Climatological Report (Seasonal)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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279 CXUS51 KBOX 080557 CLSBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 1251 AM EST TUE DEC 08 2020 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR THE SEASON, FROM 9/1/2020 TO 11/30/2020... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1872 TO 2020 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 102 09/07/1881 LOW -2 11/30/1875 HIGHEST 85 09/04 92 LOWEST 22 11/19 21 AVG. MAXIMUM 64.1 61.8 2.3 AVG. MINIMUM 48.0 47.3 0.7 MEAN 56.1 54.5 1.6 DAYS MAX >= 90 0 0.5 -0.5 DAYS MAX <= 32 0 0.3 -0.3 DAYS MIN <= 32 7 5.7 1.3 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) RECORD MAXIMUM 19.17 1878 MINIMUM 3.36 1946 TOTALS 10.15 11.37 -1.22 DAILY AVG. 0.11 0.12 -0.01 DAYS >= .01 24 28.6 -4.6 DAYS >= .10 15 18.1 -3.1 DAYS >= .50 7 7.7 -0.7 DAYS >= 1.00 3 2.9 0.1 GREATEST 24 HR. TOTAL 1.81 11/23 TO 11/23 SNOWFALL (INCHES) RECORDS TOTAL 17.8 1898 TOTALS 4.3 1.3 3.0 LIQUID EQUIV 0.40 SINCE 7/1 4.3 1.3 3.0 DAYS >= TRACE 3 0.9 2.1 DAYS >= 1.0 1 0.4 0.6 GREATEST 24 HR TOTAL 4.3 10/30 TO 10/30 DEGREE DAYS HEATING TOTAL 885 1041 -156 SINCE 7/1 887 1057 -170 COOLING TOTAL 97 88 9 SINCE 1/1 924 747 177 FREEZE DATES RECORD EARLIEST 10/05/1881 LATEST 05/03/1882 EARLIEST 10/30 LATEST 04/18 .............................................................. WIND (MPH) AVERAGE WIND SPEED 10.2 RESULTANT WIND SPEED/DIRECTION 3/250 HIGHEST WIND SPEED/DIRECTION 44/160 DATE 09/30 HIGHEST GUST SPEED/DIRECTION 65/270 DATE 10/07 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.59 NUMBER OF DAYS FAIR 24 NUMBER OF DAYS PC 38 NUMBER OF DAYS CLOUDY 29 AVERAGE RH (PERCENT) 69 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 2 MIXED PRECIP 0 HEAVY RAIN 12 RAIN 14 LIGHT RAIN 33 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 1 HEAVY SNOW 0 SNOW 1 LIGHT SNOW 3 SLEET 0 FOG 35 FOG W/VIS <= 1/4 MILE 6 HAZE 5 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$