Excessive Heat in Massachusetts

Events

35

Deaths

0

Injuries

3

Damage

None recorded

• Excessive Heat in Massachusetts, June 22 to 25, 20253 injured · 1 eventVery hot and humid weather occurred in southern New England over the course of 4 days, peaking on Tuesday June 24th when heat index values reached 105 to 110. All four climate sites easily set daily records, and Providence and Boston set all time June high temperature records.
• Excessive Heat and High Wind in Massachusetts, December 17, 200068 kt wind · 24 eventsA rapidly strengthening low pressure system west of New England brought a period of damaging southerly winds to much of the Bay State, as lines of showers passed through southern New England.
• Excessive Heat and Heat in Massachusetts, July 6 to 7, 201020 eventsA strong ridge built into Southern New England resulting in temperatures nearing 100 with high humidity. Heat index values ranged from 100 to 106 for most of Southern New England on the 6th and again on the 7th in a more limited area, generally the Connecticut River Valley.
• Excessive Heat in Massachusetts, July 22, 20117 eventsA strong upper level ridge brought very hot temperatures to Southern New England. A moist southwest low level flow increased humidity levels such that heat index values rose above 105 degrees for a period of a few hours.
• Excessive Heat in Massachusetts, July 3, 20184 eventsAn area of high pressure over the Eastern USA continued to bring hot and very humid air to Southern New England on July 3rd. Heat Index values of 105 to 109 occurred in parts of Eastern Massachusetts. Heat Index values in much of the state reached 95 to 104.
• Excessive Heat in Massachusetts, May 3, 20013 eventsThe high temperature of 87 degrees at Worcester Regional Airport tied the previous record high for the date, which was set in 1942. At Logan International Airport in Boston, the high temperature of 92 degrees broke the previous record high of 85 degrees, which was set in 1942.
• Excessive Heat in Massachusetts, July 1, 20183 eventsAn area of high pressure over the Eastern USA brought hot and very humid air to Southern New England on July 1st. Heat Index values of 105 to 109 occurred in parts of Eastern and Northwestern Massachusetts. Heat Index values in much of the state reached 95 to 104.
• Excessive Heat and Hail in Massachusetts, May 9, 20001 in hail · 2 eventsAn isolated severe thunderstorm produced quarter size hail in Granville and Southwick. At the Blue Hill Observatory in Milton, the high temperature of 93 degrees broke the previous record high for the date of 92 degrees, set in 1979.
• Excessive Heat in Massachusetts, May 12, 20012 eventsThe high temperature reached 88 degrees at Logan International Airport in Boston, which tied the record high for the date set in 1991.
• Excessive Heat in Massachusetts, July 1 to 4, 20182 eventsA hot and humid airmass brought excessively high heat indices to western Massachusetts during the beginning of July. Temperatures soared as high as the mid to upper 90s on July 1st, the hottest day of the stretch.
• Excessive Heat in Massachusetts, March 8 to 9, 20001 eventThe season's first Bermuda type high pumped unseasonably warm air across the Berkshires on March 8 and March 9. Temperatures climbed through the 60s to near 70 both afternoons.
• Excessive Heat in Massachusetts, May 8, 20001 eventThe high temperature at the Blue Hill Observatory in Milton reached 89 degrees, which broke the previous record high for the date of 87 degrees, set in 1964.
• Excessive Heat in Massachusetts, October 14, 20001 eventThe high temperature of 79 degrees at the Blue Hill Observatory in Milton, recorded around 2 pm, broke the previous record high for the date which was 78 degrees set in 1930 and 1954.
• Excessive Heat in Massachusetts, April 24, 20011 eventThe high temperature of 80 degrees at Worcester Regional Airport (which occurred around 1 pm) broke the previous record high for the date, which was 79 degrees set in 1942.
• Excessive Heat in Massachusetts, May 2, 20011 eventThe high temperature of 87 degrees at Worcester Regional Airport broke the previous record high for the date, which was 86 degrees, set in 1930.
• Excessive Heat in Massachusetts, May 4, 20011 eventThe high temperature reached 90 degrees at Logan International Airport in Boston, setting a record high temperature for the date. The previous record was 88 degrees, a long-standing record set over 100 years ago in 1880.
• Excessive Heat in Massachusetts, July 21, 20111 eventA strong upper level ridge brought very hot temperatures to Southern New England. A moist southwest low level flow increased humidity levels such that heat index values rose above 105 degrees for a period of a few hours.
• Excessive Heat in Massachusetts, August 28, 20181 eventHigh pressure along the Eastern Seaboard brought very warm and very humid air into Southern New England. Heat indices reached the lower 100s most places and mid 100s at one location.

Excessive Heat everywhereEvery kind of event in Massachusetts

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.