IPA: /ˌlætɪˈtjuːdɪnəli/
KK: /lætɪˈtjudɪnəli/
In a manner that relates to latitude, which is the distance north or south of the equator.
The climate varies latitudinally, affecting the types of vegetation found in different regions.
Latitudinally → It is formed from "latitude" (from Latin *latitudo*, meaning width or breadth) and the suffix "-ally" (meaning in a manner relating to). The word "latitudinally" means in a manner relating to latitude or width.
Think of 'latitude' as referring to the 'width' of the Earth, and remember that 'latitudinally' describes something done in relation to that width.