Yes it's normal. If it's humid outside it will likely be humid inside unless you have a/c. Make sure you don't have any water infiltration.

It could just be tannins, not necessarily a health risk, but they cause color and odor. Tannins are not removed by typical municipal water treatment and would be worse after rain in the right soil conditions. Take a look at your water report - they might test for tannins. If not, you can get your water tested at a certified lab.

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Mantis, don’t know how I missed this post. You still have some nice blooms, the gardens are a bit sparse here. Such a nice red on Arrogant Bastard. All Of My Love To You, what a nice daylily to have rebloom, gorgeous color. Sherry