terrible Summers - warm, humid and rainy - and horrible Winters - warmer, mostly rain with some snow....Even the Fall seasons, that generally used to be the best season of the year, have not been that great in recent years.
Sounds exactly like my 4 college years in New Jersey 1971-1974. And the transitional seasons in fall and spring that were supposed to be nice? Some of those lasted about a week.
I would like to see some more hard data from upper New England comparing temperature and precipitation to 50 years ago. I have a few charts comparing snowfall to precipitation. The trend is negative but only gradually so. Midwinter rain has always been a feature in the Northeast.
This is the Mansfield Stake at 3,950 feet, should be best case scenario for the Northeast. Snowfall data collection ended Dec. 2017
Pinkham is the notch between Wildcat and Mt. Washington.
Rangeley is the town at the base of Saddleback ski area.
East Jewett is in the Catskills. No data after 2020. The Catskills get a ton of rain in the winter and always have.
Snowshoe has the worst trend, probably distorted by last year being awful like 2016 was in the Northeast.
I'm tracking this info in the Pacific States too. Worst case I could find was Government Camp, which is at only 4,000 feet near Mt. Hood and got plenty of rain decades ago too.
Once you get high enough in the Northwest, like Crater Lake 6,800 feet, the trend is minimal.
But note the Northwest had a disastrous rain year in 2015 similar to the Northeast's in 2016.
The relationship of temperature to altitude is clear cut. The 1C rise in temperature we have seen in the past 50 years translates to 500 feet of elevation. So barring something unusual about the microclimate we can probably say that it rains for example now at 7,000 feet at Tahoe as much as it rained at 6,500 feet in the 1970's.
The Northeast is no doubt more complicated. Temperature variation is as much by latitude and distance from the Atlantic as it is by altitude. As for whether the temperature rise changes weather patterns, that's extremely speculative and far from proven.