It’s a difficult climate.
Summer is short and cool, with very long days (no true night between end of May to early August due to latitude).
I have regular frosts well into June. Safe time to plant out frost sensitive stuff is around midsummer. I like living on the edge and plant much, much sooner than that and cover if I must, but it’s risky. People in my region plant out potatoes last week of May!
I have my first killing frost end of August sometime, but I can and have had killing frosts as early as 8 Aug. It usually is a rather hard frost down to -2 or so and then we get another month before daily frosty nights set in. By mid September you have frost on the ground every single night. Sometime in November my ground starts to freeze deep and over the winter it freezes down to a depth of about 1.5m called ”tjäle”. It gives out around early April. My garlic in a good year is up during the first week of April. In a bad year like the last 2 has been, mid May or end of May.
Summer days are cool, 22 deg C is ”hot” here and in a lucky year I may get a week of that. Lately usually June can be ”warm” and by that I mean 20-22 C peaks; if 25 it’s in the news as we’re having a heat wave. Such stretches of a week or two at most are possible. Normal non-heatwave summer temp daily max is 15-19C, that is, I celebrate if it’s 20 and want to plant banana trees.
Nights are always cool; specifically where I grow I pretty much never have nights warmer than 9-10C. With climate change, weird things like some balmy 15deg nights can happen, in that case a couple days in a row and then back to 10 or under. Throughout 90% of my growing season my nights are single digit in Celsius.
Local frost is possible pretty much any time of the year. We thought for a long time that July was safe (and about the only safe month) but not even that This year I measured 0.5deg on the 3 July! I was very lucky that not all I grow was wiped out as several people around me within a one-hour radius had severe frost damage.
With climate change it’s been changing for the cooler and wetter. Now several summers in a row have been even cooler and much, much wetter than before. Usually the hotter it is ”everywhere” in Europe the cooler and wetter it is up here. This year we had seven weeks of rain and counting.
Humidity in the air is constantly high, to the point where my selection criteria for all crops I grow are changing towards fungal resistance. Nothing ever dries down so when I find a fava or a pea that actually dries down all the way into black or brown I celebrate. Things tend to rot and catch mold easily. We often joke that we could grow rice, had it been just a tad warmer here.