Pennsylvania Climate and Average Weather
Climate of Pennsylvania: average temperatures, rainfall and seasons month by month.
Climate in Pennsylvania month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 36° | 22° | 3,1 in | ★★☆☆☆ |
| February | 41° | 25° | 3,0 in | ★★☆☆☆ |
| March | 57° | 37° | 3,7 in | ★★★☆☆ |
| April | 66° | 46° | 3,4 in | ★★★★☆ |
| May | 72° | 55° | 5,9 in | ★★★★☆ |
| June | 84° | 64° | 3,1 in | ★★★★☆ |
| July | 88° | 70° | 5,0 in | ★★★★☆ |
| August | 82° | 65° | 4,4 in | ★★★★☆ |
| September | 77° | 60° | 2,6 in | ★★★★☆ |
| October | 67° | 48° | 2,1 in | ★★★★☆ |
| November | 54° | 38° | 2,0 in | ★★★☆☆ |
| December | 43° | 29° | 3,2 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
Recent extremes in Pennsylvania
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Pennsylvania compares with nearby places
Annual averages, and the difference against Pennsylvania.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Maryland | 92 mi | 57°F | +35°F warmer | 51 in |
| ZIP Code 20001 | 94 mi | 57°F | +35°F warmer | 49 in |
| Georgetown | 95 mi | 57°F | +35°F warmer | 49 in |
| Washington | 95 mi | 57°F | +35°F warmer | 49 in |
| Area Code 202 | 95 mi | 57°F | +35°F warmer | 49 in |
Climate by city in Pennsylvania
2 cities mapped in this atlas
Climate by county in Pennsylvania
1 counties mapped in this atlas
Best time to visit Pennsylvania
Go in June, July, August, September and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What this means for Pennsylvania
Today is warmer than average for October. The forecast high of 80°F is 13.9°F above the 67°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 81°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 76°F, so mornings feel nothing like afternoons
- A warm mid-layer and gloves for early mornings and evenings
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
Pennsylvania is a state in United States. Pennsylvania is a US state with its capital at Harrisburg. It has a population of about 13 million. The capital is Harrisburg.
Right now it is 70°F (21°C) in Pennsylvania with overcast. It feels like 71°F. Today runs from 61°F to 80°F. Chance of precipitation is 4%. Sightseeing conditions score 9.7/10 - excellent - go now.
The best time to visit Pennsylvania is June, July, August, September and October. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 88°F, while January is the coldest with lows near 22°F.
The closest major airport is Philadelphia International Airport (PHL), about 91 mi away. Nearby highlights include National Mall, Watkins Glen State Park, Statue of Liberty (UNESCO World Heritage Site) and Statue of Liberty.
In plain terms. Today is warmer than average for October. The forecast high of 80°F is 13.9°F above the 67°F typical for this month. The best window to be outside is roughly 8 AM to 11 AM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Pennsylvania today at 9.7/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Pennsylvania
| Type | State |
|---|---|
| Country | United States |
| Continent | North America |
| Coordinates | 40°16′23.5″N 76°53′12.1″W (40.2732, -76.8867) |
| Capital | Harrisburg |
| Population | 13.000.000 |
| Area | 46.054 sq mi |
| Abbreviation | PA |
| Time zone | America/New_York |
| Local time | 10:04 PM (UTC-04:00) |
| Best months | June, July, August, September and October |
| Climate | Continental |
Weather map for Pennsylvania
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Pennsylvania
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is Pennsylvania?
Pennsylvania is a state in United States. Its coordinates are 40.2732, -76.8867. It lies in North America.
What is the weather like in Pennsylvania right now?
It is currently 70°F (21°C) with overcast. Humidity is 70% and wind is 3 mph.
When is the best time to visit Pennsylvania?
June, July, August, September and October offer the most comfortable conditions in Pennsylvania, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Pennsylvania in?
Pennsylvania observes America/New_York (UTC-04:00). The local time is 10:04 PM.
How many people live in Pennsylvania?
Pennsylvania has a population of approximately 13 million.
What is the nearest airport to Pennsylvania?
The closest airports are Philadelphia International Airport (PHL), 91 mi away, Washington Dulles International Airport (IAD), 96 mi away and Ronald Reagan Washington National Airport (DCA), 99 mi away.
What are the top things to do in Pennsylvania?
Popular options include National Mall, Watkins Glen State Park, Statue of Liberty (UNESCO World Heritage Site), Statue of Liberty, Hudson River and Empire State Building.
What places are in Pennsylvania?
Pennsylvania covers 3 places in this atlas, including Philadelphia, Pittsburgh and Philadelphia County.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-states) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated October 1, 2026 at 10:04 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
