977
CXUS51 KBOX 011509
CLMBOS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1109 AM EDT TUE OCT 01 2024

...................................

...THE BOSTON MA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH            102   09/07/1881
 LOW              34   09/29/1914
                       09/26/1879
HIGHEST           83   09/01                          93
                       09/13
LOWEST            53   09/24                          49
AVG. MAXIMUM    72.7               73.1    -0.4
AVG. MINIMUM    59.0               58.2     0.8
MEAN            65.8               65.6     0.3
DAYS MAX >= 90     0                0.8    -0.8
DAYS MAX <= 32     0                0.0     0.0
DAYS MIN <= 32     0                0.0     0.0
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.94   1933
 MINIMUM        0.21   1914
TOTALS          1.33               3.56   -2.23
DAILY AVG.      0.04               0.12   -0.08
DAYS >= .01        5                9.0    -4.0
DAYS >= .10        2                6.0    -4.0
DAYS >= .50        1                2.1    -1.1
DAYS >= 1.00       0                0.8    -0.8
GREATEST
 24 HR. TOTAL   0.90   09/21 TO 09/21
                       09/21 TO 09/22

SNOWFALL (INCHES)
RECORDS
 TOTAL           0.0   MM
TOTALS           0.0                0.0     0.0
 LIQUID EQUIV   0.00
SINCE 7/1        0.0                0.0     0.0
DAYS >= TRACE      0                0.0     0.0
DAYS >= 1.0        0                0.0     0.0
GREATEST
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL     35                 71     -36
 SINCE 7/1        37                 80     -43
COOLING TOTAL     67                 91     -24
 SINCE 1/1       877                791      86
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.4
RESULTANT WIND SPEED/DIRECTION   2/050
HIGHEST WIND SPEED/DIRECTION    28/030    DATE  09/20
HIGHEST GUST SPEED/DIRECTION    35/030    DATE  09/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.56
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       1
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      2
HAZE                      1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$