Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
We had some really warm periods too. 1990-1991 had an average high of 65.4 compared to the usual 62.3. 2010-2012 averaged 63.4. We're just in a rough patch right now, and we don't know how long it could last really. The cold epoch of the late 70s was like 7 years, so hopefully it doesn't get this bad
If you compare 2010-2015 the difference isn't that big.
I know that. That is not my point. My point is they have three years now of very impressive warmth. How much longer can that go on? It is no coincidence that two really bad winters happen here when they are so warm. I have a vested interest in seeing them go below average for a few years, rather than the relentless warmth they have gotten. We were not supposed to be in this long term warm PDO, we were right in the middle of the cold PDO and it shouldn't have flipped already. Some claimed back in 2013 it was just gonna be a temporary flip to warm PDO then back to cold. I'm still waiting.
Coincidence the PNA is tanking and most negative all year in the middle of transitioning to La Nina? Probably not.
Add this to the puzzle of Hot Summer coming... or at least end of May into June for now. We'll see if it continues. Still early.
Trying to catch some signs before it happens is fun.
Negative PNA = sustained trough in West so that means Hot Ridge East of Rockies. Or simply Zonal all the way across.
What is interesting is look at how long and sustained that positive PNA has been. That has to be from all that warm water off their coast. And then it looks like a little blip to negative then back to positive.
Philadelphia annual mean 2013-2015 = 56.4F vs 1981-2010 mean of 55.8F.
Seattle annul mean 2013-2015 = 54.8F vs 1981-2010 mean of 52.4F.
Our mean went up .6F, and Seattle went up 2.4F.
So, yeah I'm waiting to see when they finally take a hit. Either they have some cold years coming, or their averages are going to shoot up.
Three years is an extremely small sample size and is hardly indicative of a trend. Philadelphia has been running more than twice as warm as Seattle (relative to normal) since 2000. It's still a small sample size, but 16 years is better than 3.
Philadelphia annual mean 2000-2015 = 56.5F vs 1981-2010 mean of 55.8F (+0.7F)
Seattle annual mean 2000-2015 = 52.7F vs 1981-2010 mean of 52.4F (+0.3F)
Three years is an extremely small sample size and is hardly indicative of a trend. Philadelphia has been running more than twice as warm as Seattle (relative to normal) since 2000. It's still a small sample size, but 16 years is better than 3.
Philadelphia annual mean 2000-2015 = 56.5F vs 1981-2010 mean of 55.8F (+0.7F)
Seattle annual mean 2000-2015 = 52.7F vs 1981-2010 mean of 52.4F (+0.3F)
Well it really isn't that much of a difference .3 vs .7F. We are a more volatile climate than the oceanic and stable PNW.
Three years is an extremely small sample size and is hardly indicative of a trend. Philadelphia has been running more than twice as warm as Seattle (relative to normal) since 2000. It's still a small sample size, but 16 years is better than 3.
Philadelphia annual mean 2000-2015 = 56.5F vs 1981-2010 mean of 55.8F (+0.7F)
Seattle annual mean 2000-2015 = 52.7F vs 1981-2010 mean of 52.4F (+0.3F)
Thanks for that stat, it makes me feel a bit better
Thanks for that stat, it makes me feel a bit better
Not as impressive as the warming in Europe though. Look at Zagreb.
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.
Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
