The biggest month for ICO fundraising was March 2018 with $7.1 billion raised. The second largest month was February 2018 with $2.7 billion raised. The best month in 2017 was December 2017 with $1.61 billion.
January, 2018 and May 2018 were both a little better than December 2017.
A detailed ICO fundraising report was provided by ICObox. ICObox offers Blockchain Growth Promotion and Business Facilitation for ICOs. ICObox has a 1.5-month ICO promotion solution for 40 bitcoin.