this post was submitted on 20 Apr 2025
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I've been meaning to ask this for a while. I saw a comment a month or so ago. Person said they keep their thermostat at like 65 in the winter and 78 in the summer. 78 seems fucking insane to me. That's too damn hot for inside. How do you sleep at 78 degrees?

Are they a lizard person or am I a baby?

Edit 1: I love all the comments on this! Never thought this post would create such discussion. Looking at the comments vs upvotes it honestly seems 50/50ish that 78 is hot for the indoors. Can lemmy do polls?

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[–] MoreFPSmorebetter@lemmy.zip 3 points 11 hours ago

If I'm paying the bills the AC is set to 72 in the summer and the heat is set to 66 in the winter.

If I'm not paying the bills the AC is set to 66 when it's hot and the heat is set to 72 when it's cold.

[–] Shaggy1050@lemmy.world 3 points 11 hours ago

64/78 year round. Occasionally knock it down to 74 in the summer when it's going to be really hot and the AC unit may not keep up.The house retains heat too well and bakes in the evening sun.

[–] TriflingToad@sh.itjust.works 1 points 9 hours ago

some people in my family have sensory things where they feel slightly hotter than others. 69f for most of the year, in winter we hardly use the heater since it doesn't freeze where we live, but my room doesn't have full insulation since the garage is below it, so I have a little bathroom heater in winter.

If it was up to me probs ~71.

[–] Revan343@lemmy.ca 2 points 12 hours ago

Usually around 18-19, 15-16 overnight

[–] k_rol@lemmy.ca 1 points 10 hours ago

23 in winter and 22 in summer. Nights are set at 18 all year long.

[–] RBWells@lemmy.world 4 points 14 hours ago* (last edited 14 hours ago)

Yes, 65F for the winter or lower, I hate the heater, and yes, 78F in summer, the heat pump struggles and it's plenty cool enough, feels cool compared to outside.

ETA I grew up in Florida without air conditioning. No central air until I was 24, sometimes window units. And at school no air conditioning till 7th grade and they kept it fucking FREEZING in that school so you would be going always from hot outside to so cold inside, it was worse than none.

People absolutely can adapt to the humidity and heat but buildings do not, they hold up so much better with the central air drying them out.

[–] Bytemeister@lemmy.world 2 points 13 hours ago

Grew up in a house with no AC in the summer. Would easily hit high 80s inside during the day and hover in the lower 80s or high 70s at night.

You learn how to deal with it. Use fans to bring cooler air in at night. Close up windows and curtains (especially south-facing blinds) during the day. Hydrate frequently. At night, strip down as far as comfortable, use just a sheet instead of a blanket, and have a fan to circulate air. AC is a relatively new invention, people have been living longer in hotter areas without it. 78 degrees should literally be "no sweat".

[–] Valmond@lemmy.world 6 points 17 hours ago* (last edited 17 hours ago)

23-25 in the winter (depends on humidity), switched off in the summer.

[–] AnonomousWolf@lemm.ee 7 points 18 hours ago

21 during the day and at bedtime 15

[–] DrainKikoLake@lemmy.ca 2 points 15 hours ago

Heat to 69 in the winter, cool to 74-76 in the summer.

[–] qjkxbmwvz@startrek.website 3 points 18 hours ago* (last edited 18 hours ago)

Here's January of this year. San Francisco, so pretty moderate weather


typically don't run heat during the day, and low 60s at night (if at all) during the winter. Large temperature gradient throughout house, typically.

South facing windows gives kitchen and living room a greenhouse effect, particularly in the winter, hence the large daily temperature swings:

[–] HurlingDurling@lemm.ee 2 points 17 hours ago

72°F in summer / 64°F in winter

[–] acchariya@lemmy.world 1 points 15 hours ago

80 in summer during the day, 75 at night, 78 day and night in winter. We do not have heat, and 78 is required for the air conditioning to run periodically in winter to dehumidify the house.

Florida keys

[–] psud@aussie.zone 7 points 1 day ago

Cool to 25, heat to 20 (Canberra, Australia)

[–] ptc075@lemmy.zip 1 points 17 hours ago

74F in the winter. In the summer I usually leave the A/C off and use fans, but if it gets above 90F I'll let it run for a few hours before bed.

I seriously don't understand how people farther north of me survive the cold. And I live in Atlanta, so there's a lot of them.

[–] auginator@lemmy.world 2 points 20 hours ago

I live in California’s San Joaquin valley. It gets hot in the summer. PG&E bill is high as hell. Having your place cooler than 78F is a total luxury. In my place keeping it at 78F would mean a couple $600 bills. I have since gotten solar but I’ve heard PG&E increased their prices twice since then. And they want to increase it even more.

On the other hand some places like Sacramento used to have super cheap rates and people could crank their ACs on.

[–] tiredofsametab@fedia.io 7 points 1 day ago

23 in a lot of the winter (though I think the thermostat is wrong since that gets us to 20.x or 21 according to actual thermometers in the room) and usually 26 in 'dry' mode in the summer. Right now, we're going for days without using them at all but, if not the heat, then the humidity will put an end to that by late May or early June.

[–] IndustryStandard@lemmy.world 1 points 18 hours ago
[–] 60d@lemmy.ca 32 points 1 day ago* (last edited 11 hours ago) (4 children)

I set it to 291⁰K.

