# 99% Relative Humidity

**URL:** <https://community.tempest.earth/t/99-relative-humidity/16122>\
**Category:** Tempest Owners\
**Tags:** tempest\
**Created:** [January 1, 2022, 6:18pm UTC](https://community.tempest.earth/t/99-relative-humidity/16122 "2022-01-01T18:18:06Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![pcapaccio](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/pcapaccio/32/5388_2.png) [@pcapaccio](https://community.tempest.earth/u/pcapaccio)\
**Post date:** [January 1, 2022, 6:18pm UTC](https://community.tempest.earth/t/99-relative-humidity/16122/1 "2022-01-01T18:18:06Z")

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Has anyone experienced their humidity only reaches 99%???

Yes i know not all the time 100% is expected. But in dense fog and rain 99% cap on the tempest.

I used to get 100% Not the last 10 rain/fog events 99%

I check nearby stations seems 99% for everyone on tempest.

Check your station and see when the last 100% relative humidity has happened.

Something has changed

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**Author:** ![jim.wn1x](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/jim.wn1x/32/1014_2.png) [@jim.wn1x](https://community.tempest.earth/u/jim.wn1x)\
**Post date:** [January 1, 2022, 9:39pm UTC](https://community.tempest.earth/t/99-relative-humidity/16122/2 "2022-01-01T21:39:35Z")

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My station hit 100% humidity yesterday morning at 9am.

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**Author:** ![storm\_tracker](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/storm_tracker/32/5771_2.png) [@storm\_tracker](https://community.tempest.earth/u/storm_tracker)\
**Post date:** [January 2, 2022, 3:40am UTC](https://community.tempest.earth/t/99-relative-humidity/16122/3 "2022-01-02T03:40:38Z")

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One of my Tempest° devices hit 100% RH on the morning of the 31st of December. . .while the other two only maxed out at 99%.

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**Author:** ![iladyman](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/iladyman/32/2305_2.png) [@iladyman](https://community.tempest.earth/u/iladyman)\
**Post date:** [January 2, 2022, 4:59am UTC](https://community.tempest.earth/t/99-relative-humidity/16122/4 "2022-01-02T04:59:31Z")

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This helps to explain the process. The Air was a previous model.  
[https://community.tempest.earth/t/cl-for-humidity-explained/2840](https://community.tempest.earth/t/cl-for-humidity-explained/2840)

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**Author:** ![wx3i09](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/wx3i09/32/14944_2.png) [@wx3i09](https://community.tempest.earth/u/wx3i09)\
**Post date:** [January 11, 2022, 10:48pm UTC](https://community.tempest.earth/t/99-relative-humidity/16122/5 "2022-01-11T22:48:17Z")

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Somewhat related to this, my area had an extended period of extensive foggy conditions, but, my Tempest never went above 96% for the RH. I contacted support and they have adjusted the RH calibration (there was an issue with the most recently applied calibration). I am pretty sure I would not have been concerned about a 99% cap (My Davis never goes above 99%), but, 96% was significant enough for me to care. As always, support was very helpful with the issue.