Pennsylvania Snow Day Calculator: Snow Day Chances Tomorrow by City
Pennsylvania's snow varies from lake-effect snow around Erie in the northwest, to the mountains of the central part of the state, to nor'easters along the Philadelphia corridor.
Many Pennsylvania districts use two-hour delays and Flexible Instructional Days (state-approved remote school days, up to five a year), so a delay or a remote day can replace a full closure.
Forecast data may be out of date. We're working on it; check your local forecast too.
Pennsylvania's largest city
Philadelphia, PA
Friday
Unlikely
<1%
chance of a snow day
<1% chance of a delay
Monday
Unlikely
<1%
chance of a snow day
<1% chance of a delay
Overnight snow 0.0"Usually closes at 3"
- No meaningful snow or ice in the forecast for Friday morning.
- Philadelphia usually needs about 3" to close schools (normal snowfall 17" a year).
Estimate, not official. Check your school district for the final decision.
Updated .
Pennsylvania city snow day pages
Snow day chances by city in Pennsylvania
Usually closes at about:under 2"2–4"4–6"6"+
Chance of a snow day and of a delay on the next school day for the largest Pennsylvania towns we track, highest chance first. We cover 169 places in Pennsylvania; enter your ZIP code above for any of them.
| Place | Snow day | Delay | Normal snow | Usually closes at |
|---|---|---|---|---|
| Charleston Township Winter Weather Advisory | 3% | 15% | 52" | 6" |
| Canton Township | 3% | 25% | 43" | 5" |
| Westfield Winter Weather Advisory | 3% | 12% | 51" | 6" |
| Coudersport Winter Weather Advisory | 2% | 4% | 73" | 7" |
| Towanda | 1% | 3% | 38" | 5" |
| Philadelphia | <1% | <1% | 17" | 3" |
| Pittsburgh | <1% | <1% | 28" | 4" |
| Allentown | <1% | <1% | 32" | 4" |
| Reading | <1% | <1% | 26" | 4" |
| Erie | <1% | <1% | 112" | 9" |
| Upper Darby Township | <1% | <1% | 18" | 3" |
| Bethlehem | <1% | <1% | 34" | 5" |
| Scranton | <1% | <1% | 46" | 6" |
| Lower Merion Township | <1% | <1% | 14" | 2.5" |
| Bensalem Township | <1% | <1% | 21" | 3" |
| Abington Township | <1% | <1% | 18" | 3" |
| Lancaster | <1% | <1% | 22" | 3" |
| Lower Paxton Township | <1% | <1% | 25" | 4" |
| Harrisburg | <1% | <1% | 25" | 4" |
| Middletown Township | <1% | <1% | 21" | 3" |
| York | <1% | <1% | 25" | 4" |
| Wilkes-Barre | <1% | <1% | 42" | 5" |
| Altoona | <1% | <1% | 39" | 5" |
| Hempfield Township | <1% | <1% | 29" | 4" |
| State College | <1% | <1% | 43" | 5" |
| Northampton Township | <1% | <1% | 21" | 3" |
| Penn Hills Township | <1% | <1% | 26" | 4" |
| Upper Merion Township | <1% | <1% | 18" | 3" |
| Hampden Township | <1% | <1% | 26" | 4" |
| Cranberry Township | <1% | <1% | 30" | 4" |
| Lower Makefield Township | <1% | <1% | 25" | 4" |
| Radnor Township | <1% | <1% | 15" | 2.5" |
| Chester | <1% | <1% | 19" | 3" |
| Warminster Township | <1% | <1% | 19" | 3" |
| Lower Macungie Township | <1% | <1% | 24" | 4" |
| Mount Lebanon Township | <1% | <1% | 28" | 4" |
| Ross Township | <1% | <1% | 31" | 4" |
| North Huntingdon Township | <1% | <1% | 25" | 4" |
| York Township | <1% | <1% | 26" | 4" |
| Easton | <1% | <1% | 34" | 5" |
Chances are for Friday. Normal snow is the NOAA 1991–2020 annual average near each town.
