PlainClimate

Pennsylvania Climate Data

Climate normals for 157 cities from 293 NOAA weather stations.

Data updated July 2026

Avg Temperature

50°F (10°C)

Avg Precipitation

45.2"

Avg Snowfall

44.1"

Cities / Stations

157 / 293

Pennsylvania's climate in one line

Pennsylvania averages 50°F a year - cooler than 60% of U.S. states, spanning Oswayo at 44°F to Phila Franklin Inst at 58°F.

50°F
statewide average · 40th percentile of states
45"
average annual precipitation
78/100
most comfortable: Harrisburg Cptl CY
157
cities · 293 NOAA stations

Statewide figures are simple averages across 293 stations, local conditions vary widely by elevation and coast distance.

How Pennsylvania ranks among all 50 states

Pennsylvania's average temperature vs. all U.S. states

Statewide annual mean temperature, NOAA 1991–2020 normals

50 Top 60% higher than 40% of 50 US states

30–35: 1 US states (2%). Below this entry. 35–40: 0 US states (0%). Below this entry. 40–45: 8 US states (16%). Below this entry. 45–50: 10 US states (20%). Below this entry. 50–55: 12 US states (24%). This entry sits in this band. 55–60: 8 US states (16%). Above this entry. 60–65: 7 US states (14%). Above this entry. 65–70: 2 US states (4%). Above this entry. 70–75: 2 US states (4%). Above this entry. This state 30 75 every U.S. state, bucketed by value

Each bar is a band; taller bars hold more US states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals (statewide aggregate) · 1991–2020

Pennsylvania Climate in Context

U.S. land-mean temperature anomaly (NOAA NCEI) tracked against global anomaly (NASA GISTEMP). Paris Agreement 1.5°C and 2.0°C thresholds shown as reference lines. Pennsylvania sits within this national warming envelope; individual cities below show local readings against this trend.

Pennsylvania within U.S. vs Global Warming, 1900-2024 Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States (incl. Pennsylvania) +0.11 °C/decade
  • Global (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI U.S. Climate Normals + NASA GISTEMP land-ocean.

Cities in Pennsylvania

157 cities with climate data

City Avg Temp Precip
Acmetonia Lock 51°F 44.5"
Allentown 53°F 47.4"
Altoona 50°F 44.7"
Altoona Blair CO 51°F 36.6"
Alvin R Bush Dam 49°F N/A
Avondale 52°F 47.1"
Bear Gap 51°F 48.0"
Beaver Falls 50°F 40.3"
Benton 48°F 48.4"
Biglerville 53°F 45.3"
Bloserville 52°F 43.7"
Blue Marsh Lake 52°F 48.4"
Braddock Lock 52°F 40.6"
Bradford 4sw Rsch 45°F 49.6"
Bradford Rgnl 46°F 41.9"
Bucksville 52°F 51.0"
Butler 49°F 43.2"
Canton 47°F 41.2"
Carlisle Wtp 52°F 48.0"
Cashtown 51°F 46.4"
Chalk Hill 47°F 55.7"
Chambersburg 53°F 43.5"
Chandlers Valley 45°F 48.9"
Charleroi Lock 53°F 40.9"
Clarence 46°F 44.5"
Clarion 48°F 46.9"
Clearfield Lawrence 49°F 40.3"
Clermont 44°F 50.8"
Coatesville 53°F 52.1"
Confluence 1 SW Dam 50°F 47.2"
Connellsville 52°F 46.9"
Cooksburg 46°F 46.7"
Coudersport 45°F 44.0"
Cowanesque Dam 47°F 36.9"
Dehart Dam 51°F 50.9"
Donegal 50°F 50.1"
Donora 52°F 40.9"
Doylestown 53°F 47.7"
Dubois Jefferson CO 48°F 42.4"
Dushore 46°F 43.4"
E Stroudsburg 50°F 53.5"
Ebensburg Sewage Plt 47°F 48.7"
Eisenhower Nhs 53°F 44.5"
Emporium 48°F 43.8"
Emsworth L/d Ohio Rvr 53°F 38.3"
Erie 51°F 43.0"
Everett 52°F 40.4"
Ford City 4 S Dam 50°F 44.3"
Francis E Walter Dam 47°F 48.8"
Franklin 49°F 46.3"
Glen Hazel 2 NE Dam 45°F 46.4"
Glenmoore 53°F 50.8"
Glenwillard Dashields L&d 52°F 38.5"
Grampian 47°F 48.3"
Graterford 52°F 48.5"
Grays Landing 52°F 42.1"
Hamburg 52°F 49.5"
Hanover 53°F 44.1"
Harrisburg 52°F 45.2"
Harrisburg Cptl CY 55°F 41.0"
Hawley 47°F 45.1"
Hidden Valley 47°F 55.9"
Hopewell Morgantown 52°F N/A
Indiana 50°F 47.9"
Jamestown 48°F 43.8"
Johnstown Cambria CO 49°F 41.3"
Kane 45°F 48.5"
Lancaster 53°F 42.1"
Lancaster 2ne Fltr Plt 54°F 44.1"
Landisville 51°F 45.2"
Laporte 45°F 53.3"
Laurel Mtn 50°F 49.6"
Laurel Summit 46°F 56.6"
Laurelton Ctr 52°F N/A
Lebanon 52°F 46.4"
Lehighton 50°F 51.9"
Lewisburg 50°F 43.9"
Lewistown 52°F 42.1"
Linesville 48°F 42.0"
Lock Haven Sewage Plt 50°F 41.7"
Loyalhanna Lake 50°F 43.4"
Mahanoy City 48°F 53.6"
Marcus Hook 57°F 41.6"
Matamoras 48°F 47.3"
Mckeesport 52°F 42.4"
Mercer 49°F N/A
Meyersdale 47°F 41.7"
Middletown Harrisburg 54°F 44.2"
Milanville 48°F 46.3"
Millheim 48°F 42.4"
Montgomery L&d 51°F 40.7"
Montrose 45°F 46.7"
Moon Twp 51°F 41.8"
MT Pleasant 51°F 43.9"
MT Pocono Mountains 46°F 50.2"
Murrysville 52°F 43.6"
Natrona Lock 52°F 42.2"
Neshaminy Falls 53°F 50.7"
New Castle 51°F 41.8"
New Holland 54°F 46.8"
Norristown 55°F 50.6"
Octoraro Lake 53°F 48.4"
Oswayo 44°F 43.1"
Phila Franklin Inst 58°F 50.7"
Philadelphia 56°F 44.1"
Philadelphia NE 56°F 45.0"
Philipsburg 47°F 42.0"
Phoenixville 54°F 45.1"
Pittsburgh 52°F 39.6"
Pittsburgh Allegheny CO 52°F 41.3"
Pleasant MT 44°F 51.4"
Port Allegany 46°F 42.6"
Port Meadville 49°F 41.4"
Pottstown Limerick 52°F 45.3"
Prince Gallitzin SP 48°F 40.7"
PT Marion Lock 52°F 45.1"
Putneyville 2 SE Dam 49°F 45.7"
Raystown HQ 52°F 41.7"
Raystown Lake 52°F 40.7"
Reading 54°F N/A
Reading Spaatz Fld 54°F 45.2"
Rector 50°F 45.7"
Renovo 50°F 41.2"
Ridgway 48°F 45.5"
Rodale Rsch Ctr 52°F 48.7"
S Mtn 50°F 48.6"
Safe Harbor Dam 55°F 46.3"
Salina 51°F 45.6"
Schenley Lock 52°F 43.5"
Selinsgrove 51°F 43.1"
Selinsgrove Penn Vly 51°F 40.9"
Sellersville 51°F 51.7"
Shawnee SP 50°F 39.6"
Shippensburg 53°F 42.5"
Slippery Rock 48°F 45.2"
Springboro 48°F 48.2"
Springtown 51°F 53.4"
State College 50°F 41.5"
Stevenson Dam 47°F 43.1"
Sunbury 50°F 43.7"
Tioga Hammond Dam 47°F 36.4"
Tionesta 2 SE Lake 50°F 47.1"
Titusville Wtr Wks 47°F 46.3"
Towanda 49°F 38.6"
Union City Filtration Plant 47°F 49.0"
Uniontown 52°F 44.4"
W Chester 52°F 50.9"
Warren 48°F 47.0"
Washington 51°F 41.3"
Waynesburg 51°F 43.1"
Wellsboro 46°F 42.3"
Wilkes-barre 51°F 38.7"
Williamsport 51°F 43.5"
Willow Grove 54°F N/A
Wolfsburg 51°F 40.5"
York 52°F 42.1"
York 3 Ssw Pump Stn 54°F 46.5"

