Boston vs Allentown Climate
99%matchOn climate, Allentown is a 99% match for Boston. Very close: temperatures within 3°F (2°C), with similar rain, humidity and sun.
Boston gets 46 in (1167 mm) of rain a year and Allentown 44 in (1105 mm). July is the warmest month in both, with highs of 85°F (29°C) in Boston and 87°F (31°C) in Allentown.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
BostonAllentownsolid = high, dashed = low
Rain (in per month)
BostonAllentown
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Boston | Allentown | Boston | Allentown | Boston | Allentown | |
| Jan | 37°F(3°C) | 38°F(4°C) | 20°F(-6°C) | 21°F(-6°C) | 3.7 in(95 mm) | 3.1 in(80 mm) |
| Feb | 40°F(5°C) | 41°F(5°C) | 22°F(-6°C) | 22°F(-6°C) | 3.2 in(82 mm) | 2.6 in(65 mm) |
| Mar | 47°F(8°C) | 50°F(10°C) | 29°F(-2°C) | 29°F(-1°C) | 4.7 in(119 mm) | 3.5 in(88 mm) |
| Apr | 58°F(15°C) | 63°F(17°C) | 38°F(3°C) | 39°F(4°C) | 3.9 in(100 mm) | 3.4 in(87 mm) |
| May | 70°F(21°C) | 74°F(23°C) | 48°F(9°C) | 50°F(10°C) | 3.2 in(82 mm) | 3.8 in(96 mm) |
| Jun | 79°F(26°C) | 83°F(28°C) | 58°F(14°C) | 59°F(15°C) | 3.7 in(94 mm) | 4.3 in(109 mm) |
| Jul | 85°F(29°C) | 87°F(31°C) | 64°F(18°C) | 64°F(18°C) | 3.5 in(88 mm) | 3.7 in(95 mm) |
| Aug | 83°F(29°C) | 86°F(30°C) | 63°F(17°C) | 62°F(17°C) | 3.6 in(91 mm) | 3.9 in(100 mm) |
| Sep | 76°F(24°C) | 80°F(26°C) | 55°F(13°C) | 55°F(13°C) | 3.6 in(92 mm) | 4.3 in(110 mm) |
| Oct | 64°F(18°C) | 67°F(19°C) | 44°F(6°C) | 43°F(6°C) | 4.5 in(114 mm) | 3.9 in(99 mm) |
| Nov | 53°F(12°C) | 55°F(13°C) | 35°F(2°C) | 34°F(1°C) | 3.9 in(100 mm) | 3.3 in(83 mm) |
| Dec | 43°F(6°C) | 44°F(6°C) | 26°F(-3°C) | 27°F(-3°C) | 4.3 in(110 mm) | 3.7 in(93 mm) |
1991–2020 averages, by calendar month.