Daily rainfall, frost and wind for Bolton against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
BL1 1RU · 1 Feb 2026 – 28 Feb 2026
Rainfall over this period was 104% 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.
Rainfall vs 10-yr avg
104%
124 mm vs 119 mm typical
Rain days >5mm
11
typical: 8.6
Frost days
4
typical: 6.9
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Feb 2026 | 1.9 | 3.6 | 7.3 | 13 | |
| 2 Feb 2026 | 0.0 | 3.1 | 6.7 | 33 | |
| 3 Feb 2026 | 0.1 | 0.8 | 3.5 | 36 | |
| 4 Feb 2026 | 2.4 | 0.9 | 6.0 | 34 | |
| 5 Feb 2026 | 3.7 | 1.5 | 4.5 | 44 | |
| 6 Feb 2026 | 16.0 | 1.5 | 4.2 | 38 | wet |
| 7 Feb 2026 | 9.7 | 4.0 | 7.5 | 27 | wet |
| 8 Feb 2026 | 2.3 | 4.7 | 9.1 | 21 | |
| 9 Feb 2026 | 0.5 | 4.5 | 8.8 | 24 | |
| 10 Feb 2026 | 5.8 | 5.4 | 7.3 | 24 | wet |
| 11 Feb 2026 | 9.1 | 5.8 | 8.1 | 19 | wet |
| 12 Feb 2026 | 3.4 | 2.2 | 6.5 | 23 | |
| 13 Feb 2026 | 5.2 | -0.6 | 2.3 | 34 | wet · frost |
| 14 Feb 2026 | 0.0 | -2.3 | 4.5 | 21 | frost |
| 15 Feb 2026 | 8.0 | 0.6 | 6.1 | 32 | wet |
| 16 Feb 2026 | 4.7 | 2.2 | 5.7 | 35 | |
| 17 Feb 2026 | 0.0 | -0.9 | 3.2 | 32 | frost |
| 18 Feb 2026 | 0.1 | -0.2 | 4.4 | 46 | frost |
| 19 Feb 2026 | 1.9 | 1.4 | 4.4 | 32 | |
| 20 Feb 2026 | 5.7 | 3.0 | 7.8 | 32 | wet |
| 21 Feb 2026 | 12.4 | 6.9 | 12.1 | 31 | wet |
| 22 Feb 2026 | 7.4 | 7.1 | 10.9 | 34 | wet |
| 23 Feb 2026 | 5.4 | 6.3 | 8.9 | 40 | wet |
| 24 Feb 2026 | 0.9 | 8.5 | 12.7 | 31 | |
| 25 Feb 2026 | 2.2 | 5.8 | 12.4 | 28 | |
| 26 Feb 2026 | 10.7 | 8.8 | 10.0 | 36 | wet |
| 27 Feb 2026 | 3.4 | 6.4 | 9.6 | 19 | |
| 28 Feb 2026 | 0.8 | 2.9 | 6.6 | 21 |
11 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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