Guyancourt, jeudi, 30 juillet, 21:10
Couvert. Ressenti 29°C. Maximale 29°C, minimale 17°C.
En mai à Guyancourt, la maximale moyenne est de +17.2° et la minimale de +8.2°. Il tombe environ 72 mm sur le mois (13 jours de pluie). Le record de chaleur est de +29.5° (2005) et celui de froid de -1.7° (1979). La normale est calculée sur les 60 dernières années.
| Jour | Maximale | Minimale | Prob. de pluie | Record max. | Record min. |
|---|---|---|---|---|---|
| 1 | +15.3° | +6.6° | 43% | +27.7° (2025) | +1.1° (1962) |
| 2 | +15.6° | +6.3° | 42% | +27.2° (2025) | +0.7° (1967) |
| 3 | +15.6° | +6.6° | 40% | +24.5° (1997) | -0.7° (1967) |
| 4 | +15.4° | +6.7° | 47% | +24.5° (2003) | -0.4° (1979) |
| 5 | +15.7° | +6.9° | 45% | +24.6° (1995) | -1.7° (1979) |
| 6 | +15.9° | +7° | 45% | +25.2° (1976) | -0.5° (1979) |
| 7 | +16.3° | +7.1° | 50% | +26.4° (1976) | +0.2° (1979) |
| 8 | +16.4° | +7.7° | 48% | +26.9° (1976) | +0.9° (1974) |
| 9 | +17° | +8.1° | 43% | +27.3° (1976) | +2.9° (1980) |
| 10 | +17.2° | +8° | 43% | +25.1° (2012) | +3.1° (1996) |
| 11 | +16.7° | +8.1° | 52% | +25.2° (1998) | +2.2° (1982) |
| 12 | +16.7° | +7.8° | 45% | +26.9° (1998) | +1.9° (1968) |
| 13 | +17.1° | +7.8° | 50% | +27.4° (1998) | +1.8° (2010) |
| 14 | +16.5° | +7.8° | 43% | +26° (1998) | +1.2° (1995) |
| 15 | +17.1° | +7.6° | 38% | +26.9° (2022) | +2.3° (2003) |
| 16 | +17.7° | +8.2° | 43% | +25.3° (2017) | +2.6° (1987) |
| 17 | +17.6° | +8.3° | 42% | +27.2° (2022) | +3° (1987) |
| 18 | +17.5° | +8.2° | 42% | +26.6° (2022) | +2.3° (1995) |
| 19 | +17.6° | +8.4° | 43% | +24.6° (1989) | +1.5° (1995) |
| 20 | +17.6° | +8.8° | 48% | +25.8° (1989) | +3.2° (1968) |
| 21 | +17.6° | +9° | 33% | +27.4° (2020) | +3.4° (1965) |
| 22 | +17.5° | +8.7° | 38% | +25.2° (1989) | +4.1° (1983) |
| 23 | +17.6° | +8.5° | 32% | +25.9° (1989) | +3° (1963) |
| 24 | +18° | +9.1° | 40% | +27° (1989) | +2.8° (1963) |
| 25 | +18.7° | +9.3° | 43% | +28° (2009) | +2.9° (2013) |
| 26 | +19° | +9.7° | 43% | +27.2° (2005) | +3.4° (1962) |
| 27 | +18.6° | +9.6° | 48% | +29.5° (2005) | +2.9° (2013) |
| 28 | +18.5° | +9.3° | 38% | +29.4° (2017) | +3° (1961) |
| 29 | +18.7° | +9.6° | 37% | +28.1° (2017) | +3.6° (1961) |
| 30 | +18.9° | +9.7° | 35% | +28.5° (2025) | +5° (1986) |
| 31 | +18.7° | +9.8° | 37% | +28.4° (2025) | +4.5° (1962) |