Hi XXXXXXX again,
I just now answered this question.
Wonder whether you received the answer.!
With absence of any other symptoms and child being alright otherwise,feeding well etc, there is no need for concern regarding increase frequency of urination..
This can happen in cold
weather as you have mentioned.!
However in girl babies urinary infection is quite common.
For ruling out urinary infection, you have to get her urine examined for routine examination and culture.
At present it may not be necessary but at the earliest sign of suspicion ( crying when passing urine,fever
,etc) you have to go for the tests.