Heard Island and McDonald Islands
Minimal impact · 2/10 Weak signal in El Niño years
No El Niño news coverage for Heard Island and McDonald Islands in the last year. The score is built from the measured climate anomaly below, the canonical weak signal signal, and population exposure — not from headlines.
RAINFALL · LAST 90 DAYS
+38%
412.1 mm vs 298.9 mm normal
Measured against the 1991–2020 average for the same calendar window.
TEMPERATURE · LAST 90 DAYS
+0.4°C
0.86°C mean vs 0.43°C normal
Mean 2 m air temperature vs the 1991–2020 average for the same window.
SIGNAL CHECK
Weak signal
No robust, reproducible El Niño teleconnection for this country.
NASA POWER (MERRA-2) reanalysis, 9 Jul 2026 – 6 Oct 2026, sampled at the country centroid (-53.1°, 72.5°). Normals are 1991–2020. How this is computed
Last 12 months vs normal
Observed monthly rainfall against the 1991–2020 climatology
Observed monthly rain (mm) 1991–2020 normal
Nearby
Other countries in Antarctic