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on January is the most popular phrase on the web.

in January 18,000,000 results on the web	on January 1215,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
My birthday is on January. My birthday is in January. Which one is correct? In speaking are both of them accecptable? Thanks for your help. The following is a list of notable deaths in January 2014. Entries for each day are listed alphabetically by surname. A typical entry lists information in the ... 15 hours ago ... Volkswagen's massive recall will start in January ... to plan," then the automaker will start recalling affected vehicles in Europe in January 2016. Car Recall in January. CEO Matthias Müller said some vehicles would require new fuel injection equipment and ... 8 hours ago ... Volkswagen to Launch Diesel	Ma'am, it says here you were born on January 1st 1908. She disappeared on January 15, 1950. The Washington Generals on January 5, 1971. They moved in on January 15, 1909. Coordinated with the co Ask him how he helped his friend Griot win the tender on January 15th. When the gold began arriving, on January 13th 1937, there was unprecedented security. The cosmic calendar begins on January 1st with the birth of our universe.

in January

18,000,000 results on the web

on January

1215,000,000 results on the web

More popular!

My birthday is on January. My birthday is in January. Which one is correct? In speaking are both of them accecptable? Thanks for your help.
The following is a list of notable deaths in January 2014. Entries for each day are listed alphabetically by surname. A typical entry lists information in the ...
15 hours ago ... Volkswagen's massive recall will start in January ... to plan," then the automaker will start recalling affected vehicles in Europe in January 2016.
Car Recall in January. CEO Matthias Müller said some vehicles would require new fuel injection equipment and ...
8 hours ago ... Volkswagen to Launch Diesel

Ma'am, it says here you were born on January 1st 1908.
She disappeared on January 15, 1950.
The Washington Generals on January 5, 1971.
They moved in on January 15, 1909.
Coordinated with the co
Ask him how he helped his friend Griot win the tender on January 15th.
When the gold began arriving, on January 13th 1937, there was unprecedented security.
The cosmic calendar begins on January 1st with the birth of our universe.