Fairfax Media Network

Agriculture Weather


NINO3.4 Index

  • location
  • Aus

The NINO3.4 index is one of several El Niņo/Southern Oscillation (ENSO) indicators based on sea surface temperatures.

NINO3.4 is the average sea surface temperature anomaly in the region bounded by 5°N to 5°S, from 170°W to 120°W. This region has large variability on El Niņo time scales, and is close to the region where changes in local sea-surface temperature are important for shifting the large region of rainfall typically located in the far western Pacific.

An El Niņo or La Niņa event is identified if the 5-month running-average of the NINO3.4 index exceeds +0.4°C for El Niņo or -0.4°C for La Niņa for at least 6 consecutive months.

Southern Oscillation Index

SOI

Nino3.4 Index

Nino3.4
Display Your Local Weather

Weather News

Perth weather: Temperature hits 40C for fourth day, equalling record from 1933

18:57 EDT

Perth has recorded its fourth consecutive day of temperatures above 40 degrees Celsius, equalling a record that has stood for more than 80 years, as a heatwave continues to grip the city.

Farm Management Deposits changes will give farmers chance to help themselves, once they have cash to spare

16:23 EDT

The Federal Government has introduced legislation to overhaul the Farm Management Deposits scheme, which it says will help farmers to help themselves.

Hobart set to cool after a warm start to February

14:50 EDT

The first ten days of February have set a new record for Hobart with each day breaking the 21 degree mark, although a series of fronts on the forecast will bring a cooler change.