50mph Wind Normal?

Feel sorry for you, disheartening to get damage like that on ur plot! Hope it doesn't cost much to fix. I was on my plot most of the day yesterday watching my plot getting a battering lol, was worried about my polytunnel but it held strong

Winds like that are not normal for May, they are more likely in the winter months. But we have had similar winds in the last few terrible summers so maybe our climate is changing?! Keeping fingers crossed thus summer is decent!

Many allotment sites are more exposed than gardens. I feel so sorry when I see neighbouring plots suffer damage. Often some structures ( especially some of those flimsy shop greenhouses)  and/or bean supports/netting are not up to the task. It's easy to underestimate the wind. Late Summer high winds can be the most disappointing as bean and sweetcorn crops  can take a battering. We protect against pests carefully but sometimes forget to protect from weather when planting on a balmy day.

Having said that, last Summer was particularly awful for Summer storms and lack of sunlight. Still, even then most crops did well. All depends on what we grow I guess, My 2ft broad beans took bit of a battering one day this week. Hopefully most will recover but my fault as I didn't stake and twine them properly... a bit lazy of me. Lesson learned.

I'm sorry to say that it's also a normal occurrence for me here in my location regardless of the season  .
All my structures are bolted down and reinforced, gave up with aluminium framed greenhouses as the wind tends to twist the frames so have resorted to wooden ones which are more expensive but far easier to repair.
My hubby throws heavy duty rope netting over the greenhouses and cold frames if a hoolie is forecast and ties them to ground anchors, this seems to diffuse the wind a bit and also means that if your structure is trashed at least you don't have to go for miles around picking up the pieces