Maine, 2024Excessive Heat in Maine, June 19 to 20, 2024
June 19 to 20, 2024 · NWS GYX · 5 events in 5 counties and zones
A multi-day heatwave brought excessive heat to Maine with temperatures and high humidity bringing heat index values above 95 degrees. The heat began on June 17th before peaking in intensity on June 19th and 20th with heat index values above 100F.
Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
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- Heat and drought
- Cold
- Fire, smoke and dust
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Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 5
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
A multi-day heatwave brought excessive heat to Maine with temperatures and high humidity bringing heat index values above 95 degrees. The heat began on June 17th before peaking in intensity on June 19th and 20th with heat index values above 100F. This was one of the earliest heat waves on record with July like heat and humidity being experienced in June. Impacts: CDC data indicated a spike in hospitals visits for heat related illnesses.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Gray, ME wrote its last area forecast discussion before the first event at Jun 19, 10:00 AM EST, 1 hour earlier.
Area forecast discussion, Jun 19, 10:00 AM EST, 1 hour before
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</html>Hazardous weather outlook, Jun 19, 1:58 AM EST, 9 hours 2 minutes before
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</html>Excessive Heat, Interior York
- When
- June 19, 11:00 AM EST to June 20, 7:00 PM EST
- Where
- Interior York forecast zone
- Reported by
- ASOS
- Coordinates
- 43.429, -70.670 (the zone’s center; the record gives no point)
An early season heat wave impacted Maine from June 17th through the 20th with the peak of the heat occurring June 19th-20th when excessive heat was observed through southern and central parts of the state away from the immediate coast. Heat index values reached above 105F across southwestern Maine, with the Rachel Carson RAWS reaching a heat index of 109F and the Sanford ASOS reached a value of 106F. Maine CDC data showed a spike in hospital visits across the state with heat related hospital visits well above the 95th percentile. It was the 2nd highest hospital visit rate for heat since the July heat wave of 2018.
Excessive Heat, Coastal York
- When
- June 19, 11:00 AM EST to June 20, 7:00 PM EST
- Where
- Coastal York forecast zone
- Reported by
- ASOS
- Coordinates
- 43.429, -70.670 (the zone’s center; the record gives no point)
An early season heat wave impacted Maine from June 17th through the 20th with the peak of the heat occurring June 19th-20th when excessive heat was observed through southern and central parts of the state away from the immediate coast. Heat index values reached above 105F across southwestern Maine, with the Rachel Carson RAWS reaching a heat index of 109F and the Sanford ASOS reached a value of 106F. Maine CDC data showed a spike in hospital visits across the state with heat related hospital visits well above the 95th percentile. It was the 2nd highest hospital visit rate for heat since the July heat wave of 2018.
Excessive Heat, Central Interior Cumberland
- When
- June 19, 11:00 AM EST to June 20, 7:00 PM EST
- Where
- Central Interior Cumberland forecast zone
- Reported by
- ASOS
- Coordinates
- 43.806, -70.330 (the zone’s center; the record gives no point)
An early season heat wave impacted Maine from June 17th through the 20th with the peak of the heat occurring June 19th-20th when excessive heat was observed through southern and central parts of the state away from the immediate coast. Heat index values reached above 105F across southwestern Maine, with the Portland ASOS reaching a heat index of 104F and numerous sites reaching around 108F further inland. Maine CDC data showed a spike in hospital visits across the state with heat related hospital visits well above the 95th percentile. It was the 2nd highest hospital visit rate for heat since the July heat wave of 2018.
Excessive Heat, Interior Cumberland Highlands
- When
- June 19, 11:00 AM EST to June 20, 7:00 PM EST
- Where
- Interior Cumberland Highlands forecast zone
- Reported by
- ASOS
- Coordinates
- 43.806, -70.330 (the zone’s center; the record gives no point)
An early season heat wave impacted Maine from June 17th through the 20th with the peak of the heat occurring June 19th-20th when excessive heat was observed through southern and central parts of the state away from the immediate coast. Heat index values reached above 105F across southwestern Maine, with the Portland ASOS reaching a heat index of 104F and numerous sites reaching around 108F further inland. Maine CDC data showed a spike in hospital visits across the state with heat related hospital visits well above the 95th percentile. It was the 2nd highest hospital visit rate for heat since the July heat wave of 2018.
Excessive Heat, Androscoggin
- When
- June 19, 11:00 AM EST to June 20, 7:00 PM EST
- Where
- Androscoggin forecast zone
- Reported by
- Mesonet
- Coordinates
- 44.166, -70.206 (the zone’s center; the record gives no point)
An early season heat wave impacted Maine from June 17th through the 20th with the peak of the heat occurring June 19th-20th when excessive heat was observed through southern and central parts of the state away from the immediate coast. Heat index values reached above 105F across southwestern Maine, with numerous sites reaching around 106F further inland. Maine CDC data showed a spike in hospital visits across the state with heat related hospital visits well above the 95th percentile. It was the 2nd highest hospital visit rate for heat since the July heat wave of 2018.
- Excessive Heat
- Heat at or above the local excessive heat warning criteria, or heat that caused deaths.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Excessive Heat and Heat in Arizona, June 19 to 22, 202418 deaths · 25 events
- Flash Flooding and Debris Flows in New Mexico, June 19 to 23, 202451 injured · $2.6 million · 2 in hail · 41 events
- Storm Surge in Texas, June 19 to 21, 2024$2.5 million · 3 events
- Tornado in Texas, June 19, 2024$300,000 · EF1 · 1 event
- Damaging Winds in Vermont, June 19, 2024$80,000 · 65 kt wind · 9 events
- Tornadoes and Flash Flooding in Texas, June 19 to 20, 2024$38,000 · EF0 · 14 events
- Damaging Winds in Michigan, June 19, 2024$52,000 · 52 kt wind · 2 events
- Heat and Damaging Winds in New York, June 19, 202450 kt wind · 26 events
- High Wind in Texas, June 19 to 20, 2024$30,000 · 61 kt wind · 1 event
- Flash Flooding and Damaging Winds in New York, June 19 to 20, 2024$12,000 · 51 kt wind · 19 events
- Hail and Damaging Winds in New Hampshire, June 19, 2024$2,000 · 1.5 in hail · 15 events
- Hail and Damaging Winds in Michigan, June 19, 202456 kt wind · 13 events
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 2026-10-01. Each event’s entry at NCEI: 1193077, 1193078, 1193079, 1193080, 1193081.