Guyancourt, jeudi, 30 juillet, 21:10
Couvert. Ressenti 29°C. Maximale 29°C, minimale 17°C.
En juin à Guyancourt, la maximale moyenne est de +20.5° et la minimale de +11.5°. Il tombe environ 64 mm sur le mois (11 jours de pluie). Le record de chaleur est de +34.9° (2025) et celui de froid de +3.4° (1975). La normale est calculée sur les 60 dernières années.
| Jour | Maximale | Minimale | Prob. de pluie | Record max. | Record min. |
|---|---|---|---|---|---|
| 1 | +19.5° | +10° | 35% | +28.5° (1994) | +3.6° (1975) |
| 2 | +19.7° | +10.5° | 40% | +29.6° (2019) | +3.4° (1975) |
| 3 | +19.4° | +10.6° | 53% | +26.3° (2011) | +3.5° (1991) |
| 4 | +19.3° | +10.7° | 42% | +27.5° (2011) | +3.5° (1991) |
| 5 | +19.3° | +10.6° | 52% | +29.7° (2015) | +3.5° (1991) |
| 6 | +19.3° | +10.6° | 38% | +29.2° (1996) | +6.1° (1986) |
| 7 | +19.4° | +10.8° | 38% | +30.3° (1996) | +6.4° (1969) |
| 8 | +19.8° | +10.6° | 42% | +29.3° (2004) | +6.7° (2005) |
| 9 | +20.3° | +11° | 35% | +28.9° (2023) | +6° (1972) |
| 10 | +19.9° | +11.1° | 50% | +27.3° (2023) | +5.8° (1972) |
| 11 | +19.7° | +11° | 32% | +28.7° (2006) | +5.9° (1972) |
| 12 | +19.9° | +10.8° | 38% | +29.9° (2025) | +6° (1972) |
| 13 | +20.2° | +11° | 37% | +32.5° (2025) | +6.1° (1978) |
| 14 | +20.9° | +11.3° | 35% | +28.9° (2021) | +6.3° (1987) |
| 15 | +20.4° | +11.5° | 25% | +27.9° (2022) | +6.5° (1971) |
| 16 | +20.5° | +11.3° | 30% | +31.1° (2021) | +6° (1971) |
| 17 | +20.9° | +11.4° | 42% | +31.3° (2022) | +6.3° (1978) |
| 18 | +21° | +11.8° | 32% | +34.5° (2022) | +6.6° (1991) |
| 19 | +20.9° | +12.1° | 47% | +31.8° (2017) | +7° (1972) |
| 20 | +20.9° | +12.1° | 33% | +32.6° (2017) | +6.2° (1972) |
| 21 | +21° | +12° | 42% | +34.2° (2025) | +5.2° (1964) |
| 22 | +20.8° | +11.8° | 32% | +33.3° (2017) | +6.5° (1964) |
| 23 | +20.8° | +11.9° | 35% | +30.1° (2005) | +6° (1964) |
| 24 | +21.1° | +12.1° | 27% | +30.7° (1976) | +7.5° (1978) |
| 25 | +21.9° | +12.6° | 40% | +34.1° (2025) | +6.7° (1978) |
| 26 | +22.5° | +13° | 40% | +32.3° (2019) | +7° (1978) |
| 27 | +21.9° | +13.1° | 35% | +33.6° (2011) | +8.4° (1980) |
| 28 | +21.5° | +13° | 33% | +32.4° (2005) | +6.3° (1962) |
| 29 | +21.5° | +12.5° | 28% | +33° (2019) | +6.7° (1981) |
| 30 | +21.8° | +12.5° | 33% | +34.9° (2025) | +6.5° (1980) |