Daily rainfall, frost and wind for Brighton against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
BN1 1UG · 1 Dec 2024 – 31 Dec 2024
Rainfall over this period was 47% of the 10-year average for the same calendar window at this location. Conditions were drier than typical for the time of year. 7 days had gusts at or above 47 mph.
Rainfall vs 10-yr avg
47%
52 mm vs 109 mm typical
Rain days >5mm
2
typical: 7.9
Frost days
0
typical: 2.5
High-wind days
7
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Dec 2024 | 3.7 | 10.9 | 13.2 | 33 | |
| 2 Dec 2024 | 1.0 | 7.2 | 11.9 | 31 | |
| 3 Dec 2024 | 0.0 | 3.3 | 7.6 | 16 | |
| 4 Dec 2024 | 0.6 | 0.8 | 10.6 | 34 | |
| 5 Dec 2024 | 15.3 | 10.1 | 13.3 | 54 | wet · wind |
| 6 Dec 2024 | 1.9 | 6.1 | 11.3 | 45 | |
| 7 Dec 2024 | 4.1 | 6.7 | 13.0 | 57 | wind |
| 8 Dec 2024 | 0.8 | 6.7 | 7.9 | 49 | wind |
| 9 Dec 2024 | 2.9 | 6.7 | 8.0 | 38 | |
| 10 Dec 2024 | 0.5 | 6.6 | 7.2 | 32 | |
| 11 Dec 2024 | 0.1 | 6.3 | 7.3 | 27 | |
| 12 Dec 2024 | 0.1 | 5.0 | 6.5 | 20 | |
| 13 Dec 2024 | 0.0 | 3.5 | 6.2 | 16 | |
| 14 Dec 2024 | 0.0 | 3.9 | 7.8 | 22 | |
| 15 Dec 2024 | 0.0 | 5.1 | 12.2 | 28 | |
| 16 Dec 2024 | 0.0 | 9.1 | 11.3 | 30 | |
| 17 Dec 2024 | 0.7 | 8.4 | 10.5 | 29 | |
| 18 Dec 2024 | 8.3 | 10.8 | 12.9 | 54 | wet · wind |
| 19 Dec 2024 | 0.9 | 4.6 | 12.3 | 50 | wind |
| 20 Dec 2024 | 1.8 | 3.0 | 9.6 | 34 | |
| 21 Dec 2024 | 1.4 | 5.3 | 12.1 | 49 | wind |
| 22 Dec 2024 | 0.7 | 4.9 | 8.2 | 44 | |
| 23 Dec 2024 | 2.0 | 4.0 | 7.3 | 43 | |
| 24 Dec 2024 | 0.4 | 7.7 | 11.7 | 17 | |
| 25 Dec 2024 | 0.0 | 8.0 | 10.1 | 15 | |
| 26 Dec 2024 | 0.0 | 7.7 | 9.1 | 10 | |
| 27 Dec 2024 | 0.0 | 4.4 | 7.7 | 11 | |
| 28 Dec 2024 | 0.0 | 4.0 | 6.2 | 11 | |
| 29 Dec 2024 | 0.0 | 4.6 | 8.5 | 17 | |
| 30 Dec 2024 | 0.1 | 7.6 | 9.6 | 24 | |
| 31 Dec 2024 | 4.3 | 8.3 | 10.6 | 48 | wind |
2 days with rainfall over 5 mm in this period.
Data: ERA5 reanalysis via Open-Meteo, taken at the nearest model grid point to the postcode — not a Met Office station record. Baselines are the mean of the same calendar months over the previous 10 years at this location. Whether conditions meet a contractual test (e.g. JCT “exceptionally adverse weather” or an NEC 1-in-10-year event) is a matter for the contract — this is a factual weather record, not advice.
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