Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Allentown is from May, June, September. — consistent weather climate
🌦Humid
| Score | 12 | 14 | 19 | 52 | 78 | 76 | 70 | 74 | 78 | 75 | 36 | 11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cold | Mild | Humid | Humid | Humid | Humid | Mild | Cold | Cold |
| Temperature | -4–4°C | -4–6°C | -1–10°C | 5–16°C | 11–22°C | 16–27°C | 19–30°C | 18–28°C | 15–25°C | 9–18°C | 2–11°C | -1–7°C |
| Feels like | -9–-1°C | -9–2°C | -5–6°C | 1–14°C | 9–21°C | 16–28°C | 21–32°C | 20–30°C | 15–25°C | 7–17°C | -1–8°C | -5–3°C |
| Precipitation | 92mm 10 days | 88mm 10 days | 100mm 10 days | 112mm 10 days | 99mm 11 days | 115mm 11 days | 115mm 10 days | 123mm 10 days | 107mm 9 days | 92mm 9 days | 77mm 6 days | 104mm 10 days |
| Sunshine | 5.5h ☀︎ 57% | 6.6h ☀︎ 62% | 7.8h ☀︎ 65% | 8.2h ☀︎ 61% | 8.9h ☀︎ 62% | 11.0h ☀︎ 73% | 11.4h ☀︎ 78% | 10.6h ☀︎ 77% | 8.8h ☀︎ 71% | 7.6h ☀︎ 69% | 7.1h ☀︎ 72% | 5.0h ☀︎ 54% |
| Wind | W · 19 km/h | W · 19 km/h | W · 19 km/h | W · 20 km/h | W · 17 km/h | W · 16 km/h | W · 14 km/h | W · 14 km/h | N · 15 km/h | W · 16 km/h | W · 17 km/h | W · 17 km/h |
| Humidity (%) | 67% | 68% | 65% | 66% | 69% | 68% | 70% | 72% | 72% | 73% | 70% | 73% |
| Day length | 9.7h | 10.7h | 12.0h | 13.3h | 14.5h | 15.0h | 14.7h | 13.7h | 12.4h | 11.1h | 9.9h | 9.3h |