Climatological Report (Monthly)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
000 CXUS51 KBOX 011145 CLMBOS CLIMATE REPORT NATIONAL WEATHER SERVICE BOSTON/NORTON MA 745 AM EDT THU JUN 01 2023 ................................... ...THE BOSTON MA CLIMATE SUMMARY FOR THE MONTH OF MAY 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 97 05/26/1880 LOW 31 05/03/1882 HIGHEST 86 05/28 89 LOWEST 42 05/18 41 AVG. MAXIMUM 69.3 66.5 2.8 AVG. MINIMUM 51.0 50.3 0.7 MEAN 60.1 58.4 1.7 DAYS MAX >= 90 0 0.6 -0.6 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 13.38 1954 MINIMUM 0.25 1944 TOTALS 2.25 3.25 -1.00 DAILY AVG. 0.07 0.10 -0.03 DAYS >= .01 9 11.8 -2.8 DAYS >= .10 3 6.8 -3.8 DAYS >= .50 1 2.0 -1.0 DAYS >= 1.00 1 0.5 0.5 GREATEST 24 HR. TOTAL 1.94 05/20 TO 05/21 SNOWFALL (INCHES) RECORDS MAXIMUM 0.9 1938 MINIMUM 0.0 MULTI-YEARS TOTALS 0.0 0.0 0.0 LIQUID EQUIV 0.00 SINCE 7/1 12.4 49.2 -36.8 DAYS >= TRACE 0 0.0 0.0 DAYS >= 1.0 0 0.0 0.0 GREATEST 24 HR TOTAL MM DEGREE DAYS HEATING TOTAL 183 234 -51 SINCE 7/1 4667 5494 -827 COOLING TOTAL 39 29 10 SINCE 1/1 44 33 11 .............................................................. WIND (MPH) AVERAGE WIND SPEED 11.3 RESULTANT WIND SPEED/DIRECTION 2/270 HIGHEST WIND SPEED/DIRECTION 31/350 DATE 05/11 HIGHEST GUST SPEED/DIRECTION 41/240 DATE 05/01 41/330 05/11 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.45 NUMBER OF DAYS FAIR 12 NUMBER OF DAYS PC 15 NUMBER OF DAYS CLOUDY 4 AVERAGE RH (PERCENT) 56 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 3 RAIN 3 LIGHT RAIN 11 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 8 FOG W/VIS <= 1/4 MILE 0 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$