Source: NOAA National Centers for Environmental Information U.S. Climate Normals v1.0.1 · 1991-2020 Statewide aggregates for Pennsylvania computed from 293 reporting stations.

Climate Insight: Pennsylvania

Pennsylvania's climate profile is aggregated from 157 cities and 293 NOAA weather stations reporting under the 1991–2020 U.S. Climate Normals program. The statewide average annual temperature sits at 50°F, which is the simple average across all measured stations rather than any single city's reading. Because Pennsylvania spans multiple latitudes, elevations, and proximities to large water bodies, local conditions can differ from this headline number by wide margins, coastal, valley, and mountain stations often diverge by ten degrees or more even within a single month.

Precipitation and snowfall averages round out the climatological picture. Across Pennsylvania, annual precipitation averages 45.2 inches, with typical seasonal snowfall near 44.1 inches statewide. These numbers combine rain, sleet, and snow water-equivalent and describe the thirty-year normal rather than any particular recent year. Readers evaluating a specific destination should drill into one of the 157 individual city pages below, each city's climate varies based on local geography, and the statewide figures here are averages that mask meaningful intrastate differences.

For planning purposes, the city table above is sorted to help you compare averages side-by-side: annual mean temperature, average daily high and low, precipitation totals, snowfall, and PlainClimate's composite comfort score. A city's comfort score weighs temperature mildness, humidity, and extreme-weather frequency into a single 0–100 rating, which is especially useful when contrasting locations at different elevations or distances from the coast. Use these rankings as a starting point, then open each city page for monthly breakdowns, degree-day totals, frost dates, and humidity metrics that matter for gardening, energy budgeting, and relocation decisions.

Choosing a place in Pennsylvania?

The statewide 50°F hides big local swings, pick by city, not by state.

  • Inside Pennsylvania, annual averages run from Oswayo (44°F) to Phila Franklin Inst (58°F) - a 14°F spread.
  • Harrisburg Cptl CY scores the state's highest comfort rating at 78/100. Harrisburg Cptl CY climate
  • Compare states side by side, or jump straight to national rankings. Rankings

NOAA 1991–2020 normals describe the typical year; treat them as planning baselines, not forecasts.

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). For informational purposes only.

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.