Winter Tyres - to fit so late in the season or not?

I got home last week having left the car on it's 20" summer tyres over the winter. I wasn't expecting to come back to a mid-winter that has arrived at the end of March.............. Now I have used my 20's in cold temperatures without problems before but not in several inches of snow. I have a trip to Chester coming up in the next 3 weeks and I wonder if it will be worth changing over to the 19" Ice and Snow tyres I have for winter use. They are brilliant in heavy rain too, but I'm not expecting torrents of rain.
Anybody any thoughts on whether its worth changing over for a couple of weeks when we could suddenly be plunged into summer temperatures!

All this snow could be gone within the next week or so. I am in Whitby and a friend drove from here to Preston on Sunday with no problems whatsoever he said the roads were absolutely fine.

I took my winter tyres off 3 weeks ago because somebody told me it was almost spring

I had mine booked into my local garage this weekend to put my 20" style 6 back on - cancelled that on Friday morning. Given that West Yorkshire is still under a foot of snow in places with roads still blocked and threats of more later this week, i think i may wait a while longer...
Who knows, maybe my summer tyres will not even go on this year...???

Actually the summer tyres aren't too bad in snow, and I still have lots of tread left on them but it seems a waste to have a set of proper winter wheels/tyres and not to use them this year!

Had no issues with 20s in the snow.

If you have your winter tyres mounted on rims it's no problem to change them over, better safe than sorry. I've used my winter tyres in warmer weather and there's no issues with them,
Tim