Climatological Report (Monthly)
Issued by NWS Boston, MA

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000
CXUS51 KBOX 011219
CLMBOS

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
819 AM EDT MON MAY 01 2023

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

...THE BOSTON MA CLIMATE SUMMARY FOR THE MONTH OF APRIL 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             94   04/18/1976
 LOW              11   04/05/1874
HIGHEST           88   04/13                          73
LOWEST            31   04/03                          35
AVG. MAXIMUM    58.0               56.4     1.6
AVG. MINIMUM    43.6               40.8     2.8
MEAN            50.8               48.6     2.2
DAYS MAX >= 90     0                0.1    -0.1
DAYS MAX <= 32     0                0.1    -0.1
DAYS MIN <= 32     1                2.1    -1.1
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        9.57   2004
 MINIMUM        0.83   1999
TOTALS          3.10               3.63   -0.53
DAILY AVG.      0.10               0.12   -0.02
DAYS >= .01        8               11.6    -3.6
DAYS >= .10        4                6.7    -2.7
DAYS >= .50        2                2.3    -0.3
DAYS >= 1.00       1                0.7     0.3
GREATEST
 24 HR. TOTAL   1.81   04/30 TO 04/30

SNOWFALL (INCHES)
RECORDS
 TOTAL          22.4   1997
TOTALS           0.0                1.6    -1.6
 LIQUID EQUIV   0.00
SINCE 7/1       12.4               49.2   -36.8
DAYS >= TRACE      0                0.8    -0.8
DAYS >= 1.0        0                0.3    -0.3
GREATEST
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL    424                496     -72
 SINCE 7/1      4484               5262    -778
COOLING TOTAL      5                  4       1
 SINCE 1/1         5                  4       1
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              11.1
RESULTANT WIND SPEED/DIRECTION   2/060
HIGHEST WIND SPEED/DIRECTION    32/110    DATE  04/30
HIGHEST GUST SPEED/DIRECTION    43/110    DATE  04/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.69
NUMBER OF DAYS FAIR            3
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY         16

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       3
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      3
HAZE                      1

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

$$


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