Daily rainfall, frost and wind for Colchester against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
CO1 1PJ · 1 Feb 2026 – 28 Feb 2026
Rainfall over this period was 194% 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
194%
97 mm vs 50 mm typical
Rain days >5mm
8
typical: 2.9
Frost days
2
typical: 5.2
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Feb 2026 | 1.9 | 4.7 | 8.5 | 16 | |
| 2 Feb 2026 | 0.9 | 4.7 | 8.6 | 27 | |
| 3 Feb 2026 | 3.4 | 3.5 | 5.7 | 27 | |
| 4 Feb 2026 | 9.2 | 3.3 | 9.5 | 27 | wet |
| 5 Feb 2026 | 6.3 | 5.3 | 7.7 | 29 | wet |
| 6 Feb 2026 | 5.6 | 7.2 | 10.0 | 21 | wet |
| 7 Feb 2026 | 1.7 | 5.9 | 9.9 | 27 | |
| 8 Feb 2026 | 2.5 | 5.7 | 10.7 | 19 | |
| 9 Feb 2026 | 2.5 | 5.9 | 8.7 | 23 | |
| 10 Feb 2026 | 5.8 | 6.5 | 10.7 | 19 | wet |
| 11 Feb 2026 | 8.9 | 7.4 | 11.8 | 32 | wet |
| 12 Feb 2026 | 1.4 | 4.4 | 9.5 | 25 | |
| 13 Feb 2026 | 0.6 | 3.8 | 7.5 | 25 | |
| 14 Feb 2026 | 0.0 | 0.3 | 5.2 | 23 | |
| 15 Feb 2026 | 15.4 | 1.4 | 5.7 | 30 | wet |
| 16 Feb 2026 | 3.8 | 3.7 | 8.0 | 36 | |
| 17 Feb 2026 | 0.2 | -0.4 | 5.6 | 30 | frost |
| 18 Feb 2026 | 3.2 | -0.9 | 5.4 | 38 | frost |
| 19 Feb 2026 | 7.2 | 4.1 | 5.8 | 34 | wet |
| 20 Feb 2026 | 2.5 | 2.3 | 10.1 | 38 | |
| 21 Feb 2026 | 2.1 | 8.0 | 13.2 | 32 | |
| 22 Feb 2026 | 1.2 | 9.3 | 13.3 | 31 | |
| 23 Feb 2026 | 1.1 | 8.1 | 11.9 | 37 | |
| 24 Feb 2026 | 0.1 | 9.5 | 15.3 | 28 | |
| 25 Feb 2026 | 0.0 | 8.4 | 16.8 | 17 | |
| 26 Feb 2026 | 0.0 | 8.5 | 13.7 | 38 | |
| 27 Feb 2026 | 7.1 | 9.7 | 12.9 | 28 | wet |
| 28 Feb 2026 | 2.5 | 3.9 | 9.7 | 33 |
8 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.
Need this for your exact site and dates?
Run the free tool with your postcode and claim period — print-ready evidence in seconds.
Check your site's dates