🇺🇸 Allentown vs 🇬🇧 London

Weather Comparison

Current Weather Right Now

🇺🇸

Allentown

scattered clouds

55°F

Scattered Clouds

Feels like 53°F

H 56°F / L 52°F

Humidity: 66%

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London

overcast clouds

48°F

Overcast Clouds

Feels like 44°F

H 50°F / L 45°F

Humidity: 55%

Climate Overview

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Allentown

Allentown in the Lehigh Valley south of the Blue Mountain Ridge has a sheltered climate with less precipitation than the coastal plain. The Blue Mountain blocks some northwesterly cold air creating slightly milder conditions. The Lehigh River creates valley humidity and the dense urban core has significant heat island effects.

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London

Temperate oceanic — mild, cloudy, and notoriously changeable year-round

Best monthsJune, July, August, September
AvoidNovember, December, January
Annual rain23 inches (585 mm) — spread evenly year-round

London's weather is famously mild but grey. It rarely gets very hot or very cold, but expect cloud cover most of the year. Summer (June–August) brings the best sunshine and warmth. Rain falls year-round but rarely in heavy bursts.

Seasonal Comparison

Season🇺🇸 Allentown🇬🇧 London
Spring

45–61°F

March–May

Summer

63–73°F

June–August

Fall

49–61°F

September–November

Winter

38–46°F

December–February

Allentown vs London: Frequently Asked Questions

Does Allentown or London have better weather?

Allentown and London have very different climates. Allentown in the Lehigh Valley south of the Blue Mountain Ridge has a sheltered climate with less pr London: Temperate oceanic — mild, cloudy, and notoriously changeable year-round. The best city depends on your preferred season and temperature range.

When is the best time to visit Allentown vs London?

Best time for Allentown: spring and fall. Best time for London: June, July, August, September.

More Comparisons

🇺🇸 Allentown Weather →🇬🇧 London Weather →