Philadelphia weather in July: Philadelphia, Pennsylvania: normal highs, lows, rain and records for July
Philadelphia in July has a normal high of 88°F and a normal low of 70°F, a daily mean of 79°F, holding near 88°F all month. Measurable precipitation falls on 10 days in a normal July, 4.38 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 21°C, 111 mm of precipitation in July.
- 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 July?
The normal high is 88°F and the normal low 70°F, for a daily mean of 78.7°F. July is 5.2°F warmer than June and 1.9°F warmer than August. July is the warmest month of the year in Philadelphia and the 2nd wettest. From one year to the next July's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Julys in three average between 76°F and 81°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 87°F | 68°F | 33% | 20% |
| July 8 | 88°F | 69°F | 32% | 20% |
| July 15 | 88°F | 70°F | 32% | 20% |
| July 22 | 88°F | 70°F | 32% | 21% |
| July 31 | 87°F | 70°F | 32% | 21% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 11, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 87°F | 68°F | 33% | 20% | 15 h |
| July 2 | 87°F | 68°F | 33% | 20% | 15 h |
| July 3 | 87°F | 69°F | 33% | 20% | 15 h |
| July 4 | 88°F | 69°F | 33% | 20% | 15 h |
| July 5 | 88°F | 69°F | 33% | 20% | 15 h |
| July 6 | 88°F | 69°F | 32% | 20% | 14 h 50 min |
| July 7 | 88°F | 69°F | 32% | 20% | 14 h 50 min |
| July 8 | 88°F | 69°F | 32% | 20% | 14 h 50 min |
| July 9 | 88°F | 70°F | 32% | 20% | 14 h 50 min |
| July 10 | 88°F | 70°F | 32% | 20% | 14 h 50 min |
| July 11 | 88°F | 70°F | 32% | 20% | 14 h 50 min |
| July 12 | 88°F | 70°F | 32% | 20% | 14 h 50 min |
| July 13 | 88°F | 70°F | 32% | 20% | 14 h 50 min |
| July 14 | 88°F | 70°F | 32% | 20% | 14 h 50 min |
| July 15 | 88°F | 70°F | 32% | 20% | 14 h 40 min |
| July 16 | 88°F | 70°F | 32% | 20% | 14 h 40 min |
| July 17 | 88°F | 70°F | 32% | 20% | 14 h 40 min |
| July 18 | 88°F | 70°F | 32% | 20% | 14 h 40 min |
| July 19 | 88°F | 70°F | 32% | 20% | 14 h 40 min |
| July 20 | 88°F | 70°F | 32% | 20% | 14 h 40 min |
| July 21 | 88°F | 70°F | 32% | 20% | 14 h 40 min |
| July 22 | 88°F | 70°F | 32% | 21% | 14 h 30 min |
| July 23 | 88°F | 70°F | 32% | 21% | 14 h 30 min |
| July 24 | 88°F | 70°F | 32% | 21% | 14 h 30 min |
| July 25 | 88°F | 70°F | 32% | 21% | 14 h 30 min |
| July 26 | 88°F | 70°F | 32% | 21% | 14 h 30 min |
| July 27 | 88°F | 70°F | 32% | 21% | 14 h 30 min |
| July 28 | 88°F | 70°F | 32% | 21% | 14 h 20 min |
| July 29 | 88°F | 70°F | 32% | 21% | 14 h 20 min |
| July 30 | 87°F | 70°F | 32% | 21% | 14 h 20 min |
| July 31 | 87°F | 70°F | 32% | 21% | 14 h 20 min |
- Normal high
- 88°FJuly average
- Normal low
- 70°FJuly average
- Precipitation
- 4.38 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 13
- Daylight
- 15 h to 14 h 20 minJuly 1 to July 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 28
- Sunshine
- 82%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 in Philadelphia in July?
On a given July day the chance of 0.01 inch or more is 32% on average, highest around July 1 (33%). In all, 4.38 in falls on 10 days of a normal July, 1 of them with an inch or more.
In a normal July in Philadelphia, 13 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013739.
How humid and windy is Philadelphia in July?
At 3 p.m. the normal temperature is 85°F with 48% relative humidity and a dew point of 64°F; at 6 a.m. it is 72°F with 80% humidity. The wind averages 8.0 mph, most often from the southwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 72°F | 66°F | 80% | 6.3 mph | – |
| 9 a.m. | 79°F | 66°F | 65% | 8.0 mph | – |
| noon | 84°F | 64°F | 52% | 8.9 mph | 22% |
| 3 p.m. | 85°F | 64°F | 48% | 10.2 mph | 16% |
| 6 p.m. | 83°F | 64°F | 54% | 10.0 mph | 21% |
| 9 p.m. | 77°F | 66°F | 68% | 7.6 mph | 32% |
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 July in Philadelphia?
The warmest July temperature on Philadelphia's official record (since 1873) is 104°F, on July 10, 1936; the coldest is 51°F, on July 21, 1966. The wettest July brought 13.24 in (2013).
The July mean against the 1991-2020 normal of 78.7°F: 2021 78.9°F (+0.2), 2022 82.1°F (+3.4), 2023 80.0°F (+1.3), 2024 81.0°F (+2.3), 2025 81.9°F (+3.2), 2026 80.3°F (+1.6). 6 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 78.9°F | +0.2°F | 6.72 in |
| 2022 | 82.1°F | +3.4°F | 2.20 in |
| 2023 | 80.0°F | +1.3°F | 5.24 in |
| 2024 | 81.0°F | +2.3°F | 2.44 in |
| 2025 | 81.9°F | +3.2°F | 4.61 in |
| 2026 | 80.3°F | +1.6°F | 7.03 in |
Source: records: ACIS, NWS threaded record PHLthr; recent months: ACIS, station USW00013739. Records and recent months use complete months only.
How does July in Philadelphia compare across Pennsylvania?
Across the 108 places PlainClimate covers in Pennsylvania, July normal highs run from 78°F in Laporte to 89°F in Marcus Hook; Philadelphia's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Philadelphia in June83°F by day, 64°F at night
- Philadelphia in August86°F by day, 68°F at night
- Philadelphia through the yearEvery month, frost dates, records and recent years
- Pennsylvania in JulyThe statewide normal and the warmest and coolest places
- Marcus Hook: Pennsylvania's warmest Julynormal high 89°F