Daily rainfall, frost and wind for Preston against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
PR1 2AP · 1 Sept 2025 – 30 Sept 2025
Rainfall over this period was 172% 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
172%
220 mm vs 127 mm typical
Rain days >5mm
15
typical: 8.4
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 Sept 2025 | 7.9 | 13.2 | 18.1 | 29 | wet |
| 2 Sept 2025 | 9.1 | 11.1 | 19.3 | 19 | wet |
| 3 Sept 2025 | 6.0 | 13.6 | 18.0 | 29 | wet |
| 4 Sept 2025 | 15.5 | 12.2 | 16.4 | 23 | wet |
| 5 Sept 2025 | 1.3 | 12.1 | 17.5 | 25 | |
| 6 Sept 2025 | 0.0 | 11.9 | 20.3 | 31 | |
| 7 Sept 2025 | 5.5 | 14.3 | 19.7 | 34 | wet |
| 8 Sept 2025 | 1.6 | 11.1 | 17.5 | 21 | |
| 9 Sept 2025 | 0.0 | 9.5 | 18.8 | 24 | |
| 10 Sept 2025 | 8.5 | 13.3 | 18.6 | 33 | wet |
| 11 Sept 2025 | 19.1 | 9.7 | 14.3 | 32 | wet |
| 12 Sept 2025 | 13.5 | 9.8 | 15.1 | 33 | wet |
| 13 Sept 2025 | 11.0 | 9.9 | 15.0 | 32 | wet |
| 14 Sept 2025 | 5.1 | 9.9 | 14.4 | 42 | wet |
| 15 Sept 2025 | 30.8 | 12.5 | 14.8 | 45 | wet |
| 16 Sept 2025 | 14.5 | 12.3 | 15.8 | 37 | wet |
| 17 Sept 2025 | 15.5 | 11.4 | 20.3 | 31 | wet |
| 18 Sept 2025 | 2.3 | 12.9 | 18.9 | 27 | |
| 19 Sept 2025 | 1.7 | 16.6 | 19.7 | 30 | |
| 20 Sept 2025 | 41.2 | 9.1 | 16.1 | 28 | wet |
| 21 Sept 2025 | 3.8 | 6.1 | 12.7 | 23 | |
| 22 Sept 2025 | 0.0 | 2.0 | 13.3 | 17 | |
| 23 Sept 2025 | 0.0 | 3.1 | 14.8 | 13 | |
| 24 Sept 2025 | 0.0 | 6.4 | 16.2 | 16 | |
| 25 Sept 2025 | 0.0 | 7.3 | 17.1 | 18 | |
| 26 Sept 2025 | 0.0 | 6.8 | 16.1 | 23 | |
| 27 Sept 2025 | 5.3 | 10.0 | 15.1 | 30 | wet |
| 28 Sept 2025 | 0.2 | 9.3 | 15.4 | 21 | |
| 29 Sept 2025 | 0.1 | 4.9 | 14.6 | 10 | |
| 30 Sept 2025 | 0.3 | 8.8 | 16.8 | 14 |
15 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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