Desert Conditions: Extreme Day‑Night Temperature Swings

Daytime

• Temps often >40 °C (104 °F)
• Humidity <20 %
• Strong afternoon winds
• Intense sun, clear skies, excellent visibility

Nighttime

• Temps frequently drop below freezing
• Humidity slightly higher but still low
• Winds calm or light
• Bright moon, spectacular stars (minimal light pollution)

These extremes stress desert organisms; many have evolved specialized adaptations to survive.