Daily rainfall, frost and wind for Swindon against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
SN1 1LD · 1 Mar 2025 – 31 Mar 2025
Rainfall over this period was 26% of the 10-year average for the same calendar window at this location. Conditions were drier than typical for the time of year.
Rainfall vs 10-yr avg
26%
19 mm vs 74 mm typical
Rain days >5mm
1
typical: 4.7
Frost days
8
typical: 4.8
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Mar 2025 | 0.0 | -2.4 | 8.6 | 12 | frost |
| 2 Mar 2025 | 0.0 | -1.6 | 8.9 | 10 | frost |
| 3 Mar 2025 | 0.0 | -2.5 | 9.7 | 9 | frost |
| 4 Mar 2025 | 0.0 | -1.3 | 10.9 | 13 | frost |
| 5 Mar 2025 | 0.0 | 0.5 | 12.1 | 18 | |
| 6 Mar 2025 | 1.1 | 5.5 | 14.4 | 25 | |
| 7 Mar 2025 | 0.3 | 9.0 | 14.4 | 31 | |
| 8 Mar 2025 | 0.0 | 6.7 | 15.7 | 22 | |
| 9 Mar 2025 | 0.0 | 6.2 | 16.2 | 21 | |
| 10 Mar 2025 | 0.6 | 7.0 | 10.0 | 24 | |
| 11 Mar 2025 | 1.0 | 3.7 | 7.2 | 27 | |
| 12 Mar 2025 | 0.9 | -0.3 | 6.7 | 25 | frost |
| 13 Mar 2025 | 1.1 | 0.3 | 6.1 | 26 | |
| 14 Mar 2025 | 0.5 | -2.1 | 7.4 | 22 | frost |
| 15 Mar 2025 | 0.4 | 0.5 | 7.6 | 29 | |
| 16 Mar 2025 | 0.2 | -2.3 | 7.1 | 28 | frost |
| 17 Mar 2025 | 0.0 | 3.1 | 7.1 | 28 | |
| 18 Mar 2025 | 0.0 | 0.8 | 10.4 | 29 | |
| 19 Mar 2025 | 0.0 | -0.6 | 13.9 | 14 | frost |
| 20 Mar 2025 | 0.0 | 6.2 | 18.0 | 23 | |
| 21 Mar 2025 | 4.1 | 8.6 | 15.6 | 29 | |
| 22 Mar 2025 | 5.2 | 8.5 | 15.2 | 21 | wet |
| 23 Mar 2025 | 1.2 | 7.4 | 13.2 | 21 | |
| 24 Mar 2025 | 0.0 | 5.1 | 11.9 | 21 | |
| 25 Mar 2025 | 0.2 | 4.5 | 14.5 | 18 | |
| 26 Mar 2025 | 0.0 | 4.7 | 14.7 | 15 | |
| 27 Mar 2025 | 0.1 | 5.1 | 12.7 | 24 | |
| 28 Mar 2025 | 1.9 | 5.1 | 11.7 | 30 | |
| 29 Mar 2025 | 0.0 | 1.8 | 11.5 | 34 | |
| 30 Mar 2025 | 0.0 | 7.2 | 14.1 | 31 | |
| 31 Mar 2025 | 0.0 | 2.4 | 15.4 | 13 |
1 day 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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