Data downloads
Clean, ready-to-use files updated automatically.
- oni.csv Oceanic Niño Index, every 3-month season since 1950.
- weekly.csv Weekly Niño 1+2, 3, 3.4 and 4 anomalies (last 5 years).
- episodes.csv El Niño and La Niña episodes with start, end, peak and strength.
- cities.csv Monthly rainfall and temperature by ENSO phase for 58 cities.
- enso.json Current status, latest values and NOAA synopsis (JSON, CORS enabled).
Sources: NOAA Climate Prediction Center (public domain) and NASA POWER. Please credit "NOAA CPC via elninoforecast.com".