50 -6 7
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 14 10 4 11
MONTH TO DATE 234 181 53 257
SINCE JUN 1 424 319 105 447
SINCE JAN 1 453 352 101 493
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (210)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 11.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 700 PM
LOWEST 61 300 PM
AVERAGE 76
..........................................................
THE BOSTON MA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 102 1977
MINIMUM TEMPERATURE (F) 67 52 1890
SUNRISE AND SUNSET
JULY 21 2025..........SUNRISE 526 AM EDT SUNSET 814 PM EDT
JULY 22 2025..........SUNRISE 527 AM EDT SUNSET 814 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$