Philadelphia County Climate and Average Weather
Climate of Philadelphia County: average temperatures, rainfall and seasons month by month.
Climate in Philadelphia County 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 | 38° | 25° | 3,5 in | ★★☆☆☆ |
| February | 42° | 27° | 2,4 in | ★★☆☆☆ |
| March | 57° | 38° | 5,3 in | ★★★☆☆ |
| April | 66° | 46° | 3,3 in | ★★★★☆ |
| May | 73° | 56° | 5,0 in | ★★★★☆ |
| June | 85° | 66° | 3,1 in | ★★★★☆ |
| July | 88° | 71° | 4,5 in | ★★★★☆ |
| August | 84° | 67° | 3,4 in | ★★★★☆ |
| September | 79° | 62° | 3,6 in | ★★★★☆ |
| October | 69° | 51° | 1,8 in | ★★★★☆ |
| November | 56° | 40° | 2,6 in | ★★★☆☆ |
| December | 44° | 31° | 4,4 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
Recent extremes in Philadelphia County
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Philadelphia County compares with nearby places
Annual averages, and the difference against Philadelphia County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Philadelphia | 0 mi | 56°F | about the same | 43 in |
| ZIP Code 19103 | 0 mi | 56°F | about the same | 43 in |
| Philadelphia International Airport | 7 mi | 56°F | about the same | 44 in |
| New Jersey | 28 mi | 56°F | about the same | 41 in |
| Delaware | 58 mi | 57°F | +33°F warmer | 43 in |
Best time to visit Philadelphia County
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 Philadelphia County
Today is cooler than average for August. The forecast high of 77°F is 7.4°F below the 84°F typical for this month.
A 33% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
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 80°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 2 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
Philadelphia County is a county in Pennsylvania. Philadelphia County is a county in the United States. It has a population of about 1.6 million.
Right now it is 69°F (21°C) in Philadelphia County with mainly clear. It feels like 74°F. Today runs from 68°F to 77°F. Chance of precipitation is 33%. Sightseeing conditions score 9/10 - excellent - go now.
The best time to visit Philadelphia County 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 25°F.
The closest major airport is Philadelphia International Airport (PHL), about 7 mi away. Nearby highlights include Statue of Liberty (UNESCO World Heritage Site), Statue of Liberty, Hudson River and Empire State Building.
In plain terms. Today is cooler than average for August. The forecast high of 77°F is 7.4°F below the 84°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Philadelphia County today at 9/10. 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 Philadelphia County
| Type | County |
|---|---|
| State | Pennsylvania |
| Country | United States |
| Continent | North America |
| Coordinates | 39°57′9.4″N 75°9′54.7″W (39.9526, -75.1652) |
| Population | 1.570.000 |
| Local time | 6:39 AM (UTC-04:00) |
| Best months | June, July, August, September and October |
| Climate | Continental |
Weather map for Philadelphia County
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 Philadelphia County
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 Philadelphia County?
Philadelphia County is a county in Pennsylvania. Its coordinates are 39.9526, -75.1652. It lies in North America.
What is the weather like in Philadelphia County right now?
It is currently 69°F (21°C) with mainly clear. Humidity is 87% and wind is 3 mph.
When is the best time to visit Philadelphia County?
June, July, August, September and October offer the most comfortable conditions in Philadelphia County, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Philadelphia County in?
Philadelphia County observes America/New_York (UTC-04:00). The local time is 6:39 AM.
How many people live in Philadelphia County?
Philadelphia County has a population of approximately 1.6 million.
What is the nearest airport to Philadelphia County?
The closest airports are Philadelphia International Airport (PHL), 7 mi away, Newark Liberty International Airport (EWR), 73 mi away and John F. Kennedy International Airport (JFK), 87 mi away.
What are the top things to do in Philadelphia County?
Popular options include Statue of Liberty (UNESCO World Heritage Site), Statue of Liberty, Hudson River, Empire State Building, Times Square and Central Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - 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 August 23, 2026 at 6:39 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
