Shelter from the storm

Shelter from the storm,
As the hailstones rattle.
Leaves dip and rise.

(Ok I'm no Dylan .....but the phrase just fits!)
....
When we started out it was sunny, then although still bright, the hail rained down. I stood under this tree until the worst had passed. Remind me again, what month is it?

If you look large you might see some white smudges ... the big ones on the ground are sheep, the others are hailstones.