Monterrey Climate Climate data for Monterrey (1951–2010, extremes 1929–2000)

| Month_ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec_ | Year_ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high °C (°F) | 38 , (100) | 40 , (104) | 43 , (109) | 48 , (118) | 46 , (115) | 45 , (113) | 42.5 , (108.5) | 42.5 , (108.5) | 41 , (106) | 39 , (102) | 39 , (102) | 39 , (102) | 48 , (118) |
| Average high °C (°F) | 20.7 , (69.3) | 23.2 , (73.8) | 26.9 , (80.4) | 30 , (86) | 32.2 , (90) | 33.8 , (92.8) | 34.8 , (94.6) | 34.5 , (94.1) | 31.5 , (88.7) | 27.6 , (81.7) | 24.1 , (75.4) | 21.2 , (70.2) | 28.4 , (83.1) |