25th January and our first frog spawn in the garden pond this morning.
I've been expecting it any day as it's been "Croak City" out there for the past few evenings.
Not convinced that you can read anything into weather conditions and temperatures making much difference as previous years have been similar and yet it's been incredibly mild this winter.
Here are the past few years dates for first spawning:-
2015....29th Jan.
2014....4th Feb.
2013....27th Jan.
2012....14th Jan.