It is impossible to time the market, so it doesn't really make sense to answer this in absolute terms. Is it a better time to invest than last month? Yes. Than last year? Yes. Could it be even better to invest next quarter? Possibly. But this is a unique situation and the markets are forward looking, so it is difficult to say.

The safest thing to do is average into it. Say you have a target to invest $2K/month under "normal" conditions. On a really bad month, maybe make it $4K. If conditions worsen next month, increase your investment even more. Eventually you might not be able to stand it...