What does the Random Month Generator work out?

Pick a random month, with or without a year. It is one of the Randomizers & Pickers tools on Mondo Knows.

How is the Random Month Generator calculated?

For planning prompts, reading challenges and random sampling across a year. Months are drawn uniformly, so February is as likely as July even though it is shorter. The maths is short enough to check by hand: One month drawn uniformly from the twelve, plus an optional random year in your range.

Do I need to sign up, and is my data stored?

No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

Mondo Knows Tools

Random Month Generator

Pick a random month, with or without a year. Use the free random month generator below to get an instant answer, with the formula shown so you can check the maths and trust the result. Free, private, and no sign-up.

How many months

Include a random year

Mondo says

Fill in the fields, then press Pick a month.

How it works

For planning prompts, reading challenges and random sampling across a year. Months are drawn uniformly, so February is as likely as July even though it is shorter.

The formula

One month drawn uniformly from the twelve, plus an optional random year in your range.

Random Month Generator: common questions

What does the Random Month Generator work out?: Pick a random month, with or without a year. It is one of the Randomizers & Pickers tools on Mondo Knows.
How is the Random Month Generator calculated?: For planning prompts, reading challenges and random sampling across a year. Months are drawn uniformly, so February is as likely as July even though it is shorter. The maths is short enough to check by hand: One month drawn uniformly from the twelve, plus an optional random year in your range.
Do I need to sign up, and is my data stored?: No sign-up, and nothing you type is sent anywhere. The calculation runs in your own browser, so the figures stay on your device and the page works offline once loaded.

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Estimates for general guidance only. This is not financial, medical or legal advice. Everything runs in your browser and nothing you type is stored.