Diurnally rhymes with:
eternally, externally, internally, additionally, conditionally, congressionally, connally, connelly, connolly, constitutionally, conventionally, criminally, dannelly, developmentally, diagonally, donnelley, donnelly, educationally, emotionally, eternally, exceptionally, externally, fennelly, finally, fractionally, functionally, generationally, gravitationally, hennelly, institutionally, intentionally, internally, internationally, irrationally, kenneally, kennelly, marginally, medicinally, nationally, nominally, nunnally, nunnelly, nutritionally, obscenely, occasionally, operationally, originally, personally, phenomenally, professionally, proportionally, provisionally, rationally, regionally, rotationally, seasonally, serenely, subliminally, terminally, traditionally, uncannily, unconditionally, unconstitutionally, unfunnily, unintentionally
Diurnally sounds like:
darnall, darnel, darnell, dermal, diurnal, doornail, durnell, durnil