Which is the hottest month in Allentown?

The hottest time of year in Allentown is normally July. Expect maximum daytime temperatures to reach 29°C with moderate heat and humidity.

Which month has the most rain in Allentown?

In terms of rainfall, August is usually the wettest month in Allentown with 110mm on average. There are normally 10 days in August with some rain.

When is it sunniest in Allentown?

The sunniest time of year in Allentown is normally July with bright sunshine on average for 62% of daylight hours; that's 9 hours of sunshine per day.

Best time to visit Allentown

Q: When is the best time to visit Allentown?

The best time to visit Allentown is May, June, August and September based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C.

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Allentown by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Allentown?

The best time to visit Allentown is May, June, August and September based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0
Feb
0
Mar
0
Apr
5
May
5
Jun
4
Jul
5
Aug
5
Sep
2
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°F)

36
Jan
37
Feb
50
Mar
61
Apr
72
May
81
Jun
84
Jul
82
Aug
75
Sep
64
Oct
52
Nov
39
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Pennsylvania (Allentown) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)