Climatological Report (Monthly) Issued by NWS Boston, MA
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
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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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