Weather information for the Joshua Tree NP area is provided below. Average temperatures, climate details and current forecasts are included.
Days are typically clear with less than 25 percent humidity. Temperatures are most comfortable in the spring and fall, with an average high/low of 85 and 50°F (29 and 10°C) respectively. Winter brings cooler days, around 60°F (15°C), and freezing nights. It occasionally snows at higher elevations. Summers are hot, over 100°F (38°C) during the day and not cooling much below 75°F (24°C) until the early hours of the morning.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
| Avg. High | 64 | 69 | 75 | 83 | 91 | 101 | 106 | 104 | 97 | 86 | 72 | 64 | |
| Avg. Low | 36 | 39 | 43 | 49 | 57 | 65 | 72 | 70 | 64 | 52 | 41 | 35 | |
| Precipitation | 0.6 | 0.5 | 0.5 | 0.1 | 0.1 | 0.0 | 0.6 | 0.8 | 0.6 | 0.2 | 0.2 | 0.4 | |
