Climatological Report (Monthly)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
000 CXUS51 KBOX 010700 CLMBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 300 AM EDT SUN OCT 01 2023 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1872 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 102 09/07/1881 LOW 34 09/29/1914 09/26/1879 HIGHEST 93 09/07 84 LOWEST 49 09/27 48 AVG. MAXIMUM 73.3 73.1 0.2 AVG. MINIMUM 61.6 58.2 3.4 MEAN 67.4 65.6 1.8 DAYS MAX >= 90 1 0.8 0.2 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 10.94 1933 MINIMUM 0.21 1914 TOTALS 3.75 3.56 0.19 DAILY AVG. 0.13 0.12 0.01 DAYS >= .01 12 9.0 3.0 DAYS >= .10 8 6.0 2.0 DAYS >= .50 2 2.1 -0.1 DAYS >= 1.00 1 0.8 0.2 GREATEST 24 HR. TOTAL 1.52 09/18 TO 09/18 SNOWFALL (INCHES) RECORDS TOTAL 0.0 MM 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 56 71 -15 SINCE 7/1 56 80 -24 COOLING TOTAL 136 91 45 SINCE 1/1 834 791 43 .............................................................. WIND (MPH) AVERAGE WIND SPEED 9.6 RESULTANT WIND SPEED/DIRECTION 2/020 HIGHEST WIND SPEED/DIRECTION 32/300 DATE 09/16 HIGHEST GUST SPEED/DIRECTION 42/300 DATE 09/16 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.62 NUMBER OF DAYS FAIR 8 NUMBER OF DAYS PC 8 NUMBER OF DAYS CLOUDY 14 AVERAGE RH (PERCENT) 75 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 MIXED PRECIP 0 HEAVY RAIN 6 RAIN 6 LIGHT RAIN 14 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 11 FOG W/VIS <= 1/4 MILE 2 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$