Allentown weather in July: Allentown, Pennsylvania: normal highs, lows, rain and records for July
Allentown in July has a normal high of 86°F and a normal low of 65°F, a daily mean of 76°F, holding near 86°F all month. Measurable precipitation falls on 11 days in a normal July, 5.30 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 18°C, 135 mm of precipitation in July.
- NOAA stationAllentown Lehigh Valley International Airport
- Station IDUSW00014737
- Location40.65°N 75.45°W
- Elevation390 ft (119 m)
- From the center4 miles
- Population127,138
- Jan 38° 22°
- Feb 42° 23°
- Mar 51° 31°
- Apr 63° 40°
- May 74° 51°
- Jun 82° 60°
- Jul 86° 65°
- Aug 84° 63°
- Sep 77° 55°
- Oct 66° 44°
- Nov 54° 34°
- Dec 43° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Allentown in July?
The normal high is 86°F and the normal low 65°F, for a daily mean of 75.6°F. July is 4.7°F warmer than June and 2.0°F warmer than August. July is the warmest month of the year in Allentown and the wettest. From one year to the next July's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Julys in three average between 73°F and 78°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 36%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 86°F | 64°F | 36% | 24% |
| July 8 | 87°F | 65°F | 36% | 24% |
| July 15 | 87°F | 65°F | 35% | 25% |
| July 22 | 87°F | 65°F | 35% | 26% |
| July 31 | 86°F | 65°F | 35% | 25% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 14, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 86°F | 64°F | 36% | 24% | 15 h |
| July 2 | 86°F | 64°F | 36% | 24% | 15 h |
| July 3 | 86°F | 64°F | 36% | 24% | 15 h |
| July 4 | 86°F | 64°F | 36% | 24% | 15 h |
| July 5 | 86°F | 64°F | 36% | 24% | 15 h |
| July 6 | 86°F | 64°F | 36% | 24% | 15 h |
| July 7 | 87°F | 65°F | 36% | 24% | 15 h |
| July 8 | 87°F | 65°F | 36% | 24% | 15 h |
| July 9 | 87°F | 65°F | 36% | 24% | 15 h |
| July 10 | 87°F | 65°F | 35% | 24% | 15 h |
| July 11 | 87°F | 65°F | 35% | 25% | 14 h 50 min |
| July 12 | 87°F | 65°F | 35% | 25% | 14 h 50 min |
| July 13 | 87°F | 65°F | 35% | 25% | 14 h 50 min |
| July 14 | 87°F | 65°F | 35% | 25% | 14 h 50 min |
| July 15 | 87°F | 65°F | 35% | 25% | 14 h 50 min |
| July 16 | 87°F | 65°F | 35% | 25% | 14 h 50 min |
| July 17 | 87°F | 65°F | 35% | 25% | 14 h 50 min |
| July 18 | 87°F | 65°F | 35% | 25% | 14 h 50 min |
| July 19 | 87°F | 65°F | 35% | 25% | 14 h 40 min |
| July 20 | 87°F | 65°F | 35% | 25% | 14 h 40 min |
| July 21 | 87°F | 65°F | 35% | 26% | 14 h 40 min |
| July 22 | 87°F | 65°F | 35% | 26% | 14 h 40 min |
| July 23 | 86°F | 65°F | 35% | 26% | 14 h 40 min |
| July 24 | 86°F | 65°F | 35% | 26% | 14 h 40 min |
| July 25 | 86°F | 65°F | 35% | 26% | 14 h 30 min |
| July 26 | 86°F | 65°F | 35% | 26% | 14 h 30 min |
| July 27 | 86°F | 65°F | 35% | 26% | 14 h 30 min |
| July 28 | 86°F | 65°F | 35% | 26% | 14 h 30 min |
| July 29 | 86°F | 65°F | 35% | 26% | 14 h 30 min |
| July 30 | 86°F | 65°F | 35% | 26% | 14 h 20 min |
| July 31 | 86°F | 65°F | 35% | 25% | 14 h 20 min |
- Normal high
- 86°FJuly average
- Normal low
- 65°FJuly average
- Precipitation
- 5.30 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 8
- 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
- 26
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014737; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Allentown in July?
On a given July day the chance of 0.01 inch or more is 35% on average, highest around July 1 (36%). In all, 5.30 in falls on 11 days of a normal July, 1 of them with an inch or more.
In a normal July in Allentown, 8 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014737.
How humid and windy is Allentown in July?
At 3 p.m. the normal temperature is 83°F with 50% relative humidity and a dew point of 63°F; at 6 a.m. it is 67°F with 89% humidity. The wind averages 5.5 mph, most often from the west-southwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 67°F | 63°F | 89% | 3.2 mph | 63% |
| 9 a.m. | 75°F | 64°F | 69% | 5.6 mph | 62% |
| noon | 81°F | 63°F | 55% | 7.6 mph | 53% |
| 3 p.m. | 83°F | 63°F | 50% | 8.6 mph | 55% |
| 6 p.m. | 80°F | 63°F | 56% | 7.6 mph | 62% |
| 9 p.m. | 74°F | 64°F | 71% | 4.7 mph | 67% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014737. 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 Allentown?
The warmest July temperature on Allentown's official record (since 1922) is 105°F, on July 3, 1966; the coldest is 46°F, on July 4, 1933. The wettest July brought 10.42 in (1969).
The July mean against the 1991-2020 normal of 75.6°F: 2021 74.1°F (−1.5), 2022 76.4°F (+0.8), 2023 75.4°F (−0.2), 2024 76.9°F (+1.3), 2025 77.3°F (+1.7), 2026 75.2°F (−0.4). 3 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 74.1°F | −1.5°F | 4.46 in |
| 2022 | 76.4°F | +0.8°F | 2.38 in |
| 2023 | 75.4°F | −0.2°F | 6.27 in |
| 2024 | 76.9°F | +1.3°F | 3.60 in |
| 2025 | 77.3°F | +1.7°F | 3.93 in |
| 2026 | 75.2°F | −0.4°F | 3.70 in |
Source: records: ACIS, NWS threaded record ABEthr; recent months: ACIS, station USW00014737. Records and recent months use complete months only.
How does July in Allentown 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; Allentown's is 86°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.