Massachusetts, 1999

Heat in Massachusetts, September 7 to 9, 1999

September 7 to 9, 1999 · NWS BOX · 3 events in 3 counties and zones

Record warm minimum temperatures were set at the Blue Hill Observatory in Milton, and in Boston and Worcester. Low temperatures at the Blue Hill Observatory only fell to 69 degrees on the 8th and 9th, which broke the previous record warm minimum temperatures of 68 degrees in 1943, and 68 degrees in 1936, respectively.

Where it happened

Every event with a place to put it; 3 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
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

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.

What happened

The episode as NWS BOX wrote it up.

Record warm minimum temperatures were set at the Blue Hill Observatory in Milton, and in Boston and Worcester. On the 7th, the low temperature of 70 degrees at the Blue Hill Observatory broke the previous record high minimum temperature of 68 degrees, which was set in 1943.Low temperatures at the Blue Hill Observatory only fell to 69 degrees on the 8th and 9th, which broke the previous record warm minimum temperatures of 68 degrees in 1943, and 68 degrees in 1936, respectively. At Logan International Airport in Boston, the low temperature of 71 degrees on the 8th tied the record warm minimum temperature which was set in 1945, while the low of 72 degrees on the 9th broke the previous record warm minimum temperature of 70 degrees set in 1884.In Worcester, low temperatures fell to 69 degrees on both the 8th and the 9th. This tied the record warm minimum temperatures for both dates, which were set in 1915.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

3 heat. Local standard time, as filed.

Heat, Eastern Norfolk

When
September 7, 12:00 AM EST to September 9, 11:59 PM EST
Where
Eastern Norfolk forecast zone
Reported by
OFFICIAL NWS OBS.
Coordinates
42.171, -71.184 (the zone’s center; the record gives no point)

Heat, Suffolk / Also Part of Norfolk

When
September 8, 12:00 AM EST to September 9, 11:59 PM EST
Where
Suffolk / Also Part of Norfolk forecast zone
Reported by
OFFICIAL NWS OBS.
Coordinates
42.264, -71.125 (the zone’s center; the record gives no point)

Heat, Southern Worcester

When
September 8, 12:00 AM EST to September 9, 11:59 PM EST
Where
Southern Worcester forecast zone
Reported by
OFFICIAL NWS OBS.
Coordinates
42.351, -71.908 (the zone’s center; the record gives no point)

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Massachusetts in 1999Every state in 1999This day in weather historyWarnings in Massachusetts, September 1999

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. Each event’s entry at NCEI: 5722152, 5722153, 5722154.