How to draw scatter diagram according to {month, day} time format

Question

I want to plot in the {Month,Day} time format, but the DateListPlot function seems to only accept the {Year, Month, Day} format. What can I do to draw the time image correctly?

data={{{1, 20}, 269.`}, {{1, 21}, 403.`}, {{1, 22}, 523.`}, {{1, 23}, 
  783.`}, {{1, 24}, 1183.`}, {{1, 25}, 1796.`}, {{1, 26}, 
  2528.`}, {{1, 27}, 4172.`}, {{1, 28}, 6496.`}, {{1, 29}, 
  8531.`}, {{1, 30}, 10642.`}, {{1, 31}, 12978.`}, {{2, 1}, 
  15232.`}, {{2, 2}, 17697.`}, {{2, 3}, 20522.`}, {{2, 4}, 
  23614.`}, {{2, 5}, 27426.`}, {{2, 6}, 31029.`}, {{2, 7}, 
  34038.`}, {{2, 8}, 37346.`}, {{2, 9}, 42508.`}, {{2, 10}, 
  45767.`}, {{2, 11}, 47609.`}, {{2, 12}, 49082.`}, {{2, 13}, 
  62170.`}}
DateListPlot[%]

Answer 1

Use the option DateFunction

DateListPlot[data, DateFunction :> (Prepend[#, 2020] &)]

or prepend the {month, day} pairs with an arbitrary year:

DateListPlot[MapAt[Prepend[#, 2020] &, data, {All, 1}]]

to get

Answer 2

Or another variant:

DateListPlot[ReplacePart[#, 1 -> Prepend[#[[1]], 2020]] & /@ data]