We've been cruising along through March and April with above average temperatures. It's been downright pleasant. It's a long time since we had overnight frost. It's been windy from time to time but overall very pleasant. It's been so pleasant that I've ridden 100 km (62 mi) on my bike. One day we had a high of 27C (83 F) .
So this was not normal April weather. We usually get snow and lots of overnight frost. We can also get very nasty blizzards.
Well, it had to end. It cooled off Friday. Yesterday morning when I went birding it was miserable 4 C(37 F). In the afternoon it started to rain and about 6:00 Pm snow started and turned to huge wet flakes. Most of the snow melted as it hit the ground. We did accumulate about 2.5 Cm (1 in).
So it was just a matter of time before we got some cold and nasty weather in April. ...and we could still get more.
Now it got to 0 C. As you can see the bleeding heart is developing quickly. If it cools off slowly these hardy plants can withstand lots of frost as most the moisture leaves the plant cells so the cell doesn't expand and break.