Climatological Report (Seasonal)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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000 CXUS51 KBOX 071235 CLSBOS BOSCLSBOS 000 TTAA00 BOX 070452 CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 1251 AM EDT TUE SEP 07 2021 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR THE SEASON, FROM 6/1/2021 TO 8/31/2021... 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 104 07/04/1911 LOW 41 06/01/1945 HIGHEST 100 06/30 95 LOWEST 54 06/01 47 AVG. MAXIMUM 82.1 79.6 2.5 AVG. MINIMUM 66.9 63.6 3.3 MEAN 74.5 71.6 2.9 DAYS MAX >= 90 22 12.6 9.4 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 24.89 1955 MINIMUM 3.92 2016 TOTALS 19.64 10.39 9.25 DAILY AVG. 0.21 0.11 0.10 DAYS >= .01 40 29.3 10.7 DAYS >= .10 25 18.2 6.8 DAYS >= .50 14 6.8 7.2 DAYS >= 1.00 9 2.5 6.5 GREATEST 24 HR. TOTAL 2.04 07/09 TO 07/09 SNOWFALL (INCHES) RECORDS TOTAL T 2020 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 12 58 -46 SINCE 7/1 9 4 5 COOLING TOTAL 912 668 244 SINCE 1/1 976 700 276 FREEZE DATES RECORD EARLIEST 10/05/1881 LATEST 05/03/1882 EARLIEST MM LATEST 04/03 .............................................................. WIND (MPH) AVERAGE WIND SPEED 9.3 RESULTANT WIND SPEED/DIRECTION 2/220 HIGHEST WIND SPEED/DIRECTION 40/300 DATE 06/30 HIGHEST GUST SPEED/DIRECTION 61/300 DATE 07/27 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.68 NUMBER OF DAYS FAIR 9 NUMBER OF DAYS PC 43 NUMBER OF DAYS CLOUDY 40 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 20 MIXED PRECIP 0 HEAVY RAIN 20 RAIN 22 LIGHT RAIN 52 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 41 FOG W/VIS <= 1/4 MILE 8 HAZE 19 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$