In case anyone is curious, the $1 is the increase in the maximum SNAP benefit per month for an individual, from $291/month to $292/month. (The increases for larger households are similarly small.)

This is not the actual increase of the benefit amount. In particular, it appears the cost of living adjustment this year is 2.5%. I have been unable to find statistics on how many people/households actually receive the maximum amount, but I don't have a particular reason to believe it is large. (The average benefit amounts are significantly below the maxima.)

Tldr: the average SNAP benefit amount received by people has increased and will increase by significantly more than $1/month.