Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Harpenden is from June, July, August. — consistent weather climate
🌥Mild
| Score | 12 | 13 | 20 | 42 | 62 | 81 | 81 | 82 | 81 | 44 | 22 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Cold | Mild | Mild | Mild | Mild | Mild | Mild | Cold | Cold |
| Temperature | 2–7°C | 3–9°C | 4–10°C | 4–13°C | 8–16°C | 11–20°C | 13–21°C | 13–22°C | 11–19°C | 9–15°C | 5–10°C | 4–8°C |
| Feels like | -2–3°C | -1–5°C | 0–6°C | 1–9°C | 5–14°C | 9–19°C | 11–20°C | 12–20°C | 10–18°C | 6–13°C | 2–7°C | 0–4°C |
| Precipitation | 66mm 10 days | 61mm 11 days | 64mm 13 days | 40mm 10 days | 66mm 12 days | 60mm 11 days | 70mm 13 days | 55mm 10 days | 72mm 10 days | 99mm 13 days | 65mm 10 days | 75mm 12 days |
| Sunshine | 3.8h ☀︎ 46% | 4.0h ☀︎ 40% | 5.5h ☀︎ 47% | 9.3h ☀︎ 67% | 9.8h ☀︎ 62% | 11.3h ☀︎ 68% | 10.3h ☀︎ 64% | 9.6h ☀︎ 66% | 7.5h ☀︎ 60% | 5.1h ☀︎ 48% | 3.7h ☀︎ 42% | 2.1h ☀︎ 26% |
| Wind | W · 24 km/h | SW · 28 km/h | SW · 24 km/h | NE · 21 km/h | W · 21 km/h | W · 20 km/h | W · 20 km/h | W · 21 km/h | W · 20 km/h | SW · 23 km/h | SW · 23 km/h | SW · 24 km/h |
| Humidity (%) | 88% | 84% | 81% | 73% | 74% | 72% | 73% | 74% | 79% | 85% | 89% | 90% |
| Day length | 8.4h | 10.0h | 11.9h | 13.9h | 15.7h | 16.6h | 16.1h | 14.6h | 12.6h | 10.6h | 8.8h | 7.9h |