How long do lemons last?

What the sources say

FoodKeeper puts lemons in one citrus entry with limes, oranges, grapefruit, tangerines and clementines, and gives the whole fruit 10 days in the pantry or 10 to 21 days in the refrigerator from purchase.¹

Freezing whole citrus fruit is not recommended in that entry.¹

Whole lemons therefore last longest in the refrigerator, where the upper end of the range is 21 days against 10 days in the pantry.¹

Lemon juice has two entries of its own.³²

Fresh squeezed juice keeps 6 days in the refrigerator and 12 months in the freezer, so the juice can go in the freezer even though freezing is not recommended for the whole fruit.²¹

The general lemon juice entry gives 12 to 18 months in the pantry from the date of purchase and 2 months in the refrigerator after opening.³

That entry lists no freezer time, and the fresh squeezed entry lists no pantry time.³²

Iowa State University Extension lists lemons among the non-climacteric fruits, which reach their peak sweetness and flavor on the plant and stop developing once harvested.⁴

It says these fruits are best stored in the refrigerator shortly after harvesting and kept away from climacteric fruits.⁴