Daily rainfall, frost and wind for Bristol against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
BS1 4DJ · 1 Apr 2025 – 30 Apr 2025
Rainfall over this period was 91% of the 10-year average for the same calendar window at this location. Conditions were broadly in line with typical for the time of year. 1 day had gusts at or above 47 mph.
Rainfall vs 10-yr avg
91%
50 mm vs 55 mm typical
Rain days >5mm
4
typical: 3.7
Frost days
0
typical: 2.1
High-wind days
1
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Apr 2025 | 0.0 | 3.5 | 14.0 | 29 | |
| 2 Apr 2025 | 0.0 | 4.7 | 14.9 | 36 | |
| 3 Apr 2025 | 0.4 | 6.4 | 17.5 | 33 | |
| 4 Apr 2025 | 0.6 | 9.9 | 19.9 | 30 | |
| 5 Apr 2025 | 0.0 | 5.9 | 16.5 | 30 | |
| 6 Apr 2025 | 0.0 | 3.6 | 15.1 | 24 | |
| 7 Apr 2025 | 0.0 | 2.5 | 14.4 | 18 | |
| 8 Apr 2025 | 0.0 | 2.5 | 14.4 | 17 | |
| 9 Apr 2025 | 0.0 | 3.2 | 14.3 | 21 | |
| 10 Apr 2025 | 0.0 | 2.7 | 14.6 | 17 | |
| 11 Apr 2025 | 0.0 | 5.2 | 19.8 | 15 | |
| 12 Apr 2025 | 0.0 | 7.7 | 19.8 | 22 | |
| 13 Apr 2025 | 0.2 | 7.3 | 13.3 | 29 | |
| 14 Apr 2025 | 1.2 | 5.4 | 13.5 | 34 | |
| 15 Apr 2025 | 7.9 | 8.3 | 14.3 | 29 | wet |
| 16 Apr 2025 | 4.0 | 5.6 | 12.3 | 52 | wind |
| 17 Apr 2025 | 1.0 | 2.9 | 14.0 | 24 | |
| 18 Apr 2025 | 8.3 | 7.8 | 11.2 | 39 | wet |
| 19 Apr 2025 | 4.3 | 9.5 | 16.7 | 35 | |
| 20 Apr 2025 | 1.8 | 4.3 | 14.7 | 23 | |
| 21 Apr 2025 | 6.0 | 8.5 | 13.5 | 29 | wet |
| 22 Apr 2025 | 1.6 | 6.8 | 14.2 | 30 | |
| 23 Apr 2025 | 11.1 | 8.3 | 13.8 | 36 | wet |
| 24 Apr 2025 | 0.2 | 5.9 | 15.0 | 15 | |
| 25 Apr 2025 | 0.1 | 7.1 | 14.7 | 22 | |
| 26 Apr 2025 | 1.2 | 8.1 | 15.0 | 14 | |
| 27 Apr 2025 | 0.0 | 7.6 | 17.7 | 18 | |
| 28 Apr 2025 | 0.0 | 7.3 | 20.2 | 11 | |
| 29 Apr 2025 | 0.0 | 9.2 | 23.4 | 19 | |
| 30 Apr 2025 | 0.0 | 9.0 | 25.1 | 15 |
4 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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