Daily rainfall, frost and wind for Guildford against the 10-year average — the starting point for any weather delay conversation on site.
Weather delay record
GU1 3AA · 1 Jul 2025 – 31 Jul 2025
Rainfall over this period was 146% of the 10-year average for the same calendar window at this location. Conditions were materially wetter than typical for the time of year.
Rainfall vs 10-yr avg
146%
88 mm vs 60 mm typical
Rain days >5mm
5
typical: 3.9
Frost days
0
typical: 0.0
High-wind days
0
gusts ≥ 47 mph
Daily record
| Date | Rain (mm) | Min °C | Max °C | Gust (mph) | Flags |
|---|---|---|---|---|---|
| 1 Jul 2025 | 0.8 | 19.4 | 31.1 | 19 | |
| 2 Jul 2025 | 0.4 | 16.8 | 23.8 | 27 | |
| 3 Jul 2025 | 0.0 | 9.9 | 22.9 | 17 | |
| 4 Jul 2025 | 0.0 | 10.9 | 25.2 | 24 | |
| 5 Jul 2025 | 2.1 | 14.6 | 20.6 | 31 | |
| 6 Jul 2025 | 10.5 | 16.1 | 22.5 | 24 | wet |
| 7 Jul 2025 | 6.6 | 13.0 | 19.3 | 29 | wet |
| 8 Jul 2025 | 2.8 | 11.0 | 21.8 | 20 | |
| 9 Jul 2025 | 1.0 | 10.9 | 25.6 | 17 | |
| 10 Jul 2025 | 0.0 | 15.1 | 30.0 | 18 | |
| 11 Jul 2025 | 0.0 | 15.2 | 30.8 | 19 | |
| 12 Jul 2025 | 0.0 | 15.6 | 30.2 | 19 | |
| 13 Jul 2025 | 0.0 | 13.3 | 28.5 | 22 | |
| 14 Jul 2025 | 1.4 | 16.0 | 22.4 | 34 | |
| 15 Jul 2025 | 0.2 | 13.1 | 20.9 | 37 | |
| 16 Jul 2025 | 0.0 | 13.8 | 25.0 | 24 | |
| 17 Jul 2025 | 1.5 | 18.4 | 25.7 | 19 | |
| 18 Jul 2025 | 0.0 | 16.2 | 27.5 | 20 | |
| 19 Jul 2025 | 32.1 | 16.7 | 22.2 | 19 | wet |
| 20 Jul 2025 | 7.3 | 14.5 | 20.0 | 28 | wet |
| 21 Jul 2025 | 0.6 | 12.9 | 22.1 | 23 | |
| 22 Jul 2025 | 1.5 | 14.6 | 22.1 | 20 | |
| 23 Jul 2025 | 1.1 | 13.6 | 21.5 | 19 | |
| 24 Jul 2025 | 0.0 | 13.3 | 21.5 | 26 | |
| 25 Jul 2025 | 0.1 | 13.6 | 24.7 | 20 | |
| 26 Jul 2025 | 0.7 | 13.9 | 23.1 | 19 | |
| 27 Jul 2025 | 0.0 | 14.5 | 21.3 | 21 | |
| 28 Jul 2025 | 0.0 | 12.2 | 23.0 | 19 | |
| 29 Jul 2025 | 3.1 | 13.1 | 20.0 | 17 | |
| 30 Jul 2025 | 0.4 | 14.8 | 24.1 | 21 | |
| 31 Jul 2025 | 13.9 | 14.7 | 21.9 | 20 | wet |
5 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.
Need this for your exact site and dates?
Run the free tool with your postcode and claim period — print-ready evidence in seconds.
Check your site's dates