What is WeatherBlaze?
WeatherBlaze is a historical weather data platform that provides detailed climate records for thousands of cities across the globe. Unlike forecast services, WeatherBlaze focuses entirely on what the weather was— giving you a reliable, data-driven picture of any city's true climate.
Whether you're a researcher, a traveller planning a trip, a farmer scheduling crop cycles, or simply curious about your hometown's climate history, WeatherBlaze gives you the data you need — for free, without any sign-up.
Our Mission
Our mission is to make accurate, long-term climate data freely accessible to everyone. Climate insights should not be locked behind expensive subscriptions or complex APIs. We believe that open access to historical weather data empowers better decisions — from personal travel planning to large-scale agricultural and environmental research.
We are committed to presenting data honestly, clearly, and without distortion — letting the science speak for itself.
What WeatherBlaze Offers
40+ Years of Data
Climate records going back to 1981, sourced from NASA POWER satellite reanalysis.
Global Reach
Thousands of cities across multiple countries, from major metros to smaller towns.
NASA POWER Source
All data comes from the MERRA-2 dataset — a globally consistent, scientifically validated source.
Full Climate Profile
Temperature highs & lows, rainfall, humidity, wind speed, and solar radiation — monthly and yearly.
Data Sources & Licensing
NASA POWER — Historical Climate Data
All weather history records (1981–2024) come from NASA POWER (Prediction Of Worldwide Energy Resources), a MERRA-2 satellite reanalysis dataset providing globally consistent measurements at 0.5° × 0.625° resolution. Public domain.
Open-Meteo — Live Weather, Forecast & Air Quality
Current conditions, forecasts, and air quality data are provided by Open-Meteo and used under the Creative Commons Attribution 4.0 (CC BY 4.0) license.
Start Exploring Climate Data
Browse historical weather records for any city — free, no account required.
Explore Weather History →