Pennsylvania, 1997

Heat in Pennsylvania, February 19 to 22, 1997

February 19 to 22, 1997 · NWS PHI · 10 events in 10 counties and zones

A persistent west to southwest flow at all levels of the atmosphere brought unseasonably warm weather into the Northeast from the afternoon of the 19th through the 22nd. This warm spell ended rather abruptly with a strong cold frontal passage on the 22nd.

Where it happened

Every event with a place to put it; 7 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
10

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 PHI wrote it up.

A persistent west to southwest flow at all levels of the atmosphere brought unseasonably warm weather into the Northeast from the afternoon of the 19th through the 22nd. This warm spell ended rather abruptly with a strong cold frontal passage on the 22nd. High temperatures reached into the 50s over the higher terrain in the Poconos and the 60s elsewhere. A new record high temperature for the 19th of 63 degrees was set at the Lehigh Valley International Airport. The record high temperature of 68 degrees was tied on the 22nd at the Philadelphia International Airport. The warmest day for most places was either the 19th or the 22nd. The warmest temperatures reached during this spell included 70 degrees on the 21st at the Philadelphia International Airport and (on the 22nd) at Northeast Philadelphia Airport, 69 degrees on the 19th in Levittown and on the 22nd in New Hope (Bucks County), 68 degrees on the 19th in Valley Forge (Montgomery County), 67 degrees on the 19th in Reading and on the 22nd at the Lehigh Valley International Airport, 65 degrees on the 22nd in East Stroudsburg, 57 degrees on the 22nd in Jundale (Carbon County), 56 degrees in Tobyhanna (Monroe County) on the 22nd.

The radar

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

Open the radar archive at this moment

Event by event

10 heat. Local standard time, as filed.

Heat, Berks

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Berks forecast zone
Coordinates
40.416, -75.926 (the zone’s center; the record gives no point)

Heat, Bucks

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Bucks forecast zone

Heat, Carbon

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Carbon forecast zone
Coordinates
40.918, -75.709 (the zone’s center; the record gives no point)

Heat, Chester

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Chester forecast zone

Heat, Delaware

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Delaware forecast zone
Coordinates
39.917, -75.399 (the zone’s center; the record gives no point)

Heat, Lehigh

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Lehigh forecast zone
Coordinates
40.613, -75.592 (the zone’s center; the record gives no point)

Heat, Monroe

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Monroe forecast zone
Coordinates
41.058, -75.339 (the zone’s center; the record gives no point)

Heat, Montgomery

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Montgomery forecast zone

Heat, Northampton

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Northampton forecast zone
Coordinates
40.754, -75.307 (the zone’s center; the record gives no point)

Heat, Philadelphia

When
February 19, 11:00 AM EST to February 22, 5:00 PM EST
Where
Philadelphia forecast zone
Coordinates
40.008, -75.134 (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 Pennsylvania in 1997Every state in 1997This day in weather historyWarnings in Pennsylvania, February 1997

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: 5595111, 5595112, 5595113, 5595114, 5595115, 5595116, 5595117, 5595118, 5595119, 5595120.