754
CXUS51 KBOX 010702
CLMBOS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
202 AM EST MON JAN 01 2024

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

...THE BOSTON MA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             76   12/07/1998
 LOW             -17   12/29/1933
HIGHEST           64   12/11                          63
LOWEST            21   12/07                          11
                       12/22
AVG. MAXIMUM    47.1               42.2     4.9
AVG. MINIMUM    34.5               29.2     5.3
MEAN            40.8               35.7     5.1
DAYS MAX >= 90     0                0.0     0.0
DAYS MAX <= 32     0                4.2    -4.2
DAYS MIN <= 32    11               19.8    -8.8
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        9.74   1969
 MINIMUM        0.66   1935
TOTALS          5.98               4.30    1.68
DAILY AVG.      0.19               0.14    0.05
DAYS >= .01       12               11.9     0.1
DAYS >= .10        7                7.2    -0.2
DAYS >= .50        5                3.1     1.9
DAYS >= 1.00       2                1.0     1.0
GREATEST
 24 HR. TOTAL   2.27   12/10 TO 12/11

SNOWFALL (INCHES)
RECORDS
 TOTAL          27.9   1970
TOTALS           0.2                9.0    -8.8
 LIQUID EQUIV   0.00
SINCE 7/1        0.2                9.9    -9.7
DAYS >= TRACE      1                4.2    -3.2
DAYS >= 1.0        0                1.9    -1.9
GREATEST
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL    743                908    -165
 SINCE 7/1      1647               1923    -276
COOLING TOTAL      0                  0       0
 SINCE 1/1       860                800      60
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.7
RESULTANT WIND SPEED/DIRECTION   3/280
HIGHEST WIND SPEED/DIRECTION    53/160    DATE  12/18
HIGHEST GUST SPEED/DIRECTION    68/160    DATE  12/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.66
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY         16

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       6
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      16     FOG W/VIS <= 1/4 MILE      5
HAZE                      2

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

$$