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 Mar 2026 – 31 Mar 2026
Rainfall over this period was 107% 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. 2 days had gusts at or above 47 mph.
Rainfall vs 10-yr avg
107%
118 mm vs 110 mm typical
Rain days >5mm
10
typical: 8.8
Frost days
1
typical: 5.2
High-wind days
2
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Mar 2026 | 1.8 | 3.4 | 11.9 | 34 | |
| 2 Mar 2026 | 2.4 | 6.8 | 11.5 | 33 | |
| 3 Mar 2026 | 0.0 | 2.9 | 9.8 | 15 | |
| 4 Mar 2026 | 0.0 | 5.3 | 12.7 | 21 | |
| 5 Mar 2026 | 0.6 | 6.0 | 14.2 | 21 | |
| 6 Mar 2026 | 7.1 | 4.1 | 6.6 | 15 | wet |
| 7 Mar 2026 | 0.0 | 4.1 | 7.5 | 19 | |
| 8 Mar 2026 | 0.2 | 4.3 | 10.2 | 19 | |
| 9 Mar 2026 | 0.8 | 6.9 | 9.8 | 18 | |
| 10 Mar 2026 | 1.4 | 3.8 | 9.9 | 33 | |
| 11 Mar 2026 | 3.6 | 5.4 | 9.0 | 41 | |
| 12 Mar 2026 | 11.5 | 5.8 | 11.3 | 52 | wet · wind |
| 13 Mar 2026 | 10.7 | 2.1 | 6.2 | 39 | wet |
| 14 Mar 2026 | 0.5 | 1.6 | 7.7 | 22 | |
| 15 Mar 2026 | 7.1 | 2.1 | 8.1 | 34 | wet |
| 16 Mar 2026 | 10.8 | 1.3 | 8.5 | 29 | wet |
| 17 Mar 2026 | 0.2 | 8.3 | 14.1 | 36 | |
| 18 Mar 2026 | 0.0 | 4.7 | 16.8 | 18 | |
| 19 Mar 2026 | 0.0 | 5.6 | 14.7 | 18 | |
| 20 Mar 2026 | 0.0 | 4.7 | 12.1 | 13 | |
| 21 Mar 2026 | 0.0 | 3.5 | 14.0 | 11 | |
| 22 Mar 2026 | 0.2 | 3.3 | 10.6 | 19 | |
| 23 Mar 2026 | 0.0 | 2.4 | 9.2 | 17 | |
| 24 Mar 2026 | 18.7 | 4.2 | 10.9 | 45 | wet |
| 25 Mar 2026 | 10.8 | 2.3 | 4.9 | 47 | wet |
| 26 Mar 2026 | 0.2 | -1.3 | 7.0 | 23 | frost |
| 27 Mar 2026 | 7.5 | 4.6 | 9.1 | 30 | wet |
| 28 Mar 2026 | 7.6 | 1.5 | 6.6 | 44 | wet |
| 29 Mar 2026 | 9.0 | 2.9 | 9.3 | 49 | wet · wind |
| 30 Mar 2026 | 4.4 | 4.6 | 8.8 | 47 | |
| 31 Mar 2026 | 1.3 | 6.8 | 12.9 | 28 |
10 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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