A short, gusty downfall. Webster, 1828, N.E.D.

1

1833.  We had two flurries on successive days; each of which, after covering the ground about an inch in depth, was succeeded by a bright glowing sky.—C. F. Hoffman, ‘A Winter in the Far West,’ i. 39 (Lond., 1835).

2

1836.  Occasional flurries of snow.—W. Irving, ‘Astoria,’ iv. 91. (N.E.D.)

3