Hail can occur in summer because although surface temperatures are warm, the upper atmosphere where hail forms remains very cold. Hail forms inside strong thunderstorm clouds called cumulonimbus clouds. These clouds have powerful updrafts-strong currents of rising air-that carry water droplets high enough into the cold upper atmosphere where they freeze into ice. As the hailstones are lifted and fall repeatedly within the cloud, they accumulate layers of ice and grow larger. When they become too heavy for the updrafts to support, they fall to the ground as hail

. Key factors causing hail in summer include:

• Warm surface temperatures create instability and strong updrafts in thunderstorms.
• Moist air near the surface provides water droplets that can freeze.
• Cold temperatures high in the atmosphere allow water droplets to freeze into ice.
• The stronger the updraft, the larger the hailstones can grow before falling

Thus, summer hail is common in regions where warm, moist air near the ground meets cold air aloft, leading to the formation of large cumulonimbus clouds and strong thunderstorms that produce hail despite the warm surface conditions