Weather delay tool
Weather record

Construction weather in Guildford, September 2024

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

Guildford — 1 Sept 2024 to 30 Sept 2024

GU1 3AA · 1 Sept 2024 – 30 Sept 2024

Rainfall over this period was 195% 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

195%

125 mm vs 64 mm typical

Rain days >5mm

7

typical: 4.1

Frost days

0

typical: 0.0

High-wind days

0

gusts ≥ 47 mph

Daily record

DateRain (mm)Min °CMax °CGust (mph)Flags
1 Sept 20241.115.128.121
2 Sept 20240.417.021.326
3 Sept 20241.815.820.821
4 Sept 20240.411.219.216
5 Sept 202415.413.219.333wet
6 Sept 20244.812.419.717
7 Sept 20246.711.419.912wet
8 Sept 20241.813.618.418
9 Sept 20240.011.316.530
10 Sept 20242.510.218.035
11 Sept 20240.57.714.630
12 Sept 20241.76.014.223
13 Sept 20240.04.415.413
14 Sept 20240.04.216.518
15 Sept 20240.28.019.021
16 Sept 20240.011.519.021
17 Sept 20240.08.519.927
18 Sept 20240.012.222.531
19 Sept 20240.014.023.630
20 Sept 20242.512.721.731
21 Sept 20243.713.522.319
22 Sept 202413.313.520.222wet
23 Sept 202426.813.916.826wet
24 Sept 20241.312.315.919
25 Sept 20247.110.016.127wet
26 Sept 202413.710.915.433wet
27 Sept 20244.66.712.032
28 Sept 20240.04.213.118
29 Sept 20242.35.813.837
30 Sept 202412.410.915.936wet

7 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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