Heat, Berks
- When
- January 4, 10:00 AM EST to January 9, 5:00 PM EST
- Where
- Berks forecast zone
- Coordinates
- 40.416, -75.926 (the zone’s center; the record gives no point)
Heat in Pennsylvania, January 4 to 9, 1998
A high pressure system over the Western Atlantic, in a position normally seen during the summer months, gave Eastern Pennsylvania six days of unseasonably warm weather during early January. A cold front tried to move down across the area on the 5th, but stalled and remained over northern Pennsylvania.
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
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 high pressure system over the Western Atlantic, in a position normally seen during the summer months, gave Eastern Pennsylvania six days of unseasonably warm weather during early January. A cold front tried to move down across the area on the 5th, but stalled and remained over northern Pennsylvania. A stronger cold front moved through the region on the 9th. The warmest day for most locations was the 8th as many new record high temperatures were set. High temperatures that day included 70 degrees at the Franklin Institute within Philadelphia, 69 degrees at the Philadelphia International Airport, Reading (Berks County) and Neshaminy Falls (Bucks County), 67 degrees at the Lehigh Valley International Airport and Valley Forge (Montgomery County), 65 degrees in Crum Creek (Delaware County) and Springtown (Bucks County), 63 degrees in East Stroudsburg (Monroe County) and 60 degrees in Mount Pocono (Monroe County). The Lehigh Valley International Airport set four consecutive daily high temperature records from the 6th through the 9th.
The radar
The national radar mosaic for the moment the first event began.
Event by event
10 heat. Local standard time, as filed.
Heat, Bucks
- When
- January 4, 10:00 AM EST to January 9, 5:00 PM EST
- Where
- Bucks forecast zone
Heat, Carbon
- When
- January 4, 10:00 AM EST to January 9, 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
- January 4, 10:00 AM EST to January 9, 5:00 PM EST
- Where
- Chester forecast zone
Heat, Delaware
- When
- January 4, 10:00 AM EST to January 9, 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
- January 4, 10:00 AM EST to January 9, 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
- January 4, 10:00 AM EST to January 9, 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
- January 4, 10:00 AM EST to January 9, 5:00 PM EST
- Where
- Montgomery forecast zone
Heat, Northampton
- When
- January 4, 10:00 AM EST to January 9, 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
- January 4, 10:00 AM EST to January 9, 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
- Flash Flooding and High Wind in California, January 4 to 25, 1998
- Ice Storm in Kansas, January 4, 1998
- Flash Flooding in Arkansas, January 4 to 5, 1998
- Winter Storm in Oregon, January 4, 1998
- Ice Storm in Wisconsin, January 4 to 5, 1998
- Flash Flooding in Texas, January 4 to 5, 1998
- Ice Storm in Iowa, January 4, 1998
- Winter Storm in Utah, January 4 to 5, 1998
- Winter Weather in Vermont, January 4 to 6, 1998
- Winter Weather in New York, January 4 to 6, 1998
- Flash Flooding and Lightning Strike in Oklahoma, January 4 to 5, 1998
- Heavy Rain in Texas, January 4 to 5, 1998
More
Every storm in Pennsylvania in 1998Every state in 1998This day in weather historyWarnings in Pennsylvania, January 1998
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: 5630306, 5630307, 5630308, 5630309, 5630310, 5630311, 5630312, 5630313, 5630314, 5630315.