# How does the new "Degree Days" line work?

**URL:** https://community.beestat.io/t/how-does-the-new-degree-days-line-work/989
**Category:** Feedback & Discussion
**Created:** [November 21, 2023, 7:15pm UTC](https://community.beestat.io/t/how-does-the-new-degree-days-line-work/989 "2023-11-21T19:15:46Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![beeseason](https://community.beestat.io/letter_avatar_proxy/v4/letter/b/e56c9b/32.png) [@beeseason](https://community.beestat.io/u/beeseason)
#### Post date: [November 21, 2023, 7:15pm UTC](https://community.beestat.io/t/how-does-the-new-degree-days-line-work/989/1 "2023-11-21T19:15:47Z")

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I noticed the new Degree Days line in the Thermostat summary graph, but I don’t understand what it’s telling me.

![Screenshot 2023-11-21 at 11.15.23 AM](https://community.beestat.io/uploads/default/original/1X/07d0f611603d1ad49d531cfe3792109a8fe86d0f.png)

Thanks in advance.

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### Author: ![ziebelje](https://community.beestat.io/user_avatar/community.beestat.io/ziebelje/32/633_2.png) [@ziebelje](https://community.beestat.io/u/ziebelje)
#### Post date: [November 22, 2023, 4:07am UTC](https://community.beestat.io/t/how-does-the-new-degree-days-line-work/989/2 "2023-11-22T04:07:49Z")

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[Here’s an article I put together to help answer that](https://www.notion.so/beestat/What-are-Degree-Days-1c304e90961d4162b2ceff210df6e583). Let me know if you have any other questions!

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### Author: ![beeseason](https://community.beestat.io/letter_avatar_proxy/v4/letter/b/e56c9b/32.png) [@beeseason](https://community.beestat.io/u/beeseason)
#### Post date: [November 22, 2023, 2:16pm UTC](https://community.beestat.io/t/how-does-the-new-degree-days-line-work/989/3 "2023-11-22T14:16:48Z")

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Oh, looks like you have since fixed the graph. As you can see in the screenshot, I was getting 57 and 23 degree days for heating and cooling, which did not seem right and made me wonder if I was misinterpreting the data. The same day now shows as 5.7 and 2.3, so I guess it had been erroneously multiplied by 10.

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### Author: ![ziebelje](https://community.beestat.io/user_avatar/community.beestat.io/ziebelje/32/633_2.png) [@ziebelje](https://community.beestat.io/u/ziebelje)
#### Post date: [November 22, 2023, 2:32pm UTC](https://community.beestat.io/t/how-does-the-new-degree-days-line-work/989/4 "2023-11-22T14:32:56Z")

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As I was writing the article I noticed the error. 🙂

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### Author: ![paul2006](https://community.beestat.io/user_avatar/community.beestat.io/paul2006/32/713_2.png) [@paul2006](https://community.beestat.io/u/paul2006)
#### Post date: [February 16, 2026, 1:43pm UTC](https://community.beestat.io/t/how-does-the-new-degree-days-line-work/989/5 "2026-02-16T13:43:13Z")

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I’m not seeing degree days on my charts. I can get it if I download my profile but I’m not sure what time period that’s for.

Would it be possible to do degree days based on wind chill instead? Just thinking something that accounts for wind and humidity would be a better comparison across different days.

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### Author: ![Makin\_Honey](https://community.beestat.io/letter_avatar_proxy/v4/letter/m/bcef8e/32.png) [@Makin\_Honey](https://community.beestat.io/u/Makin_Honey)
#### Post date: [February 16, 2026, 2:33pm UTC](https://community.beestat.io/t/how-does-the-new-degree-days-line-work/989/6 "2026-02-16T14:33:39Z")

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Paul Williams, are you saying that your house is drafty and the interior temperature on heating and cooling days is affected by the wind? I would think that most people keep doors and windows closed when the heat or AC is on.

My understanding is that wind chill is normally a parameter that is only relevant to how humans perceive temperature when the wind hits our skin. And it would not “to first order” change the rate of heat gain or loss between the outside and inside of a house.

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### Author: ![paul2006](https://community.beestat.io/user_avatar/community.beestat.io/paul2006/32/713_2.png) [@paul2006](https://community.beestat.io/u/paul2006)
#### Post date: [February 16, 2026, 2:52pm UTC](https://community.beestat.io/t/how-does-the-new-degree-days-line-work/989/7 "2026-02-16T14:52:59Z")

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Yes, older homes especially, or any that aren’t air sealed very well, wind will play a huge factor. I know wind chill is more of a human thing, but it at least takes wind and humidity into account and if used for comparing runtimes across two days or periods would be fine. I figured it would be easier to get historical data on rather than trying to calculate Johnson degree days.
