The Packer noted that bad weather has affected supplies of watermelons from Mexico this year.  They reported that volumes are down quite a bit from earlier in the season due to cold weather, which has delayed the ripening of the crop.  Supplies are expected to be short until mid-March.

“On Jan. 21, the U.S. Department of Agriculture reported per-pound prices of $.40-42 for cartons of red seedless 4-5s from Mexico, up from $.30 last year at the same time.”  See more at: https://www.thepacker.com/fruit-vegetable-enewsletter/Issue_Announcement/Mexican-watermelons-scarce-until-late-February-or-March-289315901.html#sthash.iCGiWT5s.dpuf
At the same time,  supplies of table grapes from Chile have rebounded from last year’s 19% loss of production due to a major freeze.  However, the size of the grapes was only rated medium due to a shortage of water, which reduced the size of the fruit, especially early in the season.  You can read that story here.
Source: Steve Evans via Commons Wikimedia
Source: Steve Evans via Commons Wikimedia