In some places not strictly in drought the water cycle is still completely messed up. A few huge winter storms make up for lack of precipitation in the rest of the year and then promptly melts off. So the yearly average looks good on paper but it's dry as hell in summer/fire season with no snowmelt throughout the year.
As a kid in the Midwest (Minnesota) we'd get tons of snow and it would hang around until June or July since snow is such a good insulator - the big piles wouldn't melt I mean. Last time I remembered this happening maybe was 2005.
Now it snows, melts, gets cold, repeats and we don't really get any build up except maybe a big storm leaving enough for a week or two.