At my favorite grocery, for example, avocados vary from 19¢ up. When they go over 49¢, I quit buying them. Some other groceries have them as high as $1.79 each.
Similar with cantaloupes, which vary from week to week and store to store. One week they are 99¢ each. The next week they were $1.99. Another store had them at $2.50.
Also, even ‘fresh’ products are imported. Pears-USA, Roma Tomatoes-Mexico, Cantelopes-Costa Rica, Guatemala, Honduras.
We used to see ‘seasonal’ produce. Just a decade ago, I would never see cantaloupes or watermelons later than September. Now, the stores stock them even in winter.
Do you have an Aldi’s nearby?
They are getting much better at storage. I read a story about apples which they store in sealed warehouses just above freezing and with a very low oxygen content to keep them fresh for a long time. This results is relatively stable prices throughout the year (generally $1.79-$1.99 for my favorite Granny Smiths) rather than selling them cheap right at harvest and then much more expensive the rest of the year.
Which reminds me, I didn't see any huge sales on citrus this winter like usual. Was there a bad harvest or are they doing the same thing with oranges.
The government relies on this behavior to minimize the effect of inflation, adjusting the CPI for changes in consumption.