Just leafing through the Jan thread. I'd like to see someone find winters that had djf all solidly BN. I'm not talking -2--1 or barely bn find a year that had all 3 well BN. I'd also challenge anyone to find a year that had significant snow/winter storms in all 3 months you can bring march/Nov in of you'd like to see if you can get 3 of 5. My guess is you are going to find a small % outside of the mountains and maybe the classic wedge zones.
All I'm saying is the idea that we in the SE lock cold and endlessly cycle through winter storms from December to Feb is the exception and in reality most of our winters are typically defined by shorter periods of cold or multiple snows within a 14-28 day period
I agree with your general idea that wall to wall cold is rare.
These are the 10 winters out of 144 (7% of them or ~1 in 14) that had all 3 months more than 2 BN at KATL:
1885-6, 1901-2, 1903-4, 1935-6 (all 4+ BN), 1962-3 (all 5+ BN), 1963-4, 1968-9, 1976-7 (all 4+ BN), 1977-8, 2009-10
- 5 of these 10 were weak to moderate El Niño
- 6 of the 10 were El Niño
- 3 of the 10 were neutral
- 1 of the 10 was La Niña (1903-4)
- 4 of the last 5 were weak to moderate El Niño
- the last 5 were all El Niño; the last that wasn’t was the neutral 1962-3; the last that was La Niña was way back in 1903-4