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 Jan 2026 – 31 Jan 2026
Rainfall over this period was 176% 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
176%
96 mm vs 55 mm typical
Rain days >5mm
6
typical: 4.0
Frost days
9
typical: 9.2
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Jan 2026 | 0.0 | 0.0 | 5.7 | 35 | frost |
| 2 Jan 2026 | 0.0 | -1.2 | 2.6 | 32 | frost |
| 3 Jan 2026 | 0.0 | -1.9 | 1.4 | 36 | frost |
| 4 Jan 2026 | 0.0 | -3.1 | 1.1 | 26 | frost |
| 5 Jan 2026 | 1.1 | -2.9 | 0.8 | 27 | frost |
| 6 Jan 2026 | 0.9 | -4.9 | 2.0 | 26 | frost |
| 7 Jan 2026 | 2.7 | 0.9 | 5.3 | 36 | |
| 8 Jan 2026 | 12.6 | 0.3 | 5.1 | 34 | wet |
| 9 Jan 2026 | 8.6 | 2.1 | 6.0 | 34 | wet |
| 10 Jan 2026 | 1.1 | -2.2 | 3.2 | 29 | frost |
| 11 Jan 2026 | 1.9 | -2.7 | 6.1 | 39 | frost |
| 12 Jan 2026 | 0.3 | 6.9 | 10.3 | 38 | |
| 13 Jan 2026 | 8.1 | 7.1 | 10.0 | 21 | wet |
| 14 Jan 2026 | 0.8 | -0.8 | 7.2 | 19 | frost |
| 15 Jan 2026 | 16.0 | 6.4 | 8.6 | 37 | wet |
| 16 Jan 2026 | 0.2 | 3.0 | 8.9 | 31 | |
| 17 Jan 2026 | 0.4 | 5.3 | 9.5 | 17 | |
| 18 Jan 2026 | 0.1 | 6.1 | 10.0 | 17 | |
| 19 Jan 2026 | 1.6 | 5.7 | 9.8 | 20 | |
| 20 Jan 2026 | 1.4 | 6.3 | 9.2 | 31 | |
| 21 Jan 2026 | 7.0 | 5.6 | 9.3 | 38 | wet |
| 22 Jan 2026 | 4.8 | 5.8 | 8.6 | 32 | |
| 23 Jan 2026 | 2.3 | 5.9 | 7.6 | 34 | |
| 24 Jan 2026 | 0.0 | 5.0 | 7.9 | 30 | |
| 25 Jan 2026 | 1.0 | 4.5 | 6.0 | 28 | |
| 26 Jan 2026 | 0.0 | 2.8 | 4.5 | 22 | |
| 27 Jan 2026 | 17.3 | 4.3 | 7.5 | 40 | wet |
| 28 Jan 2026 | 0.0 | 1.4 | 7.7 | 17 | |
| 29 Jan 2026 | 0.3 | 2.4 | 4.5 | 19 | |
| 30 Jan 2026 | 4.9 | 4.0 | 8.7 | 32 | |
| 31 Jan 2026 | 0.5 | 5.1 | 9.4 | 29 |
6 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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