NINO3.4 Index
The NINO3.4 index is one of several El Niño/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 Niño 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 Niño or La Niña event is identified if the 5-month running-average of the NINO3.4 index exceeds +0.4°C for El Niño or -0.4°C for La Niña for at least 6 consecutive months.
Now Temperature
At Darwin Ap
15:50 CST
26°C
25°C
Thunderstorms
Weather News
Snowstorm hits Sahara for first time in nearly 40 years
16:35 EDT
The Algerian town of Ain Sefra â?? known as "the gateway to the desert" â?? is probably not the first place that springs to mind when someone mentions snow.
Positives of writing short stories help outback kid beat Queensland drought
16:30 EDT
For half of his life, eight-year-old writer Lochy Matthews' family property has been in drought.
Holiday heat to grip southeast
16:10 EDT
It will be a warm week of celebrations between Christmas and New Year's Eve for those in Melbourne, Canberra and Sydney this year.
