Climatological Report (Annual)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
723 CXUS51 KBOX 180012 CLABDL CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 713 PM EST SUN JAN 17 2021 ................................... ...THE HARTFORD CT CLIMATE SUMMARY FOR THE YEAR OF 2020... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1904 TO 2021 WEATHER OBSERVED NORMAL DEPART VALUE DATE(S) VALUE FROM NORMAL ................................................ TEMPERATURE (F) RECORD HIGH 103 07/22/2011 LOW -26 01/22/1961 HIGHEST 99 07/19 LOWEST 1 12/19 AVG. MAXIMUM 63.6 60.8 2.8 AVG. MINIMUM 42.5 40.4 2.1 MEAN 53.1 50.6 2.5 DAYS MAX >= 90 39 14.6 24.4 DAYS MAX <= 32 12 27.9 -15.9 DAYS MIN <= 32 117 124.9 -7.9 DAYS MIN <= 0 0 3.4 -3.4 PRECIPITATION (INCHES) RECORD MAXIMUM 69.23 2011 MINIMUM 29.45 1965 TOTALS 39.57 45.85 -6.28 DAILY AVG. 0.11 0.13 -0.02 DAYS >= .01 115 130.0 -15.0 DAYS >= .10 74 78.4 -4.4 DAYS >= .50 26 30.4 -4.4 DAYS >= 1.00 10 11.6 -1.6 GREATEST 24 HR. TOTAL 2.12 12/25 TO 12/25 SNOWFALL (INCHES) RECORDS MAXIMUM 102.6 1945 MINIMUM 14.4 1913 SNOW DEPTH 45 12/31/1945 TOTALS 25.8 40.5 -14.7 SINCE 7/1 15.3 9.4 5.9 SNOWDEPTH AVG. 0 DAYS >= TRACE 31 20.1 10.9 DAYS >= 1.0 7 10.1 -3.1 GREATEST SNOW DEPTH 10 12/17 12/18 24 HR TOTAL 7.8 12/17 TO 12/17 DEGREE DAYS HEATING TOTAL 5339 5999 -660 SINCE 7/1 1957 2243 -286 COOLING TOTAL 1075 756 319 SINCE 1/1 1075 756 319 ................................................ WIND (MPH) AVERAGE WIND SPEED 7.8 RESULTANT WIND SPEED/DIRECTION 2/270 HIGHEST WIND SPEED/DIRECTION 46/310 DATE 10/07 HIGHEST GUST SPEED/DIRECTION 65/320 DATE 10/07 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.62 NUMBER OF DAYS FAIR 46 NUMBER OF DAYS PC 191 NUMBER OF DAYS CLOUDY 129 AVERAGE RH (PERCENT) 65 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 26 MIXED PRECIP 0 HEAVY RAIN 29 RAIN 44 LIGHT RAIN 147 FREEZING RAIN 1 LT FREEZING RAIN 3 HAIL 1 HEAVY SNOW 2 SNOW 11 LIGHT SNOW 29 SLEET 4 FOG 158 FOG W/VIS <= 1/4 MILE 21 HAZE 22 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$