PRODUCTS → https://www.howtowithdoc.com/march-lawn/
Doc talks about March lawn care and the crazy temperature swings that the month always has. There's not a lot you can do when your highs are in the 80's one day... then later in the week the lows are in the 20's. Be patient and the lawn will do just fine.
Did you miss our previous article...
https://lawnmaintenancetips.com/lawn-maintenance-tips/lawn-renovation-heavy-topdress-and-levelling-with-sand