Climatological Report (Seasonal)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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678 CXUS51 KBOX 011253 CLSBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 709 AM EST TUE DEC 1 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 DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 102 LOW -2 HIGHEST 85 09/04 MM MM LOWEST 22 11/19 MM MM 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 24 HR TOTAL 12.0 11/27/1898 TO 11/27/1898 SNOW DEPTH 16 11/30/1898 TOTALS 4.3 1.3 3.0 LIQUID EQUIV 0.43 MM MM SINCE 7/1 4.3 1.3 3.0 LIQUID 7/1 0.43 MM MM SNOWDEPTH AVG. MM MM MM MM DAYS >= TRACE 3 0.9 2.1 DAYS >= 1.0 1 0.4 0.6 GREATEST SNOW DEPTH 24 HR TOTAL 4.3 10/30 TO 10/30 DEGREE_DAYS HEATING TOTAL 885 1041 -156 SINCE 7/1 887 1055 -168 COOLING TOTAL 97 88 9 SINCE 1/1 924 747 177 FREEZE DATES RECORD EARLIEST 10/05/1881 LATEST 05/03/1882 EARLIEST 11/06 LATEST 04/09 ................................................................. WIND (MPH) AVERAGE WIND SPEED 10.2 RESULTANT WIND SPEED/DIRECTION 3/248 HIGHEST WIND SPEED/DIRECTION 44/160 DATE 11/30 HIGHEST GUST SPEED/DIRECTION 65/270 DATE 10/07 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.60 NUMBER OF DAYS FAIR 24 NUMBER OF DAYS PC 38 NUMBER OF DAYS CLOUDY 29 AVERAGE RH (PERCENT) 68 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$