Daily rainfall, frost and wind for Ipswich against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
IP1 1DH · 1 Dec 2025 – 31 Dec 2025
Rainfall over this period was 69% of the 10-year average for the same calendar window at this location. Conditions were drier than typical for the time of year.
Rainfall vs 10-yr avg
69%
45 mm vs 65 mm typical
Rain days >5mm
3
typical: 5.0
Frost days
2
typical: 4.8
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Dec 2025 | 2.8 | 3.5 | 10.6 | 44 | |
| 2 Dec 2025 | 1.6 | 7.4 | 10.4 | 43 | |
| 3 Dec 2025 | 0.1 | 4.0 | 9.0 | 17 | |
| 4 Dec 2025 | 3.7 | 4.1 | 8.5 | 32 | |
| 5 Dec 2025 | 1.9 | -0.2 | 8.1 | 46 | frost |
| 6 Dec 2025 | 0.9 | 7.7 | 12.0 | 43 | |
| 7 Dec 2025 | 5.2 | 6.4 | 13.8 | 39 | wet |
| 8 Dec 2025 | 0.2 | 9.3 | 13.9 | 31 | |
| 9 Dec 2025 | 11.9 | 11.0 | 14.2 | 35 | wet |
| 10 Dec 2025 | 0.2 | 8.2 | 12.8 | 31 | |
| 11 Dec 2025 | 0.0 | 6.5 | 11.0 | 25 | |
| 12 Dec 2025 | 0.0 | 7.5 | 11.8 | 21 | |
| 13 Dec 2025 | 0.0 | 2.9 | 9.0 | 19 | |
| 14 Dec 2025 | 0.0 | 5.5 | 10.3 | 30 | |
| 15 Dec 2025 | 0.1 | 9.0 | 10.3 | 30 | |
| 16 Dec 2025 | 0.7 | 7.9 | 11.7 | 18 | |
| 17 Dec 2025 | 0.0 | 1.4 | 9.0 | 31 | |
| 18 Dec 2025 | 14.3 | 9.2 | 12.2 | 43 | wet |
| 19 Dec 2025 | 0.1 | 5.4 | 11.0 | 29 | |
| 20 Dec 2025 | 0.0 | 3.3 | 9.0 | 17 | |
| 21 Dec 2025 | 1.3 | 7.4 | 10.5 | 21 | |
| 22 Dec 2025 | 0.1 | 6.6 | 10.3 | 17 | |
| 23 Dec 2025 | 0.0 | 5.6 | 7.7 | 27 | |
| 24 Dec 2025 | 0.0 | 3.8 | 6.1 | 40 | |
| 25 Dec 2025 | 0.0 | 3.3 | 5.1 | 34 | |
| 26 Dec 2025 | 0.0 | 2.9 | 5.8 | 25 | |
| 27 Dec 2025 | 0.0 | 3.0 | 7.9 | 33 | |
| 28 Dec 2025 | 0.0 | 3.5 | 7.7 | 23 | |
| 29 Dec 2025 | 0.0 | 3.2 | 6.5 | 22 | |
| 30 Dec 2025 | 0.0 | 2.0 | 6.2 | 17 | |
| 31 Dec 2025 | 0.0 | -0.2 | 3.2 | 21 | frost |
3 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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