I want to like Wolfram Alpha…

Aside

I want to like Wolfram Alpha but every time I throw a question at it with even moderate complexity it fails to give me the info I need. For example:
http://www.wolframalpha.com/input/?i=days+since+rain+in+phoenix

You can find the answer if you dig around enough, but it’s up to you to calculate the days since the beginning of March yourself.

NOAA actually makes the data easier to find:
http://www.cpc.ncep.noaa.gov/products/global_monitoring/precipitation/sn72278_1yr.gif