📈 The key El Niño monitoring region in the equatorial Pacific, Niño 3.4, has registered a 30-day anomaly of 2.0˚C above average for the first time during this El Niño event.
— Ben Noll (@BenNollWeather) December 13, 2023
Only 2015 & 1997 were warmer in Niño 3.4 over the same time period, dating back to 1981. pic.twitter.com/gJVPcd0mED