Keystone Climate: Weather by Month and Best Time to Visit
Best months for Keystone: November, December, February, March.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 21°C | 11°C | 63 mm | 7 | – | – | 8.1 |
| February | 22°C | 12°C | 56 mm | 6 | – | – | 8.2 |
| March | 25°C | 14°C | 64 mm | 6 | – | – | 8.2 |
| April | 28°C | 17°C | 54 mm | 6 | – | – | 8.2 |
| May | 31°C | 20°C | 59 mm | 8 | – | – | 7.7 |
| June | 32°C | 23°C | 127 mm | 16 | – | – | 6.0 |
| July | 32°C | 24°C | 127 mm | 19 | – | – | 5.6 |
| August | 32°C | 24°C | 144 mm | 20 | – | – | 5.3 |
| September | 31°C | 23°C | 117 mm | 15 | – | – | 6.3 |
| October | 29°C | 19°C | 53 mm | 7 | – | – | 8.1 |
| November | 25°C | 15°C | 36 mm | 5 | – | – | 8.5 |
| December | 22°C | 12°C | 56 mm | 6 | – | – | 8.3 |