Time Series Datasets
Free datasets for forecasting, anomaly detection, and temporal analysis.
Weather & Climate
| Dataset |
Coverage |
Granularity |
Format |
License |
Browser? |
Link |
| NOAA GHCN |
Global, 1750–present |
Daily |
CSV |
Open |
Yes (subsets) |
ncdc.noaa.gov |
| ERA5 |
Global, 1940–present |
Hourly |
NetCDF |
Copernicus |
No |
cds.climate.copernicus.eu |
| Berkeley Earth |
Global, 1750–present |
Monthly |
CSV |
CC-BY-NC |
Yes |
berkeleyearth.org |
| OpenWeatherMap History |
Global |
Hourly |
API/JSON |
Free tier |
Yes (exports) |
openweathermap.org |
Energy
| Dataset |
Coverage |
Size |
License |
Browser? |
Link |
| UCI Household Power |
1 home, 4 years |
20 MB |
CC-BY-4.0 |
Yes |
UCI |
| AEMO (Australia) |
National grid |
500 MB+ |
Open |
Yes (subsets) |
aemo.com.au |
| ENTSOE (Europe) |
36 countries |
API |
Open |
Yes (exports) |
transparency.entsoe.eu |
| Pecan Street |
1,000+ homes |
100 GB+ |
Research |
No |
dataport.pecanstreet.org |
Financial Time Series
| Dataset |
Coverage |
Granularity |
License |
Browser? |
Link |
| Yahoo Finance |
Stocks, ETFs |
Daily/Intraday |
Free personal |
Yes (exports) |
finance.yahoo.com |
| Alpha Vantage |
Stocks, Forex, Crypto |
1min–Monthly |
Free API key |
Yes (exports) |
alphavantage.co |
| FRED |
800K+ economic series |
Various |
Open |
Yes |
fred.stlouisfed.org |
| Quandl/Nasdaq |
Financial data |
Daily |
Freemium |
Yes |
data.nasdaq.com |
IoT & Sensor
Benchmarks