I just checked my calendar and it is, as I suspected, the end of March. Why has winter not ended? There is simply no sign of spring here in Central Illinois.
I have noticed this: a mild winter seems to bring a cool March. And this was a pretty mild winter here. We had one big snow right before Thanksgiving (which then melted the next day or so) and only a few one-inch snowfalls after that. There also were not a lot of really bitterly cold days. And while it's not bitterly cold now, it's not at all Spring-like either.