Climatological Report (Seasonal)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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CXUS51 KBOX 010702
CLSBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
258 AM EDT TUE JUN 01 2021
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2021 TO 5/31/2021...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2021
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 97 05/26/1880
LOW -8 03/06/1872
HIGHEST 92 05/26 83
LOWEST 13 03/02 19
AVG. MAXIMUM 60.0 56.1 3.9
AVG. MINIMUM 42.8 40.7 2.1
MEAN 51.4 48.4 3.0
DAYS MAX >= 90 2 0.7 1.3
DAYS MAX <= 32 2 2.2 -0.2
DAYS MIN <= 32 17 18.2 -1.2
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 22.10 1953
MINIMUM 3.50 1915
TOTALS 11.25 11.05 0.20
DAILY AVG. 0.12 0.12 -0.00
DAYS >= .01 29 35.0 -6.0
DAYS >= .10 21 20.4 0.6
DAYS >= .50 10 6.8 3.2
DAYS >= 1.00 3 2.3 0.7
GREATEST
24 HR. TOTAL 1.60 04/16 TO 04/16
SNOWFALL (INCHES)
RECORDS
MAXIMUM 41.1 1993
MINIMUM T MULTI-YEARS
TOTALS 0.2 10.6 -10.4
LIQUID EQUIV 0.00
SINCE 7/1 38.6 49.2 -10.6
DAYS >= TRACE 4 5.2 -1.2
DAYS >= 1.0 0 2.5 -2.5
GREATEST
24 HR TOTAL 0.1 03/14 TO 03/14
04/16 TO 04/16
DEGREE DAYS
HEATING TOTAL 1291 1558 -267
SINCE 7/1 5068 5494 -426
COOLING TOTAL 64 34 30
SINCE 1/1 64 33 31
FREEZE DATES
RECORD
EARLIEST 10/05/1881
LATEST 05/03/1882
EARLIEST 10/30
LATEST 04/18
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 11.8
RESULTANT WIND SPEED/DIRECTION 4/290
HIGHEST WIND SPEED/DIRECTION 44/270 DATE 03/01
HIGHEST GUST SPEED/DIRECTION 53/280 DATE 03/01
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.59
NUMBER OF DAYS FAIR 21
NUMBER OF DAYS PC 39
NUMBER OF DAYS CLOUDY 32
AVERAGE RH (PERCENT) 55
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 MIXED PRECIP 0
HEAVY RAIN 9 RAIN 15
LIGHT RAIN 38 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 3 SLEET 2
FOG 26 FOG W/VIS <= 1/4 MILE 1
HAZE 5
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
BL