How much snow closes school in Pennsylvania?
Across Pennsylvania's larger towns, normal snowfall runs from about 14" a year in Lower Merion Township to about 112" in Erie, so the amount it takes to close schools varies too: from roughly 2.5" to 9" of overnight snow in our model.
- Philadelphia: about 17" of snow a year; usually closes at about 3".
- Pittsburgh: about 28" of snow a year; usually closes at about 4".
- Allentown: about 32" of snow a year; usually closes at about 4".
- Reading: about 26" of snow a year; usually closes at about 4".
- Erie: about 112" of snow a year; usually closes at about 9".
- Upper Darby Township: about 18" of snow a year; usually closes at about 3".
Compare every state on our how much snow closes school map.
Winter weather alerts and forecaster notes in Pennsylvania
- Winter Weather Advisory Charleston Township, Coudersport, Westfield
NWS Mount Holly NJ · Key Messages
- 1. A strengthening storm over our area this afternoon moves offshore tonight and Friday. 2. A stretch of below normal temperatures begins on Friday, continuing through the weekend as a much colder airmass moves overhead.
Excerpt from the National Weather Service Mount Holly NJ Area Forecast Discussion, issued Nov 12, 1:46 PM EST. Read the full discussion.
NWS Pittsburgh PA · Key Messages
- 1.) Visibility reductions are possible in isolated to scattered lake-enhanced rain and snow showers through early Sunday morning. 2.) Dry and tranquil weather returns by Sunday afternoon and persists through the middle of next week as expansive high pressure builds across the region.
Excerpt from the National Weather Service Pittsburgh PA Area Forecast Discussion, issued Nov 12, 12:36 PM EST. Read the full discussion.
Pennsylvania's biggest snow days last winter (2025–26)
Source: NOAA GHCN-Daily, nearest reporting station to each city
Biggest single-day snowfalls in the 2025–26 winter at NOAA stations near Philadelphia, Pittsburgh, Erie, Scranton, Lancaster:
| Date | Near | Snowfall |
|---|---|---|
| Sun, Jan 25, 2026 | Pittsburgh | 11.2" |
| Sun, Jan 25, 2026 | Scranton | 9.7" |
| Sun, Jan 25, 2026 | Philadelphia | 9.3" |
| Wed, Dec 31, 2025 | Erie | 9" |
| Sun, Jan 25, 2026 | Erie | 8.9" |
| Thu, Jan 15, 2026 | Erie | 8" |
| Mon, Feb 23, 2026 | Philadelphia | 7.5" |
| Sun, Jan 25, 2026 | Lancaster | 7.2" |
Season totals: Philadelphia 30.1" · Pittsburgh 51.6" · Erie 74.3" · Scranton 37.8" · Lancaster 20.4". Source: NOAA GHCN-Daily.
Largest Pennsylvania school districts
These districts make the official call for schools around Pennsylvania. Their websites post closings and delays first:
Snow days in nearby states
Pennsylvania snow day FAQ
Will there be a snow day in Pennsylvania tomorrow?
No town we track in Pennsylvania has more than a 10% chance of a snow day on Friday right now. Enter your ZIP code at the top of this page for your own town; we track 169 places in Pennsylvania.
How much snow does it take to close school in Pennsylvania?
It varies across the state. Based on normal snowfall, our model puts the closing point at about 2.5" in Lower Merion Township and about 9" in Erie. Ice and dangerous cold can close schools with less snow.
What were Pennsylvania's biggest snow days last winter?
Among the NOAA stations we checked, the biggest single-day snowfall in the 2025–26 winter was 11.2 inches near Pittsburgh on Jan 25, 2026.
Where are Pennsylvania school closings announced?
Each district announces its own closings and delays on its website, app and text alerts, and local TV stations publish closing lists. Large districts include School District of Philadelphia, Pittsburgh Public Schools, Central Bucks School District.