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 2025 – 28 Feb 2025
Rainfall over this period was 76% of the 10-year average for the same calendar window at this location. Conditions were broadly in line with typical for the time of year. 2 days had gusts at or above 47 mph.
Rainfall vs 10-yr avg
76%
58 mm vs 76 mm typical
Rain days >5mm
4
typical: 4.8
Frost days
2
typical: 2.0
High-wind days
2
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Feb 2025 | 0.0 | 1.5 | 8.4 | 38 | |
| 2 Feb 2025 | 0.9 | 4.5 | 9.0 | 38 | |
| 3 Feb 2025 | 1.1 | 5.1 | 10.8 | 37 | |
| 4 Feb 2025 | 5.8 | 4.1 | 10.4 | 42 | wet |
| 5 Feb 2025 | 0.0 | 2.1 | 7.3 | 28 | |
| 6 Feb 2025 | 0.0 | -0.7 | 7.7 | 21 | frost |
| 7 Feb 2025 | 0.3 | 1.3 | 5.9 | 30 | |
| 8 Feb 2025 | 0.9 | 2.6 | 5.3 | 20 | |
| 9 Feb 2025 | 0.0 | 2.7 | 7.1 | 30 | |
| 10 Feb 2025 | 0.8 | 3.7 | 5.3 | 35 | |
| 11 Feb 2025 | 1.4 | 3.7 | 5.5 | 30 | |
| 12 Feb 2025 | 2.0 | 4.3 | 5.5 | 29 | |
| 13 Feb 2025 | 0.0 | 3.8 | 4.9 | 34 | |
| 14 Feb 2025 | 1.8 | 2.9 | 4.6 | 35 | |
| 15 Feb 2025 | 0.4 | 4.2 | 6.6 | 20 | |
| 16 Feb 2025 | 2.4 | 4.2 | 5.5 | 29 | |
| 17 Feb 2025 | 1.5 | 3.9 | 5.6 | 30 | |
| 18 Feb 2025 | 1.7 | 4.5 | 6.2 | 31 | |
| 19 Feb 2025 | 8.5 | 4.6 | 9.5 | 43 | wet |
| 20 Feb 2025 | 3.9 | 9.4 | 12.2 | 46 | |
| 21 Feb 2025 | 10.1 | 8.3 | 12.0 | 59 | wet · wind |
| 22 Feb 2025 | 0.1 | 6.0 | 11.0 | 36 | |
| 23 Feb 2025 | 9.8 | 6.2 | 12.6 | 60 | wet · wind |
| 24 Feb 2025 | 0.3 | 4.9 | 10.5 | 36 | |
| 25 Feb 2025 | 0.0 | 3.1 | 8.4 | 33 | |
| 26 Feb 2025 | 3.9 | 2.1 | 7.4 | 23 | |
| 27 Feb 2025 | 0.3 | 1.5 | 8.7 | 19 | |
| 28 Feb 2025 | 0.0 | 0.0 | 9.2 | 26 | frost |
4 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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