This is the 546th most frequent Slovak word.
januári
"Januári" means "in January" in English.
Here, 'januári' again appears in the locative case, used with the preposition 'v' to specify the month during which the action of skiing takes place.
Chodíme lyžovať v Januári každý rok.
We go skiing in January every year.
In this sentence, 'januári' follows the preposition 'počas', staying in the appropriate genitive case to describe the time frame.
Počas januári sú dlhé noci a krátke dni.
During January, the nights are long and the days are short.
The word 'januári' is used here in the locative case to denote the time period of January, indicating when the event of having a birthday occurs.