It's been 11 years since the North Atlantic Oscillation (NAO) had a daily value of -2σ or lower (🔴) during December.

The streak may end next week! 📉

The following Decembers had NAO values ≤-2: 1961-63, 1970, 1976-78, 1997 & 2008-10.

🧵 Here's how those months turned out... pic.twitter.com/uyQZXkiEAs

— Ben Noll (@BenNollWeather) November 28, 2022