Summer doesn’t officially arrive until next week, but in South Texas, it has landed:
6:30 a.m. → 80 degrees.
We know it’s going to go up into the 90s close to (or over) 100-- that’s a given. It would be nice if it were cool enough (say, <75) to walk in the morning for just a bit. Now’s when I switch to Mall walking for the season.
What are you expecting summer temps to be?
Low 90s like always. Although NOAA (National Weather Service’s parent organization) predicts an above average chance of an above average average daily temp.
One of the hallmarks of global warming is not that daytime highs are significantly higher. A little yes, and are more frequently towards the upper end of the historical normal. It’s much more that overnight lows are significantly higher and occur significantly more often than historical norms. Said another way, hoping for that cool in the early morning to get things done may become an increasingly forlorn hope almost no matter where you live.
Here’s NOAA’s official thinking on this summer:
Note the color contours are not gradations of how much hotter they predict, but rather how much more likely they predict hotter-than average to be.
There’s lots of other good short- and long-term info, including precip chances, on the page where I got that graphic: Climate Prediction Center (noaa.gov)
Gawd, the Colorado mountains has a very wet start to ‘Summer’. Very rainy. It snowed yesterday at my place.
It appears that we have extremes going on. Climate change? Hard to say.
SNOW? 
In June?
Yup. Being at 11,200 feet elevation, it’s not that unusual, but I want some deck time.
Up here close to Lake Superior it could be anywhere from in the 40s to 90s. Right now we are in a very dry period. We haven’t had rain in weeks. The temps have been between 60 and 85 for the last few weeks. Nighttime temps have been in the 40s and 50s. So we’ve had comfortable sleeping weather.
Or does it?
The wiki on seasons
will quickly disabuse folks of the notion there’s any cut and dried answer to “What/when are seasons?”. Even within the USA there are different official definitions for different purposes.
As to the US weather authorities relevant to the OP’s topic, their “official” answer is that summer began on June 1st.
We’ve been pretty chill here in Wisconsin so far this season. We had a foot of wet, heavy snow back in mid April. Lately it’s been a few days in the 70’s, maybe one where we hit 80, but mostly we’ve been in the 60’s or less, with nights doing down to the mid 40’s.
There’s still predictions for a hot summer here though, once it finally arrives in ~ a week.
I’m traveling to Chicago for a few days as I type. I was appalled at how cold it’s going to be. Overnight lows of 50F? WTF??1? In mid-June??
Then again when I lived in St. Louis, so ~275mi south of Chicago, we used to attend a Memorial Day picnic. Some years it was 45F and spitting cold rain with a miserable wind. Other years the same date was 90F, still, hazy, humid, and stifling. Same date; very different weather.
Well, we had a feels-like of 101 down here today, so enjoy your cooler weather! Our heat advisory was extended until Friday at 7pm. And much more than normal-afternoon-summer thunderstorms for S. Florida.
In short - you’re missing a fantastic time to not be outside here anyway.
Seems to be a widespread pattern. Here in southern Ontario, after bragging/complaining about high-80s temperatures in early May in the Great White North, temperatures have been mostly sub-seasonal so far in June. And even “seasonal” is unusual considering the expectations of global warming which are especially apparent in more northerly latitudes.
I expect a huge bounce-back later in the summer with the A/C working overtime to bump up my electricity bill.
I’ve still got my windows open, but it won’t be for much longer. It got near 90° last week, so the a/c was turned on. They’re saying upper 80s this weekend - more a/c. And pretty soon, no more open windows till autumn. Dammit.
This is why I’m on the budget plan for electric - otherwise, stoopit high bills would be in the offing.
Here in the Piedmont region of the southeast US, to date, it has been by and large quite pleasant ( when it isn’t raining ). Mother nature generally starts turning the thumbscrews of humidity from about early-ish mid-May, with comfortable days becoming fewer and fewer.
The past 4 weeks have been remarkably comfortable. We may have saw mid-high 80s, and even 90 once, but mostly the 70s, and with dewpoints in the 50s, even 40s. Some Jimmy Buffet wannabees have been complaining about the unseasonably cool weather and crisp nights…music to my ears. It’s been a great spring: Wonderful. I can’t tell if this is MNs way of apologizing for the hot February with its slew of 80+ degree days ( and the very early launching of the pollen season ) or it’s just her warming up in the bullpen before she brings the hammer down for ( another ) oppressive summer. ( and sucking up to the Jimmy Buffet wannabees ) 
Just grateful for comfortable working weather both at work, and around the yard at home.
I’m in Chicago today. It was just above 80F & calm at 10am. By 12 noon it was 70F, foggy on the lake, with a wind howling out of the north. Now at 2pm it’s 65F and still cooling.
Here in western Washington we’ve had the temperature swing up into the 80s for a few days but cool off. This was happening in May, too. The upcoming forecast is showers until middle of next week, then it should settle into the standard mid-70s until The Grey returns.
Tell me about it. My grass and flowers love it but so do the weeds.
My Mom’s house is in Denver (hi desert climate), as well as my cousins. Not watered once this year.
My brother is in Denver too. Same thing. Can’t mow because it’s too wet, but that complicates things because the grass is growing like crazy.
Montana has been cool and quite wet also. Pretty pleasant, really. We got a few days of smoke from AB but not too much (so far). The other shoe will drop soon, I imagine.