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 Nov 2024 – 30 Nov 2024
Rainfall over this period was 81% 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
81%
73 mm vs 90 mm typical
Rain days >5mm
4
typical: 6.2
Frost days
0
typical: 0.5
High-wind days
2
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Nov 2024 | 0.0 | 8.7 | 13.7 | 14 | |
| 2 Nov 2024 | 0.4 | 11.0 | 13.9 | 21 | |
| 3 Nov 2024 | 0.6 | 11.7 | 13.6 | 20 | |
| 4 Nov 2024 | 0.0 | 10.8 | 13.3 | 20 | |
| 5 Nov 2024 | 0.1 | 9.7 | 13.9 | 14 | |
| 6 Nov 2024 | 0.2 | 10.7 | 13.4 | 13 | |
| 7 Nov 2024 | 0.4 | 11.3 | 12.5 | 20 | |
| 8 Nov 2024 | 0.3 | 8.4 | 12.2 | 18 | |
| 9 Nov 2024 | 0.0 | 8.2 | 10.2 | 11 | |
| 10 Nov 2024 | 0.0 | 8.0 | 13.4 | 13 | |
| 11 Nov 2024 | 0.0 | 7.0 | 12.5 | 17 | |
| 12 Nov 2024 | 0.0 | 6.2 | 11.9 | 39 | |
| 13 Nov 2024 | 0.0 | 6.6 | 12.2 | 20 | |
| 14 Nov 2024 | 0.2 | 6.4 | 12.5 | 19 | |
| 15 Nov 2024 | 0.0 | 7.3 | 11.0 | 9 | |
| 16 Nov 2024 | 0.1 | 3.5 | 12.1 | 22 | |
| 17 Nov 2024 | 0.7 | 7.1 | 10.6 | 28 | |
| 18 Nov 2024 | 8.7 | 7.9 | 11.6 | 31 | wet |
| 19 Nov 2024 | 2.5 | 1.7 | 12.5 | 41 | |
| 20 Nov 2024 | 0.0 | 0.1 | 5.7 | 28 | |
| 21 Nov 2024 | 3.1 | 0.2 | 3.4 | 27 | |
| 22 Nov 2024 | 0.0 | 1.2 | 7.0 | 30 | |
| 23 Nov 2024 | 21.4 | 3.3 | 14.2 | 54 | wet · wind |
| 24 Nov 2024 | 14.4 | 11.5 | 17.1 | 58 | wet · wind |
| 25 Nov 2024 | 3.1 | 8.7 | 11.9 | 30 | |
| 26 Nov 2024 | 1.9 | 6.9 | 10.4 | 30 | |
| 27 Nov 2024 | 13.5 | 2.8 | 13.1 | 38 | wet |
| 28 Nov 2024 | 0.0 | 1.6 | 9.0 | 25 | |
| 29 Nov 2024 | 0.0 | 8.5 | 10.7 | 34 | |
| 30 Nov 2024 | 1.3 | 11.2 | 13.9 | 23 |
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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