Heat in Vermont
Every heat event the National Weather Service has filed in Vermont, year by year, with the most significant episodes. Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.
The most significant on the map
The most significant heat episodes in Vermont.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 162
- Deaths
- 5
- Injuries
- 0
- Damage
- $9.7 million
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Heat in Vermont, July 1 to 6, 2018A dangerous heat wave, one of which that likely hasn't impacted the North Country in decades occurred between June 30th and July 5th. High temperatures exceeded 90 degrees for at least 5 of the six days in many locations were above 85 degrees for 7 days.
- Heat in Vermont, July 21, 2011A portion of the heat ridge that brought record setting heat across much of the eastern two-thirds of the lower 48 states, delivered record heat as well as oppressive dew points to portions of Vermont on July 21st.
- Heat in Vermont, March 17 to 22, 2012The Winter of 2011-12 was largely abnormal with temperatures that averaged 4-5 degrees above normal and snowfall was 40-60 percent of normal. This combination accounted for snow packs across the region to be largely below normal or even non-existent by mid-March.
- Heat and Damaging Winds in Vermont, May 27, 2020Record May Heat produced the instability and the mountains of the Green Mountains produced the lift to develop thunderstorms in the afternoon that very slowly moved south to north along the mountain ridges.
- Heat in Vermont, June 23 to 24, 2025An upper level area of high pressure, this time of the year called a heat dome, was centered across the Appalachians/Mid-Atlantic states ridging across the northeast including NY and New England.
- Heat in Vermont, August 1, 2006A "heat ridge" moved into Vermont during the early morning hours of the 1st. This "heat ridge" was part of a strong, upper level area of high pressure that brought record heat to a large majority of the country since mid-July.In Vermont on the 1st, afternoon temperatures soared…
- Heat and Damaging Winds in Vermont, June 18, 2018A hot and humid air mass was in place across the region with temperatures in the 90s and dew points in the 60s and 70s. This resulted in heat index values reaching 100 to 110 degrees during the afternoon hours in valley areas.
- Heat in Vermont, June 18 to 23, 2020The 2nd longest heatwave in modern history (1900-onward) occurred across portions of NY and VT from June 18th through June 23rd. Temperatures exceeded 90 degrees for up to 6 consecutive days in portions of the Champlain and Connecticut River valleys.
- Heat in Vermont, August 2, 2006The "heat ridge" that delivered some of the warmest combined heat and humidity in years to all of Vermont on the 1st, shifted across central and southern Vermont on the 2nd, as a cold front drifted into northern Vermont.
- Excessive Heat and Heat in Vermont, June 23 to 25, 2025A dome of high pressure brought a period of very hot and humid conditions across southern Vermont from June 23-25, 2025. Peak heat index values (or feels-like temperatures) were between 95 and 104 degrees Fahrenheit in many locations.
- Heat in Vermont, July 7 to 10, 2020Excessive heat returned to the Champlain Valley on what has already been a very warm early summer.
- Heat in Vermont, August 28 to 29, 2018Hazy, hot and humid conditions enveloped the region from Tuesday, August 28th through Wednesday, August 29th. This prompted a heat advisory to be issued both days for all locations below 1000 feet. Maximum heat index values ranged from the low 90's to the low 100's.
- Heat in Vermont, August 4 to 8, 2022A dome of high pressure brought a stretch of hot and humid weather resulting in multiple days of heat indices between 95F and 104F degrees across southern Vermont between August 4-8, 2022.
- Excessive Heat and Heat in Vermont, July 1 to 5, 2018A hot and humid airmass brought excessively high heat indices to southern Vermont during the beginning of July through the Independence Day holiday. Temperatures soared as high as the mid-90s on July 1st, the hottest day of the stretch.
- Heat in Vermont, July 19 to 21, 2019A heat wave gripped southern Vermont from July 19th through the 21st. Temperatures soared to near 90 with dewpoints in the low to mid-70s. This resulted in heat index values in the 95 to 100 range in the warmest valleys. Saturday, July 20th was the hottest day for most areas.
- Heat in Vermont, July 20 to 24, 2022A period of hot and humid weather led to heat indices peaking in the 95 to 102 degree range across portions of southern Vermont during the period of July 20-24, 2022.
- Heat in Vermont, December 2 to 7, 1998The beginning of December was a period of record warmth across Southern Vermont. An area of high pressure off the Mid-Atlantic coast, produced a persistent south to southwesterly flow. From December 2 through December 7, temperatures averaged 10 to 15 degrees above normal.
- Heat in Vermont, March 27 to 31, 1998The end of March was a period of record heat across southern Vermont as strong high pressure off the Mid-Atlantic coast produced a persistent southerly flow. From March 27 to March 31, high temperatures ranged from the middle 70s to upper 80s.
- Heat in Vermont, July 4 to 6, 1999An intense Bermuda high became established over the mid Atlantic region during the Independence Day weekend. This high pumped heat along with very high humidity across extreme southern Vermont, especially on July 5 and 6.
- Heat in Vermont, June 7, 1999The season's second Bermuda High brought the first 90 degree weather of 1999 on June 7 to portions of Southern Vermont. At the Albany International Airport it was the first official 90 degree temperature since August 16, 1997.
- Heat in Vermont, July 21, 2011Bermuda high pressure dominated the region with broad southwest flow aloft. This flow ushered in hot and humid air. Temperatures across much of southern Vermont, especially the lower terrain, warmed into 90s Thursday afternoon, July 21st.
- Heat in Vermont, September 3 to 6, 2018A late-season heat wave impacted southern Vermont during the first week of September.
- Heat in Vermont, August 10 to 11, 2020A hot and humid airmass was in place across the region. Heat indices reached the 95 to 100 degree range during the afternoons of Monday, August 10th and Tuesday, August 11th.
- Heat in Vermont, July 19 to 20, 2020Temperatures soared into the 90s in the lower elevations of southern Vermont on July 19th. The combination of the heat and a humid airmass brought heat indices into the 95 to 105 degree range.
- Heat in Vermont, July 27, 2020Another hot and humid airmass impacted southern Vermont on the 27th, with heat indices reaching 95 degrees in some of the lower elevations.
More
Sources
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.