Here it is
2021 is on track to become the 3rd time for Chicago that each of the first 5 months of the year has less than 2" of precip. The other 2 times it happened were 1989, and some year called 1934.
Fwiw, June 1934 had 2.24" and June 1989 squeaked by at 2.01", so Chicago has never had a year when the first 6 months each had less than 2". Something to watch I guess.
2021:
J: 1.95" , F: 1.25" , M: 1.25" , A: 0.71" , M: 1.79" (through 8 pm CDT 5/28)
1989:
J: 0.82" , F: 0.77" , M: 1.67" , A: 1.37" , M: 1.59"
1934:
J: 0.84" , F: 0.52" , M: 1.21" , A: 1.32" , M: 0.67"