Daily rainfall, frost and wind for Wigan against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
WN1 1XL · 1 May 2026 – 31 May 2026
Rainfall over this period was 138% 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
138%
95 mm vs 69 mm typical
Rain days >5mm
5
typical: 4.2
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 May 2026 | 4.7 | 9.5 | 19.1 | 21 | |
| 2 May 2026 | 3.1 | 7.0 | 15.8 | 14 | |
| 3 May 2026 | 8.7 | 9.6 | 12.7 | 19 | wet |
| 4 May 2026 | 0.4 | 8.0 | 13.5 | 19 | |
| 5 May 2026 | 0.9 | 6.2 | 12.0 | 20 | |
| 6 May 2026 | 0.0 | 5.9 | 11.6 | 17 | |
| 7 May 2026 | 0.1 | 5.9 | 13.6 | 22 | |
| 8 May 2026 | 3.0 | 7.5 | 15.9 | 17 | |
| 9 May 2026 | 9.1 | 7.3 | 15.1 | 25 | wet |
| 10 May 2026 | 0.0 | 5.0 | 12.2 | 23 | |
| 11 May 2026 | 1.4 | 6.1 | 10.6 | 23 | |
| 12 May 2026 | 3.0 | 5.2 | 11.3 | 38 | |
| 13 May 2026 | 12.9 | 5.8 | 11.0 | 37 | wet |
| 14 May 2026 | 3.2 | 3.7 | 11.2 | 31 | |
| 15 May 2026 | 0.1 | 4.6 | 10.3 | 25 | |
| 16 May 2026 | 4.3 | 5.2 | 10.1 | 18 | |
| 17 May 2026 | 2.6 | 7.0 | 12.5 | 25 | |
| 18 May 2026 | 3.5 | 6.3 | 13.9 | 20 | |
| 19 May 2026 | 14.1 | 9.3 | 15.5 | 30 | wet |
| 20 May 2026 | 3.8 | 9.9 | 15.1 | 30 | |
| 21 May 2026 | 2.1 | 9.8 | 18.9 | 23 | |
| 22 May 2026 | 0.1 | 13.2 | 23.3 | 23 | |
| 23 May 2026 | 0.7 | 12.0 | 18.6 | 17 | |
| 24 May 2026 | 0.0 | 10.5 | 21.5 | 12 | |
| 25 May 2026 | 0.0 | 13.9 | 28.7 | 13 | |
| 26 May 2026 | 0.0 | 16.9 | 27.5 | 23 | |
| 27 May 2026 | 0.0 | 13.3 | 22.7 | 26 | |
| 28 May 2026 | 10.9 | 11.9 | 25.7 | 28 | wet |
| 29 May 2026 | 0.1 | 12.8 | 19.3 | 25 | |
| 30 May 2026 | 0.1 | 10.7 | 20.4 | 17 | |
| 31 May 2026 | 2.3 | 12.8 | 16.7 | 25 |
5 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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