Daily rainfall, frost and wind for Belfast against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
BT1 5GS · 1 Feb 2026 – 28 Feb 2026
Rainfall over this period was 157% of the 10-year average for the same calendar window at this location. Conditions were materially wetter than typical for the time of year. 1 day had gusts at or above 47 mph.
Rainfall vs 10-yr avg
157%
119 mm vs 76 mm typical
Rain days >5mm
8
typical: 4.8
Frost days
3
typical: 2.0
High-wind days
1
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Feb 2026 | 2.8 | 2.3 | 7.4 | 22 | |
| 2 Feb 2026 | 0.8 | 0.1 | 7.7 | 36 | |
| 3 Feb 2026 | 4.2 | 3.4 | 5.9 | 41 | |
| 4 Feb 2026 | 2.7 | 3.3 | 6.5 | 27 | |
| 5 Feb 2026 | 12.9 | 4.6 | 5.9 | 49 | wet · wind |
| 6 Feb 2026 | 15.4 | 3.9 | 5.5 | 41 | wet |
| 7 Feb 2026 | 5.0 | 5.4 | 7.6 | 25 | |
| 8 Feb 2026 | 2.3 | 4.0 | 8.1 | 17 | |
| 9 Feb 2026 | 2.7 | 2.7 | 8.0 | 22 | |
| 10 Feb 2026 | 9.9 | 6.6 | 7.3 | 26 | wet |
| 11 Feb 2026 | 7.2 | 5.4 | 6.8 | 25 | wet |
| 12 Feb 2026 | 9.3 | 3.2 | 5.2 | 32 | wet |
| 13 Feb 2026 | 2.0 | 0.2 | 4.0 | 34 | |
| 14 Feb 2026 | 2.6 | -3.2 | 4.9 | 42 | frost |
| 15 Feb 2026 | 7.1 | 2.9 | 8.3 | 43 | wet |
| 16 Feb 2026 | 2.5 | 2.3 | 7.4 | 33 | |
| 17 Feb 2026 | 0.0 | -0.9 | 4.2 | 31 | frost |
| 18 Feb 2026 | 6.2 | 2.1 | 5.0 | 41 | wet |
| 19 Feb 2026 | 0.7 | 3.7 | 6.7 | 26 | |
| 20 Feb 2026 | 3.7 | 3.7 | 10.4 | 37 | |
| 21 Feb 2026 | 3.5 | 8.1 | 11.8 | 32 | |
| 22 Feb 2026 | 3.1 | 6.7 | 11.2 | 39 | |
| 23 Feb 2026 | 2.8 | 6.7 | 11.5 | 34 | |
| 24 Feb 2026 | 0.2 | 8.6 | 11.2 | 32 | |
| 25 Feb 2026 | 5.2 | 9.0 | 12.4 | 24 | wet |
| 26 Feb 2026 | 3.7 | 8.9 | 11.5 | 36 | |
| 27 Feb 2026 | 0.6 | 3.4 | 9.8 | 21 | |
| 28 Feb 2026 | 0.0 | -1.2 | 7.7 | 26 | frost |
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.
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