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 Jun 2025 – 30 Jun 2025
Rainfall over this period was 170% of the 10-year average for the same calendar window at this location. Conditions were materially wetter than typical for the time of year.
Rainfall vs 10-yr avg
170%
187 mm vs 110 mm typical
Rain days >5mm
12
typical: 7.3
Frost days
0
typical: 0.0
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Jun 2025 | 3.1 | 9.4 | 14.6 | 35 | |
| 2 Jun 2025 | 0.8 | 9.0 | 15.8 | 27 | |
| 3 Jun 2025 | 11.6 | 9.6 | 14.1 | 34 | wet |
| 4 Jun 2025 | 2.2 | 7.9 | 14.3 | 32 | |
| 5 Jun 2025 | 12.6 | 9.8 | 14.9 | 23 | wet |
| 6 Jun 2025 | 10.1 | 8.9 | 13.0 | 27 | wet |
| 7 Jun 2025 | 4.9 | 8.2 | 12.4 | 25 | |
| 8 Jun 2025 | 3.7 | 7.7 | 13.3 | 31 | |
| 9 Jun 2025 | 10.6 | 9.2 | 14.3 | 26 | wet |
| 10 Jun 2025 | 8.2 | 9.2 | 14.6 | 32 | wet |
| 11 Jun 2025 | 0.0 | 6.5 | 22.5 | 28 | |
| 12 Jun 2025 | 4.6 | 11.7 | 21.7 | 37 | |
| 13 Jun 2025 | 5.4 | 14.0 | 21.0 | 33 | wet |
| 14 Jun 2025 | 53.7 | 12.8 | 18.6 | 33 | wet |
| 15 Jun 2025 | 1.2 | 12.0 | 16.8 | 29 | |
| 16 Jun 2025 | 0.1 | 12.2 | 20.9 | 22 | |
| 17 Jun 2025 | 1.1 | 11.5 | 19.3 | 25 | |
| 18 Jun 2025 | 0.0 | 12.3 | 19.2 | 19 | |
| 19 Jun 2025 | 0.0 | 9.5 | 24.1 | 16 | |
| 20 Jun 2025 | 0.0 | 15.3 | 26.2 | 21 | |
| 21 Jun 2025 | 14.9 | 16.9 | 25.5 | 25 | wet |
| 22 Jun 2025 | 8.0 | 13.0 | 18.3 | 32 | wet |
| 23 Jun 2025 | 5.1 | 10.3 | 15.2 | 41 | wet |
| 24 Jun 2025 | 10.8 | 13.3 | 18.1 | 38 | wet |
| 25 Jun 2025 | 2.2 | 14.1 | 20.3 | 23 | |
| 26 Jun 2025 | 6.7 | 13.4 | 17.6 | 36 | wet |
| 27 Jun 2025 | 0.8 | 11.4 | 22.2 | 35 | |
| 28 Jun 2025 | 2.3 | 16.5 | 21.7 | 36 | |
| 29 Jun 2025 | 1.3 | 14.7 | 21.5 | 18 | |
| 30 Jun 2025 | 0.5 | 14.9 | 25.2 | 20 |
12 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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