Looking at any time the market has closed lower 4 or more times, I found 21 occurrences. Ten finished the next month higher and eleven finished it lower. Average gain was 5.1% and average loss 4.5%.
The longest losing streak was in 1974 when the S&P 500 finished lower 9 months in a row.
Looking at consecutive lows on a monthly chart does not seem to provide any quantifiable edge.