Warm night but where’s the moths?

Despite mild conditions overnight, numbers of moths in the traps here seemed low, something that has happened quite a few times this year in my experience. 16sp were seen in both my garden trap and another one run at work, the only migrant a single Plutella xylostella. Also recorded were L-Album wainscot, Flounced chestnut, Large wainscot (4 in total), Grey shoulder knot, Merveille du jour (3 in total, seems in good numbers this year), November moth agg. (2 – first for year), Streak and Mallow.