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 Jan 2025 – 31 Jan 2025
Rainfall over this period was 152% of the 10-year average for the same calendar window at this location. Conditions were materially wetter than typical for the time of year. 4 days had gusts at or above 47 mph.
Rainfall vs 10-yr avg
152%
114 mm vs 75 mm typical
Rain days >5mm
9
typical: 5.4
Frost days
7
typical: 8.8
High-wind days
4
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Jan 2025 | 12.9 | 4.5 | 11.2 | 50 | wet · wind |
| 2 Jan 2025 | 0.0 | -0.4 | 3.9 | 15 | frost |
| 3 Jan 2025 | 0.0 | -0.8 | 4.0 | 13 | frost |
| 4 Jan 2025 | 6.5 | -1.6 | 2.5 | 28 | wet · frost |
| 5 Jan 2025 | 9.7 | 1.0 | 12.2 | 43 | wet |
| 6 Jan 2025 | 10.8 | 2.6 | 11.6 | 40 | wet |
| 7 Jan 2025 | 0.9 | 0.6 | 4.9 | 29 | |
| 8 Jan 2025 | 1.7 | -0.2 | 2.2 | 18 | frost |
| 9 Jan 2025 | 0.0 | -2.8 | 4.0 | 18 | frost |
| 10 Jan 2025 | 0.1 | -2.4 | 2.3 | 16 | frost |
| 11 Jan 2025 | 0.0 | -2.7 | 3.2 | 14 | frost |
| 12 Jan 2025 | 0.0 | 1.7 | 6.8 | 19 | |
| 13 Jan 2025 | 0.0 | 2.3 | 6.0 | 27 | |
| 14 Jan 2025 | 0.0 | 3.3 | 9.9 | 18 | |
| 15 Jan 2025 | 0.0 | 3.1 | 8.7 | 16 | |
| 16 Jan 2025 | 0.0 | 0.2 | 7.3 | 14 | |
| 17 Jan 2025 | 0.0 | 2.4 | 7.2 | 17 | |
| 18 Jan 2025 | 0.0 | 2.0 | 4.5 | 14 | |
| 19 Jan 2025 | 0.0 | 1.1 | 3.8 | 15 | |
| 20 Jan 2025 | 1.2 | 0.6 | 7.0 | 14 | |
| 21 Jan 2025 | 0.0 | 1.2 | 5.9 | 17 | |
| 22 Jan 2025 | 0.3 | 2.5 | 5.3 | 14 | |
| 23 Jan 2025 | 4.9 | 2.1 | 7.8 | 41 | |
| 24 Jan 2025 | 10.6 | 5.9 | 10.7 | 63 | wet · wind |
| 25 Jan 2025 | 1.1 | 1.5 | 6.7 | 20 | |
| 26 Jan 2025 | 26.0 | 2.5 | 8.3 | 56 | wet · wind |
| 27 Jan 2025 | 14.5 | 5.7 | 8.4 | 55 | wet · wind |
| 28 Jan 2025 | 6.8 | 6.0 | 9.1 | 47 | wet |
| 29 Jan 2025 | 0.0 | 2.5 | 7.0 | 26 | |
| 30 Jan 2025 | 0.0 | 1.3 | 7.1 | 23 | |
| 31 Jan 2025 | 6.3 | 2.2 | 9.5 | 28 | wet |
9 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.
Need this for your exact site and dates?
Run the free tool with your postcode and claim period — print-ready evidence in seconds.
Check your site's dates