...

[snowman19]

I don't agree with your first sentence. The correlation is a fairly weak one at that. The following list isn't totally inclusive, but are examples of numerous winters with a -AMO and -NAO or -AO:

1963-64

1964-65

1965-66

1967-68

1968-69

1969-70

1970-71

1976-77

1977-78

1978-79

1984-85

1986-87

1993-94

Many of which on that list were some of our coldest/snowiest winters on record. Broad-brush type relationships don't work out that well, e.g. +PDO = cold east, -PDO = warm east, as an example. There are some many variables and perturbations that we rarely see a 1:1 correlation b/t a specific index and our weather.

I read some research that tied a cool North Atlantic ocean to +nao/+ao, which would make some sense. Of course you would expect periods of negative AO and NAO in an overall -AMO regime. You're right, broad brush, but the research I saw said positive was favored as the general rule

[LongBeachSurfFreak]

Makes sense. Major canes were rare in the 80's and early 90's (with Hugo, Andrew and Gloria being exceptions) and the big noreaster's we've seen since 2000 also less common. Going to be a boring stretch coming up if that's what we're going back to.

The period of increased hurricane activity has to end some time. Personally I don't think we are there yet however and the last few crap seasons were just a blip in the longer period of increased activity. Of course wth climate change all bets are off.

[JBG]

It was interesting that there were only 15 through JJA 1970 and it was a warm early fall that year with 7 

90 degrees in September which went +2.3.

May 1970 had one or two 90+'s if my memory serves. Definitely May 9 and I think it carried over to May 10.

[JBG]

Crazy to see that between 1958 and 1976, there was only one summer (1966) that featured 100-degree temps and that, in that same year, it happened a (tied) record of four times.

Great stats as always, Unc!

 

 

I remember 66 well...there wasn't much ac around back then...many highways buckled in the heat around July 4th...between 1956 and 1976 only one year had a 30 day period averaging 80 or higher...that happened three times from 2010-2013...last years max was only 92...it hit 100 three years in a row from 2010-2012...the 1950's had the most years hitting 100 degrees...it hit 100 on 17 days from 1948 to 1957...

While I am decidedly not a global warming fan, I think some of KNYC's "cooling" has been from its increased forestation.  The 1950's were hot, no quieston about it.  But the relative absence of 100+'s after the 1950's and the low number of 90's compared to the "feel" after the 1960's I believe traces to the readings suppression.  Some historically cool summers such as 1969 show surprising numbers of 90+ days. I suspect the increase in forest growth inflated the number of apparently warm early readings and depressed those readings more recently.