inland destination · warmest in Jul · mid-range
Open Chalfont St Giles on the live value map →| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 4 | 4 | 7 | 8 | 12 | 15 | 17 | 17 | 14 | 11 | 7 | 5 |
| Rain (days) | 62 | 43 | 50 | 48 | 53 | 54 | 41 | 52 | 59 | 66 | 62 | 65 |
Warmest month: Jul. Driest: Jul.
No mild-temperature months (18–28°C) — expect extremes.