Philadelphia weather in April: Philadelphia, Pennsylvania: normal highs, lows, rain and records for April
Philadelphia in April has a normal high of 65°F and a normal low of 44°F, a daily mean of 55°F, rising from 59°F on the 1st to 70°F by the 30th. Measurable precipitation falls on 11 days in a normal April, 3.47 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 18°C and low of 7°C, 88 mm of precipitation and 1 cm of snow in April.
- NOAA stationPhiladelphia International Airport
- Station IDUSW00013739
- Location39.87°N 75.23°W
- Elevation10 ft (3 m)
- From the center11 miles
- Population1,573,916
- Jan 41° 26°
- Feb 44° 28°
- Mar 53° 34°
- Apr 65° 44°
- May 74° 54°
- Jun 83° 64°
- Jul 88° 70°
- Aug 86° 68°
- Sep 79° 61°
- Oct 67° 49°
- Nov 56° 39°
- Dec 46° 31°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Philadelphia in April?
The normal high is 65°F and the normal low 44°F, for a daily mean of 54.5°F. April is 10.9°F warmer than March and 9.8°F cooler than May. April is the 7th warmest month of the year in Philadelphia and the 7th wettest. Across the month the normal high rises 11°F, from 59°F on April 1 to 70°F on April 30. From one year to the next April's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 52°F and 57°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 59°F | 39°F | 36% | 22% |
| April 8 | 62°F | 42°F | 36% | 22% |
| April 15 | 65°F | 44°F | 36% | 21% |
| April 22 | 67°F | 47°F | 36% | 21% |
| April 30 | 70°F | 49°F | 36% | 21% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 59°F | 39°F | 36% | 22% | 12 h 40 min |
| April 2 | 59°F | 40°F | 36% | 22% | 12 h 40 min |
| April 3 | 60°F | 40°F | 36% | 22% | 12 h 40 min |
| April 4 | 60°F | 40°F | 36% | 22% | 12 h 40 min |
| April 5 | 61°F | 41°F | 36% | 22% | 12 h 50 min |
| April 6 | 61°F | 41°F | 36% | 22% | 12 h 50 min |
| April 7 | 61°F | 41°F | 36% | 22% | 12 h 50 min |
| April 8 | 62°F | 42°F | 36% | 22% | 13 h |
| April 9 | 62°F | 42°F | 37% | 22% | 13 h |
| April 10 | 63°F | 42°F | 36% | 22% | 13 h |
| April 11 | 63°F | 43°F | 36% | 22% | 13 h |
| April 12 | 63°F | 43°F | 36% | 21% | 13 h 10 min |
| April 13 | 64°F | 43°F | 36% | 21% | 13 h 10 min |
| April 14 | 64°F | 44°F | 36% | 21% | 13 h 10 min |
| April 15 | 65°F | 44°F | 36% | 21% | 13 h 10 min |
| April 16 | 65°F | 45°F | 36% | 21% | 13 h 20 min |
| April 17 | 66°F | 45°F | 36% | 21% | 13 h 20 min |
| April 18 | 66°F | 45°F | 36% | 21% | 13 h 20 min |
| April 19 | 66°F | 46°F | 36% | 21% | 13 h 20 min |
| April 20 | 67°F | 46°F | 36% | 21% | 13 h 30 min |
| April 21 | 67°F | 46°F | 36% | 21% | 13 h 30 min |
| April 22 | 67°F | 47°F | 36% | 21% | 13 h 30 min |
| April 23 | 68°F | 47°F | 36% | 21% | 13 h 30 min |
| April 24 | 68°F | 47°F | 36% | 21% | 13 h 40 min |
| April 25 | 68°F | 48°F | 36% | 21% | 13 h 40 min |
| April 26 | 69°F | 48°F | 36% | 21% | 13 h 40 min |
| April 27 | 69°F | 48°F | 36% | 21% | 13 h 40 min |
| April 28 | 69°F | 49°F | 36% | 21% | 13 h 40 min |
| April 29 | 70°F | 49°F | 36% | 21% | 13 h 50 min |
| April 30 | 70°F | 49°F | 36% | 21% | 13 h 50 min |
- Normal high
- 65°FApril average
- Normal low
- 44°FApril average
- Precipitation
- 3.47 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 0.3 inmonth total
- Nights at 32°F or colder
- 1
- Daylight
- 12 h 40 min to 13 h 50 minApril 1 to April 30
- Days at 70°F or more
- 9
- Days at 80°F or more
- 2
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013739; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Philadelphia in April?
On a given April day the chance of 0.01 inch or more is 36% on average, highest around April 9 (37%). In all, 3.47 in falls on 11 days of a normal April, 1 of them with an inch or more.
In a normal April in Philadelphia, 1 nights fall to freezing and snowfall averages 0.3 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013739.
How humid and windy is Philadelphia in April?
At 3 p.m. the normal temperature is 67°F with 42% relative humidity and a dew point of 44°F; at 6 a.m. it is 53°F with 72% humidity. The wind averages 9.5 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 53°F | 44°F | 72% | 8.0 mph | – |
| 9 a.m. | 59°F | 44°F | 57% | 9.9 mph | 33% |
| noon | 65°F | 44°F | 46% | 11.2 mph | 27% |
| 3 p.m. | 67°F | 44°F | 42% | 11.9 mph | 21% |
| 6 p.m. | 65°F | 43°F | 46% | 11.2 mph | 24% |
| 9 p.m. | 59°F | 44°F | 59% | 8.6 mph | 36% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013739. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for April in Philadelphia?
The warmest April temperature on Philadelphia's official record (since 1873) is 95°F, on April 17, 2002; the coldest is 14°F, on April 1, 1923. The wettest April brought 9.76 in (1874); the snowiest, 19.4 inches (1915).
The April mean against the 1991-2020 normal of 54.5°F: 2021 55.6°F (+1.1), 2022 54.0°F (−0.5), 2023 58.3°F (+3.8), 2024 56.3°F (+1.8), 2025 56.6°F (+2.1), 2026 58.7°F (+4.2). 5 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 55.6°F | +1.1°F | 2.69 in |
| 2022 | 54.0°F | −0.5°F | 4.51 in |
| 2023 | 58.3°F | +3.8°F | 5.17 in |
| 2024 | 56.3°F | +1.8°F | 4.16 in |
| 2025 | 56.6°F | +2.1°F | 2.83 in |
| 2026 | 58.7°F | +4.2°F | 2.11 in |
Source: records: ACIS, NWS threaded record PHLthr; recent months: ACIS, station USW00013739. Records and recent months use complete months only.
How does April in Philadelphia compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, April normal highs run from 54°F in Laporte to 67°F in Schenley; Philadelphia's is 65°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Philadelphia in March53°F by day, 34°F at night
- Philadelphia in May74°F by day, 54°F at night
- Philadelphia through the yearEvery month, frost dates, records and recent years
- Pennsylvania in AprilThe statewide normal and the warmest and coolest places
- Schenley: Pennsylvania's warmest Aprilnormal high 67°F