20 cities · every day since 1940

Every year of weather, ranked.

Was last summer really the hottest? Flip through each city's climate since 1940: years ranked, records, year-vs-year duels and the weather on your birthday.

Explore the cities My birthday weather

CitySingapore

Hottest yearHottest year 2016

vs normalvs normal +0.8 °C

NormalNormal 26.9 °C

Six ways to flip the weather

Every year ranked

Warmest, wettest, snowiest: line up every year of a city against its normal and see where yours lands.

Year vs year

Pick two years and let them fight it out, month by month, with a final score.

Records

Hottest day, coldest night, wettest day, strongest gust, and the records of every month.

Birthday weather

Type a date and find out what the sky was doing that day, and how it ranks.

City vs city

Two climates side by side: warmer, wetter, and month by month.

Month by month

Every January, every July… each month has its own page, ranking and records.

What was the weather on the day you were born?

Pick a city and any date since 1940.

City

Questions & answers

What is ClimaFlip?

A free site that turns weather history into something you can play with: for each city, its normal climate, every year from 1940 to 2025 ranked, records, duels between years and the weather on any day.

How are the years ranked?

Each year is compared with the same city's 1991–2020 normal. Rank 1 is the warmest year (or the wettest, the snowiest… depending on the measure you pick).

Why are some values marked « estimate »?

Our figures describe the area around each city rather than a single thermometer, so peaks can be a little softer than what one station records. When a long-running station nearby holds a stronger reading, we show it too, marked « measured ».

Is ClimaFlip free?

Yes: every page and every tool is free, without sign-up.