Greenland is still adding mass into late April.

Daily surface mass balance has been spiking well above the 1981 - 2010 average in recent days, with roughly 7 gigatons posted on April 21 alone:

nnnnnnnn
Snowfall has continued to reload the ice sheet, pushing broad, sustained gains. Losses remain confined to narrow coastal strips, which is typical — but the scale and persistence of the accumulation this late is not.

These gains sit at the edge of the record:

mmmmm
And they have pushed what has been a topsy-turvy season back to average:

mmmm