Daily rainfall, frost and wind for Portsmouth against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
PO1 2EG · 1 Feb 2025 – 28 Feb 2025
Rainfall over this period was 85% 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.
Rainfall vs 10-yr avg
85%
61 mm vs 72 mm typical
Rain days >5mm
3
typical: 5.2
Frost days
0
typical: 3.7
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Feb 2025 | 0.2 | 5.3 | 7.9 | 23 | |
| 2 Feb 2025 | 0.0 | 2.8 | 7.0 | 20 | |
| 3 Feb 2025 | 0.4 | 2.6 | 9.7 | 24 | |
| 4 Feb 2025 | 1.0 | 7.1 | 10.3 | 36 | |
| 5 Feb 2025 | 0.1 | 3.8 | 9.8 | 18 | |
| 6 Feb 2025 | 0.0 | 1.8 | 7.6 | 30 | |
| 7 Feb 2025 | 1.1 | 3.0 | 4.6 | 33 | |
| 8 Feb 2025 | 1.7 | 3.0 | 6.3 | 24 | |
| 9 Feb 2025 | 0.7 | 2.2 | 6.3 | 30 | |
| 10 Feb 2025 | 2.0 | 2.8 | 5.3 | 32 | |
| 11 Feb 2025 | 0.1 | 3.1 | 5.9 | 16 | |
| 12 Feb 2025 | 0.0 | 3.0 | 6.1 | 17 | |
| 13 Feb 2025 | 0.1 | 1.8 | 5.8 | 24 | |
| 14 Feb 2025 | 0.0 | 2.5 | 5.8 | 37 | |
| 15 Feb 2025 | 0.2 | 4.9 | 5.9 | 27 | |
| 16 Feb 2025 | 0.0 | 2.4 | 5.5 | 25 | |
| 17 Feb 2025 | 0.0 | 1.6 | 5.4 | 28 | |
| 18 Feb 2025 | 0.0 | 1.2 | 6.5 | 31 | |
| 19 Feb 2025 | 0.2 | 5.0 | 9.0 | 27 | |
| 20 Feb 2025 | 3.2 | 8.7 | 12.1 | 38 | |
| 21 Feb 2025 | 13.7 | 10.3 | 13.1 | 41 | wet |
| 22 Feb 2025 | 4.3 | 7.6 | 12.3 | 26 | |
| 23 Feb 2025 | 4.0 | 7.5 | 10.9 | 43 | |
| 24 Feb 2025 | 17.9 | 8.6 | 12.5 | 44 | wet |
| 25 Feb 2025 | 1.2 | 5.5 | 10.8 | 24 | |
| 26 Feb 2025 | 8.7 | 3.9 | 9.2 | 40 | wet |
| 27 Feb 2025 | 0.0 | 3.8 | 9.8 | 27 | |
| 28 Feb 2025 | 0.0 | 1.1 | 9.6 | 13 |
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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