No, we can't say any particular weather phenomenon is certainly a direct consequence of global warming. But there sure are a lot of anomalies these days, among them the deep drought in California.
If you live in California, you might think: hey, it rained quite a lot last month -- haven't water conditions improved?
No, the drought is not over and April rains barely made a dent in the water shortage according to "Weather Historian" Christopher C. Burt at the Wunderground.
Apparently the snow that fell in April melted right away because of generally sunny days and already warm conditions. We're still going to be parched.