Not sure what that is in feet-degrees or miles or whatever you guys use in Murca.

Edit: changed to CAPITAL K, you nerds.

[–] psud@aussie.zone 5 points 1 day ago (1 children)

Kelvins are abbreviated to capital K

[–] 60d@lemmy.ca 1 points 11 hours ago

Thanks, changed.

[–] taxon@lemmy.world 15 points 1 day ago (3 children)

That's about 523.8 °R. I prefer 531.67 °R

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[–] TabbsTheBat@pawb.social 32 points 1 day ago (2 children)

I have mine at 20~22°C. Not sure what that is in non-standard units.. honestly I'd go lower, but then it becomes a hassle for other reasons

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[–] tehWrapper@lemmy.world 27 points 1 day ago

Cheap Canadian here..

18C in cold months and down to 15C at night.

Warm months I have central air but don't turn it on and just live with whatever the temp is.

[–] LwL@lemmy.world 1 points 19 hours ago

I agree that 78°F is way too high to be a confortable sleeping temp, though being in a country where residential AC isn't really a thing and inside temps at night often are higher than that in summer... you get used to it, it'll just never be fun.

My ideal sleeping temp is like 15°C but even if I had AC that seems too wasteful so I'd probably settle for 18-20

[–] Kolanaki@pawb.social 5 points 1 day ago

70F, all year round. Cuz that's basically the perfect "room temperature."

[–] HubertManne@piefed.social 4 points 1 day ago

I do 69 in winter because its close enough to what I want and funny. summer it depends on humidity. I often just keep it a bit below the temp outside because if you draw away humidity even low eighties is not bad.

[–] Brkdncr@lemmy.world 19 points 1 day ago

Dry climates will let you set the temp higher in the summer since your body will cool better.

I have solar/battery and heat pumps so I set my temp to whatever makes my SO happy.

[–] penguin202124@sh.itjust.works 9 points 1 day ago* (last edited 1 day ago)

Usually off, but if on 18°C (291.15K).

[–] Zatore@lemm.ee 9 points 1 day ago

Summer: 72-74 in the day, 68 for sleeping Winter: 65 in the day, 62 for sleeping. I love the cold

-40 so I don't have to specify which temperature scale I'm using.

[–] Carbonizer@lemmy.world 14 points 1 day ago (1 children)

69F (20.5C) year-round. Just for the memes.

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[–] Blackout@fedia.io 13 points 1 day ago (4 children)

AC only goes on when it's 90 out. Used it 5 times last year. People can adapt. It's like cutting sugar from your diet.

That really depends on the humidity. I can take a desert 90F or even 100F all day without AC without issue but 80F temps with a 70F dew point absolutely kills me. I lived in my area without AC for years. I never got used to it, I just stopped functioning when it got hot and muggy.

[–] SupraMario@lemmy.world 5 points 1 day ago

Sans humidity being like 85% its fine.... trying that when it's 85+ and humidity to match, you'll melt.

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[–] mesamunefire@lemmy.world 12 points 1 day ago* (last edited 1 day ago) (3 children)

Short answer:

  • 80 in summer
  • 60 in winter

Long answer: It gets over 110f so we keep it at 80 in the summer. We have double pane windows, a newer ac as well. Somewhat new insulation. Otherwise the power bill is over 1000 a month. Our bill in the winter is around 100ish and mostly gas. We keep the house at 60.

PGE is terrible. It's a little more than 60c a kilowatt now...

No that's not a typo on the prices.

[–] rishado@lemmy.world 1 points 12 hours ago (1 children)

Where are you?? I live in an old crappy insulated 4bed house in VEGAS and in the summer I pay like 300-350 for AC that I set and forget at 72°

[–] mesamunefire@lemmy.world 1 points 11 hours ago (1 children)

Whats your kwh rate? Is it 60c or more? Cause thats the main cause. Theres a metric ton of solar being installed last year or so.

[–] rishado@lemmy.world 2 points 11 hours ago* (last edited 11 hours ago) (1 children)

60c? You've gotta be talking about peak rates in like DTLA, surely?

You're telling me your base rate is 60c/kwh?

NV Energy charges me 10c/kwh

[–] mesamunefire@lemmy.world 1 points 11 hours ago (1 children)

Yep base starts at 60c. Last year it was at 50 but they increased it 4 times since then.

[–] rishado@lemmy.world 1 points 11 hours ago (1 children)

Holy crap buddy. Best wishes, that's brutal.

[–] mesamunefire@lemmy.world 2 points 11 hours ago (1 children)

Thanks friend.

The city itself is thinking of making making its own power company. We are having record number of businesses leave. So its a brutal time. It doesnt help with the whole tarrif situation and parts becoming hard to find (like solar/inverters/etc...).

[–] rishado@lemmy.world 2 points 11 hours ago (1 children)

I imagine a lot of residents are leaving too. I figured it was mostly real estate inflation but knowing that about the PG kwh price.. that must also be a massive consideration

[–] mesamunefire@lemmy.world 2 points 10 hours ago* (last edited 10 hours ago)

Its easier to get solar if your a resident. Also, since a lot of people here dont make all that much, they get a special rate. Below poverty line and all that.

But yeah theres a bit of movement. But Cali is still one of the better places to be at with the current climate as it is.

[–] Gradually_Adjusting@lemmy.world 1 points 14 hours ago

Y'all paying what rent should cost just to have electrons

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